From NCEP's short range forecast discussion:
THE NEXT SIGNIFICANT WX FEATURE WILL BE THE UPR LOW
PUSHING EWD TOWARDS SRN CA UNDERNEATH THE STG PAC NW RIDGE
AXIS...HIGH PWS OFFSHORE AOA 1.5" WILL
SUPPORT SOME LOCALLY ENHANCED RAINS...ESP FOR COASTAL SRN CA
WHERE RAINS HAVE ALREADY PUSHED INLAND. OVR THE HIGH TERRAIN OF
THE SRN SIERRA/SRN UT AND NEARBY HIGH TERRAIN AROUND THE GRAND
CANYON/MOGOLLON RIM...SNOW WILL DEVELOP AND MAY BE LOCALLY
SIGNIFICANT.
ORRISON
From Los Angeles/Oxnard NWS:
A MOST PERPLEXING FORECAST TODAY. IN FACT, ONE OF THE STRANGEST
WEATHER PATTERN'S I'VE SEEN HERE. WHAT MAKES THIS SUCH A DIFFICULT
FORECAST IS THE PRESENCE OF STRONG OFFSHORE FLOW IN ADDITION TO LOTS
OF MOISTURE. ORDINARILY THIS WOULD RESULT IN JUST LIGHT PRECIP AMOUNTS
AT BEST, BUT AS WE ALL NOTICED LAST NIGHT, THIS RULE DID NOT APPLY...AMOUNTS DROP OFF PRETTY QUICK AS
YOU GO NORTHWEST INTO VENTURA AND SBA COUNTIES, INDICATING THE FOCUS
OF THE PRECIP WILL BE IN THE EASTERN AND SOUTHERN PORTIONS OF OUR
FORECAST AREA. I'M NOT SURE I BELIEVE THESE NUMBERS COMPLETELY, BUT
EVEN IF HALF OF THAT VERIFIES, WE'RE IN FOR A PRETTY GOOD SOAKING LATE
TONIGHT THROUGH WEDNESDAY NIGHT. THE MITIGATING FACTORS ARE SIGNIFICANT, BUT SO FAR HAVEN'T DONE MUCH
TO CURB THE RAINFALL RATES.
WOFFORD
From Grand Junction, CO NWS:
THE GFS IS STRONGER AND MORE ENERGETIC THAN THE ETA WITH THE LOW...
HOWEVER I AM SKEPTICAL ABOUT THE GFS TIMING OF IMPULSES ROTATING
AROUND THE LOW. THE BEST GFS PRECIPITATION IS ASSOCIATED WITH THESE
IMPULSES WITH ONE BRINGING SHOWERS TO THE SOUTHWEST PORTION OF THE
FORECAST AREA BY WED AFTERNOON. NATIONAL DISCUSSIONS OUT OF HPC
SUSPECT FEEDBACK PROBLEMS IN THE GFS ON WED. THIS SEEMS REASONABLE.
MC
From Lake Charles, LA NWS:
PROGRESSIVE PATTERN WILL
CONT IN THE ATMOSPHERE THRU THIS WEEK AS THE SFC HIGH EXITS QUICKLY
TO THE EAST TO BE REPLACED BY A SFC LOW DROPPING INTO THE TX
PANHANDLE BY FRIDAY EVE. THIS WILL ALLOW MSTR TO POOL SOUTH OF THE
BOUNDARY AS AN UPR LVL SHRTWV APPROACHES FM THE WEST. YOU CAN KINDA
SEE WHERE I'M GOING HERE...RAIN/SHOWERS ON FRIDAY WITH THE BEST
CHANCE ON SATURDAY TAPERING OFF A BIT ON SUNDAY.
K. KUYPER
And finally from Huntsville, AL NWS:
ANOTHER RAINY WEEKEND? HAVE TO SAY YES. THE UPPER LEVEL SUBTROPICAL
LOW WAS SLOWLY MOVING TO THE NE...NOW NEAR 29N130W. COPIOUS MOISTURE
ASSOCIATED WITH IT WILL REACH NORTHERN ALABAMA STARTING FRIDAY. THIS
PRECIP SHOULD REMAIN ALL LIQUID THIS GO AROUND WITH A SOUTHERN STREAM
SYSTEM.
BOYD
From Caribou, ME NWS:
FEATURE STORY IS THE BRUTAL COLD THAT WILL CONTINUE TO AFFECT THE
REGION OVER THE NEXT SEVERAL DAYS. COLD WILL BE PERSISTENT AS NW
FLOW CONTINUES RIGHT ON THROUGH SUNDAY BETWEEN MARITIMES LOW AND
ARCTIC HIGH BUILDING SE THROUGH CENTRAL CANADA. WILL NOT SEE MUCH
MODERATION UNTIL CORE OF ARCTIC HIGH FINALLY SLIDES EAST OF THE
REGION ON MONDAY. THIS PERIOD OF BITTER COLD WILL RIVAL THE STRETCH
FROM FEB 10-13 1975 WHERE LOWS AT CAR WERE -25,-26,-27 AND -22.
HOWEVER...THIS WON'T APPROACH THE STRETCH FROM JAN 25 1994 TO FEB 1
WITH LOWS OF -22,-32,-23,-20,-29,-25 WHICH OCCURRED IN A STRETCH OF
ABOUT 20 CONSECUTIVE NIGHTS OF BELOW ZERO TEMPERATURES. CAR/HUL
COULD BREAK THEIR RECORDS TONIGHT AND HUL FRI NIGHT. COLD WILL ALSO
BE BRUTAL DOWNEAST...BUT PROBABLY NOT OF RECORD PROPORTION.
FITZSIMMONS
From Taunton, MA NWS:
NEXT SYSTEM TO ARRIVE FRIDAY NIGHT INTO SATURDAY NOW LOOKING LIKE IT
MAY BE NUDGED A BIT FARTHER SOUTH BY A STRONG HIGH PRESSURE OVER
SOUTHEAST CANADA. I WILL BACK OFF SLIGHTLY ON THE NORTHERN EXTENT
OF THE SNOWFALL...BUT WILL NOT REMOVE IT COMPLETELY. I HAVE SEEN TO
MANY TIMES THE MODELS HAVE BEEN TOO FAR SOUTH AND EAST WITH A LOW
PRESSURE TRACK.
I STILL THINK THE SECOND WAVE WILL BE THE MORE SIGNIFICANT OF OUR
WEEKEND WEATHER SYSTEMS. I WILL SPEED UP THE TIMING OF ITS
DEPARTURE FROM WHAT WE HAVE CURRENTLY IN THE FORECAST.
BELK
From Grand Rapids, MI NWS:
FOR SUNDAY INTO MONDAY... I BELIEVE WITH THE POLAR JET SHIFTING
NORTH... THE CONFLUENCE ZONE WILL BE OVER MICHIGAN AND THAT SHOULD
SUPPRESS THE TRAILING SOUTHERN STREAM WAVE FAR ENOUGH SOUTH THAT THE
RISK OF SNOW OVER THE SOUTHERN CWA ON SUNDAY IS MINIMAL... BUT NOT
ZERO. THUS I WILL LEAVE SUNDAY AS IS.
WDM
From Tucson NWS:
THE MUCH ANTICIPATED RAINFALL EVENT HAS YET TO
MATERIALIZE AND I AM NOW THINKING THAT THE AMOUNT OF RAINFALL THAT
WE AND THE MODELS HAVE BEEN FORECASTING IS WAY OVERDONE...WITH THE UPPER HEIGHTS STILL HIGH...AROUND 5700
DM...ANY TYPE OF HEAVY RAINFALL IS HAVING A HARD TIME DEVELOPING.
ALSO WATER VAPOR IMAGERY WAS SHOWING A DRY SLOT ASSOCIATED WITH
SHORTWAVE AND EXTRAPOLATING SPEED OF WAVE...WOULD PUT THIS FEATURE
NORTH INTO EAST-CENTRAL ARIZONA BY NOON TODAY. MODELS ARE NOT
HANDLING THIS FEATURE WELL AT ALL. EARLIER THOUGHTS OF A STRATIFORM
EVENT IS NOW TURNING TO MORE CONVECTIVE AND NOT AS WIDESPREAD.
G
From Austin/San Antonio NWS:
IF YOU LIKE DRIZZLE, THEN THE PAST COUPLE WEEKS HAS BEEN NIRVANA. AT
SAT THE PAST 15 OUT OF 21 DAYS HAVE YIELDED SOME FORM OF
PRECIPITATION. THE TREND WILL CONTINUE INTO SATURDAY, AND RAPID
MOISTURE RETURN RESULTING FROM A SUBTROPICAL JET STREAM FORECASTED
TO REMAIN ACTIVE UNTIL FURTHER NOTICE MEANS THERE SHOULD BE MANY
MORE WET DAYS AHEAD.
And finally from Wakefield, VA NWS:
WL CUT TO THE CHASE AND DESCRIBE THE COMPLEX WX SITN XPCTD FRI NGT
THRU EARLY MON...NO DAMMING...NO
PRECIP TYPE PROBLEMS...AS UPR CONFLUENCE IN SRN CANADA DSN'T SHIFT E
QUICKLY ENUF TO ALLOW STG SFC HGH TO SHFT E SOON ENUF TO COOL LLVL
ATMOS BEFORE MIDDAY SATURDAY...BEST CHC FOR LGT ICE ACCUMS THRU SATURDAY AFTN LUKS
TO BE INTERIOR LWR MD AND NRN FRINGE OF CWA...AND THAT IS IF THE
COLD AIR CAN COOL THE ROADS...TREES AND POWER LINES BELOW FREEZING
BY THAT TIME
.
NS
From NCEP's short range froecast discussion:
NEAR BLIZZARD CONDITIONS TO AFFECT MID-ATLANTIC REGION...MODELS TODAY STRONGLY SUPPORT A TREMENDOUS WINTER STORM
HAMMERING THE MID-ATLANTIC FOR THE NEXT TWO DAYS. COMBINATION
OF A S/CENT PLAINS UPR TROF AXIS MOVG SLOWLY EWD WITH VRY
IMPRESSIVE SUBTROPICAL MOISTURE ADVECTION NWD UP INTO A STG
BAROCLINIC ZONE...AND THEN OVERRUNNING AN ARCTIC AIRMASS
BECOMING ENTRENCHED OVR THE MID-ATLANTIC REGION AS ARCTIC HIGH
PRESSURE MOVES EWD ACR ONTARIO/QUEBEC. REALLY EXPECTING THE
SWD PUSH OF ARCTIC AIR FRM NEW ENGLAND INTO THE MID-ATLANTIC TO
YIELD A CLASSIC COLD-AIR DAMMING EVENT.
ORRISON
From Mount Holly, NJ NWS:
LO CONFID FCST WITH RESPECT TO PTYP AND SNOW ACCUM AS THERE ARE DIFS
BTWN THE ETA AND GFS. CUR THINKING IS TO LEAN TWD THE ETA FOR THE
FIRST 36 HRS OF THIS FCST PKG DUE TO ITS BETTER LLVL RESOLUTION AND
THEN SWITCH TO THE GFS BEYOND THAT BECAUSE OF ITS MORE LOGICAL SFC
LOW POSN ATTM...WITH 1 TO 2 INCHES OF FCSTD QPF
ACRS OUR CWA...WHAT THIS WOULD MEAN IF ITS ALL SNOW AND COMES TO
FRUITION. THERE WILL BE A SWATH OF 12-18 INCH SNOWS WITH THIS EVENT.
THE LOCN IS UNKN. TWENTY-FOUR YEARS AGO ANOTHER STORM THIS WEEKEND
SIGNALED A PAT CHG...WELL WHAT GOES AROUND COMES AROUND. THIS SYS IS
NOWHERE AS DYNAMIC AS THAT ONE WAS...BUT IT IS STILL JUICY.
TFG
From Raleigh NWS:
LATEST MODEL GUIDANCE SHOWS A WARMER SOLUTION THAN THE
PREVIOUS 5 RUNS. THIS WARNING TREND IS REFLECTED IN THE SURFACE'S
LOW TRACK NOW A LITTLE FURTHER TO THE NORTHWEST SWINGING THROUGH
COASTAL SOUTH CAROLINA. THESE FACTORS SUGGEST A FORECAST SOLUTION A
LITTLE LESS PESSIMISTIC WITH REGARD TO THE AMOUNT OF SLEET
ACCUMULATION AND ICE ACCRETION FROM FREEZING RAIN. HOWEVER IN THOSE
18 COUNTIES WHERE THE WINTER STORM WARNINGS REMAIN IN EFFECT IN OUR
CWA...THE EXPECTATION OF POWER LINE AND TREE DAMAGE AND HAZARDOUS
TRAVEL STILL APPLY.
KK/JC
From Wichita, KS NWS:
FCST SNDGS DON'T MOISTEN SFC-850MB LYR TIL LATE THIS
AFTN & POP GAMEPLAN REFLECTS THIS. POP GRADIENT APR'D KOSHER FOR MOST
PART W/ ONLY CHG BEING TO LWR POP ACRS CNTRL KS SLGTLY TO 20% DUE LTR
ARVL OF MSTR.
ES
From St.Louis NWS:
THE ETA AND THE GFS APPEAR TO HAVE INITIALIZED WELL TONIGHT AND THEY
CLOSELY RESEMBLE EACH OTHER OUT TO ABOUT 15 MINUTES...
ACTUALLY THEY'RE NOT THAT DISSIMILAR IN THE LARGE SCALE...BUT THE
DEVIL WILL BE IN THE DETAILS FOR THE NEXT THREE DAYS.
CARNEY
From Louisville, KY NWS:
WE HAVE NOTED THAT THE GFS MODEL RUNS CONTINUE TO SAG THE
TRACK OF THE SFC LOW OFF TO THE SE...WHICH RAISES THE SPECTOR OF
MORE FROZEN PCPN...BUT HARD TO SAY. CERTAINLY IF THE HVY PCPN COMES
TO FRUITION...MORE FLOODING COULD BE IN THE CARDS.
STUREY
From Upton, NY NWS:
FOLLOWING COORDINATION WITH HPC...WILL TRACK THIS SYSTEM SOUTH OF
THE OKX REGION AND LET IT BOMB OFF THE DELMARVA. THIS KEEPS REGION
IN NE FLOW WITH THE WARM FRONT STAYING WELL SOUTH. INTENSE
ISENTROPIC LIFT AND WITH THE TROPICAL CONNECTION...RESULTS IN A LOT
OF PCPN. CONCERN IS INCREASING THAT THIS WILL NOT BE A LIQUID EVENT.
LOOKING AT SOME GFS SOUNDING NORTH OF US INDICATES POTENTIAL FOR A
DEEP ISOTHERMAL 0 DEGREE C LAYER. FOR NOW...WILL START THE PCPN AS A
MIXTURE AND GRADUALLY CHANGE IT OVER TO MAINLY RAIN. WITH THE LACK
OF A SFC HIGH TO THE NORTH...ICE STORM IS THE MAIN CONCERN HERE WITH
HEAVY SNOW POSSIBLE NW OF NYC NOT OUT OF THE QUESTION.
TONGUE
From Burlington, VT NWS:
THE SYS FOR SAT NOW APPEARS TO
BE A COASTAL...SO WILL LEAN BACK TOWARDS MORE SOLID PCPN ACRS THE FA
THEN...WHO KNOWS.
MURRAY
From Corpus Christi, TX NWS:
SIGNIFICANT UPPER-LEVEL
DIFFLUENCE/PACKETS OF SHORTWAVE ENERGY/JET DYNAMICS/BOUNDARY LAYER
FORCING/SOUTHEAST LOW-LEVEL JET SUPPORTS LIKELY/CATEGORICAL POPS.
EVOLVING SCENARIO HAS THE HALLMARKS OF A POTENTIAL HEAVY RAIN EVENT.
BB
From Brownsville, TX NWS:
FORECAST CONFIDENCE WILL BE LOW THRU
FRI PM...AS CWA WILL BE ON THE EDGE OF SOME TIGHT QPF GRADIENTS.
ALSO...AM SUSPICIOUS OF LOW QPF VALUES CARRIED BY MOS GUIDANCE THRU
FRI PM. MOIST SW FLOW OFF THE GULF...ALONG WITH EJECTING SOUTHERN
STREAM VORTS...WILL SUPPORT SOME SHRA AND POSSIBLE TSRA ACTIVITY
OVER THE CWA TONIGHT. BELIEVE HIGHEST POPS WILL BE OVER THE NWRN CWA
NEAR THE REGRESSING PREFRONTAL TROF. STILL BELIEVE SEVERE WX
POSSIBLE OVER THE CWA FRI PM AND EVENING WITH VERY POWERFUL H5 SYS
PROGGED TO EMERGE FROM NE MX. PREVIOUS SIMILAR EVENT WAS POORLY
HANDLED BY THE MODELS.
62
From Dallas/Fort Worth NWS:
I DID LEAVE COLD TEMPERATURES IN FOR MONDAY AND
TUESDAY...PER COORDINATION WITH SURROUNDING OFFICES...BUT I PULLED
THE POPS. IF THE GFS VERIFIES...WE WILL BE MUCH TOO DRY FOR PRECIP.
IF THE ECMWF/NOGAPS VERIFY...WE WILL FACE SOME PRECIP CHANCES BY
LATE TUESDAY WITH RETURN FLOW SETTING UP. OF COURSE...WE WOULD ALSO
BE WARMER WITH THE LACK OF AMPLITUDE IN THE FLOW. STAY TUNED!
SS
From Jackson, MS NWS:
HISTORICALLY...IN ORDER TO GET THE LOWER MS RIVER VALLEY IN THE
TEENS...I.E. NEAR RECORD COLD DURING THIS TIME OF YEAR...A
CLASSIC...STRONG POSITIVE PNA PATTERN MUST BE IN PLACE WITH A STRONG
RIDGE OVER THE WESTERN US AND A DEEP TROUGH IN THE CENTRAL/EASTERN
US. AT THIS POINT THE MODELS DO NOT INDICATE THIS SIGNAL. IN FACT
THE PATTERN PRESENTED BY ALL AVAILABLE GUIDANCE SUGGESTS A MORE
PERTURBED PATTERN.
GAGAN
From Boise, ID NWS:
A VERY INTERESTING ACTIVE COUPLE DAYS OF WEATHER FOR THE PACIFIC
NORTHWEST AND INTERMOUNTAIN REGION IS ON THE SLATE! A SERIES OF
PACIFIC SHORT WAVES WILL MOVE ACROSS THE AREA THROUGH SATURDAY
MORNING BRINGING THE REGION BACK INTO REALITY CHECK MODE ESPECIALLY
FOR THE CENTRAL MOUNTAINS WHERE HEAVY SNOW IS A DISTINCT
POSSIBILITY. TRAJECTORY FLOW WITH THESE WAVES APPEARS TO BE VERY
FAVORABLE FOR ADDITIONAL LIFT AND HENCE QPF/SNOWFALL. LOCAL OFFICE
RESULTS AND STUDIES OF PAST EVENTS SUGGEST HEAVY SNOW WITH THESE
INBOUND FEATURES...NEW MRF AND EURO SHOW A
WINDY COLD DRIER NORTHWEST FLOW OVER THE AREA DURING THE WEEKEND
WITH SOME MODIFIED ARCTIC AIR MAKING IT'S WAY DOWN OVER THE CENTRAL
MOUNTAINS. ALTHOUGH NOT A FULL DELIVERY OF ARCTIC AIR BY ANY MEANS,
IT SHOULD TURN SHARPLY COLDER BY SUNDAY AND LAST THROUGH THE EARLY
PART OF NEXT WEEK. IN FACT IF MODELS PROVE CORRECT, WE MAY SEE SOME
THE COLDEST WEATHER OF THIS ENTIRE SEASON DESPITE THE FACT OF LONGER
DAYS WITH ADDITIONAL SUNSHINE AND SUN ANGLE.
G.SKARI
From Bimringham, AL NWS:
LATEST SURFACE ANALYSIS SHOWS PRESSURE TROF ACROSS NORTH CENTRAL
ALABAMA (CAN'T REALLY CALL IT A FRONT...SINCE IT IS CURRENTLY WARMER
IN HSV THAN MGM)...ATTACHED TO A LOW VICINITY OF JAN... WITH HIGH
PRESSURE CENTERED OVER THE OH VALLEY...MODEL FORECASTS INDICATE SURFACE TROF (IT MAY EVEN REGAIN FRONT
STATUS) WILL MOVE BACK NORTH LATER TODAY...ALTHOUGH THAT MAY BE A
SLOWER THAN EXPECTED PROCESS...I MAY BE
BIASED BY MY MEMORY OF LAST WEEK'S EVENT...WHEN MUCH OF THE PRECIP
STAYED TO THE NORTH OF OUR CWA UNTIL RIGHT BEFORE COLD FROPA. BUT I
HAVE THIS NAGGING FEELING THAT THE MODELS ARE AGAIN OVERDOING THE
EXTENT OF THE MOISTURE AND PRECIP INTO CENTRAL ALABAMA ON FRIDAY...I
JUST DON'T SEE THE FORCING THAT WOULD PRODUCE THE LARGE AREA OF 90+
PERCENT MEAN RH AND RESULTANT QPF. I'M THEREFORE GOING TO BACK OFF
ON POPS...ESPECIALLY IN THE SOUTHERN PART OF THE CWA...DURING THE DAY
FRIDAY.
From State College, PA NWS:
WHAT A DIFFERENCE A DAY MAKES...WEEKEND STORM LOOKS WARMER AND
WETTER AGAIN...IT LOOKS LIKE FLOOD THREAT HAS INCREASED ONCE AGAIN...ESPECIALLY
OVER LOWER SUSQUEHANNA VALLEY. RULE OF THUMB FOR SUSQUEHANNA RIVER
IS 50000 CFS AT HARRISBURG BREAKS UP ICE. CURRENT FORECAST FROM RFC
CALLS FOR 80000 CFS BY MONDAY MORNING. LOOKS LIKE ICE WILL BREAK UP
AND MOVE INCREASING POTENTIAL FOR ICE JAM FLOODING ALONG SUSQUEHANNA
AND TRIBUTARIES.
DIRIENZO
From Pueblo, CO NWS:
OLD MAN WINTER NOT GIVING UP ACROSS THE AREA...AS CURRENT WATER
VAPOR IMAGERY AND UPPER AIR DATA HAS POLAR VORTEX SPINNING JUST SOUTH
OF HUDSONS BAY...WITH POTENT SHORT WAVE TROUGH CURRENTLY PINWHEELING
AROUND LOW...WITH TROUGH AXIS LYING ACROSS THE NORTHERN ROCKIES...
KEEPING WEST TO NORTHWEST FLOW ALOFT ACROSS THE AREA
PETERSEN
From Tulsa, OK NWS:
WE DID A GOOD JOB YESTERDAY OF IDENTIFYING THE AREA OF HEAVIEST
SNOWFALL FOR TODAY (ALONG THE OK/KS BORDER)...BUT UNFORTUNATELY WE
MISSED THE SNOWFALL TOTALS BY NEARLY A FACTOR OF 2.
18
From St. Louis NWS:
BACK EDGE CONTINUES TO
KEEP TIME FRAME OF SNOW EVENT AROUND 6-7 HOURS AND IT LOOKS LIKE THE
HVY SNOW PLUME STRETCHED ACROSS SWRN MO WL MOV ENEWD INTO SRN PTN
CWA IN WRNG AREA...OUR UNKNOWN SNOW CAPITAL. (BET THAT AREA HAS HAD
OVER 40 INCHES OF SNOW THIS YEAR)
PEDIGO
From Jackson, KY NWS:
MOTHER NATURE CONTINUES TO USE EAST KENTUCKY TO DEMONSTRATE HER
POWER. A SOMBER AND TRAGIC EVENING AS A PROBABLE TORNADO IN OUR HOST
COUNTY HAS CAUSED TWO CONFIRMED DEATHS.
GREIF
From State College, PA NWS:
WAVE LENGTHS BETWEEN 2 SIGNIFICANT STORMS DON'T GET MUCH SHORTER
THAN WHAT WE SEE AT PRESENT.
LAMBERT
From Tulsa, OK NWS:
LOOKS LIKE ITS GOING TO BE A VERY MESSY WEEK.
06
From Norman, OK NWS:
THE EXPECTED QPF AMOUNTS DO NOT WARRANT AN
ADVISORY AT THIS TIME...HOWEVER THAT IS NOT TO SAY THAT TRAVEL WILL
NOT BE HAMPERED. WITH SUCH COLD TEMPERATURES...IT IS POSSIBLE FOR
SIGNIFICANT TRAVEL PROBLEMS TO DEVELOP QUICKLY IF PRECIP CAN FALL
HARD OR LONG ENOUGH.
JAMES
From Lubbock, TX NWS:
THE GFS MODEL DID MUCH
BETTER WITH THIS ROUND OF ARCTIC AIR...I SHOULD HAVE BELIEVED IT.
TINSLEY
From Austin/San Antonio, TX NWS:
SURGE OF ARCTIC AIR EXPECTED TO PREVAIL THRU TONIGHT. THE LATE
FEB 2003 COLD OUTBREAK COMES NEARLY A YEAR AFTER THE LATE FEB 2002
COLD OUTBREAK. THE 2003 EPISODE IS CLOUDIER AND HAS THE CHC OF
PCPN.
08/19
From NCEP's short range forecast discussion:
A VERY ACTIVE SOUTHERN STREAM WILL CONTINUE TO DOMINATE
THROUGH THE SHORT RANGE PERIOD. THE MODELS INDICATED FEW
SIGNIFICANT DIFFERENCES WITH THE UPPER AIR FEATURES...BUT DID
SHOW SOME INCONSISTENCIES WITH THE SURFACE FEATURES DURING
THE LATER PERIODS. AT THE MID AND UPPER LEVELS...THE CLOSED LOW
OFF THE SOUTHERN CALIFORNIA COAST WILL MOVE TO NORTHERN
ARIZONA BY WEDNESDAY MORNING AND BECOME MORE OF AN OPEN
TROUGH. THIS FEATURE WILL THEN CONTINUE MOVING EAST TO
SOUTHERN PLAINS BY THURSDAY MORNING...AT THE SURFACE...ON
DAY ONE...STATIONARY FRONTAL BOUNDARY WILL EXTEND ACROSS
SOUTHEAST STATES INTO GULF OF MEXICO...AND WIND ACROSS
SOUTHWEST. BY DAY TWO...INITIAL SURFACE LOW WILL MOVE OFF MID
ATLANTIC COAST...WITH ANOTHER LOW DEVELOPING OVER NORTHERN
GULF MOVING TO SOUTHEAST ALABAMA BY END OF PERIOD.
KOSIER
From Los Angeles/Oxnard, CA NWS:
ALL 00Z MDLS INITILIZED HORRIBLY...AND TO MAKE MATTERS WORSE THE 06Z
ETA WAS EVEN MORE WRONG. NOT USING ANY MDL FOR SHORT TERM FORECAST AND
WILL BASE ON SATELITE...DAYS SIX AND SEVEN...I LOOKED AT 5 DIFFERENT MDLS AND GOT 5 VERY
DIFFERENT SOLUTIONS.
RORKE
From Dallas/Ft. Worth, TX NWS:
FIRST...WE WERE RUN OVER BY A QUICK HITTING SYSTEM YESTERDAY. IT
EXCEEDED THE MAGNITUDE WE FIRST THOUGHT IT WOULD HAVE.
26
From Little Rock, AR NWS:
TRYING TO DIG OUT THIS MORNING FROM ALL THE SNOW. AROUND FIVE INCHES
HERE AT THE OFFICE...WITH AS MUCH TEN INCHES LESS THAN 20 MILES
WEST OF HERE.
57/46
From Wakefield, VA NWS:
MDLS HVN'T BEEN ABLE TO GRAB ONTO ANY ONE SYS AND SAY - THIS IS
THE ONE FOR A STM - DURG THE PAST FEW DAYS...NOW THEY ARE GENERATING
DECENT PCPN OUT OF PURE L/M LVL WAA WED...THERE HV BEEN CASES IN THE PAST OF JUST
PURE L/M LVL WAA PRDCG PROLIFIC SNWFALL IN THESE PTS (MID FEB
1989)...WL PLAY IT CAUTIOUSLY RIGHT NOW...W/ CONFIDENCE VRY LO.
25
From Jackson, KY NWS:
ETA SUGGESTS A GOOD DEAL OF QPF...ESPECIALLY
SOUTH. I AM A BIT SUSPECT OF THIS CONCERNING THE SHALLOWNESS AND
QUICKNESS OF THE WAVE. ALSO...SOME WRAP AROUND MAY PROVIDE SOME
SMALL ACCUMULATION IN THE NORTH...BUT AT THIS TIME...IT SEEMS THIS
MOISTURE WILL RING OUT AS MAINLY RAIN ON THURSDAY...ONLY A FEW
DEGREES AWAY FROM MAJOR SNOW...BUT THATS THE WAY IT GOES.
HEINLEIN
From Key West, FL NWS:
LATEST GFS LOSES WHAT LITTLE INTERGRITY WAS LEFT WITH WEAK FRONT
APPROACHING ON THURSDAY...AND NOW SHOULD WASH OUT OVER THE
PENINSULA.
JR
From Baltimore/Washington NWS:
HV RECEIVED SVRL QUSTNS CONCERNING WATER LVLS AT WISCONSIN AVE GAGE
IN GEORGETOWN. CERTAINLY APPEARS THAT THE WORST IS OVER...AS LAST
HIGH TIDE THE WATER CRESTED AT 5.5 FEET WHICH IS JUST BELOW THE
LOWEST IMPACT STMT PT. THEY PLAN TO LV THE BARRIERS UP FOR ONE MORE
TIDAL CYCLE AND THEN TAKE DOWN - THIS ALLOWS THE RESTAURANTS THERE
TO OPEN FOR BIZ.
RDH
From Twin Cities/Chanhassen, MN NWS:
FORECAST JET
ENERGY SHOWS THE CHARACTERISTIC "COUPLING" THAT DIAGNOSES A STRONG
AND VIGOROUS EXTRATROPICAL CYCLONE AND THIS MAY VERY WELL LEAD TO A
SPRING SNOWSTORM FOR OUR NECK OF THE WOODS. WE HAVE HIT THE
THURSDAY/FRIDAY SYSTEM QUITE HARD.
From Huntsville, AL NWS:
MORE SIGNIFICANT SYSTEM LOOKS TO COME INTO PLAY BY END OF WEEK...APPEARS THAT MARCH WILL GO OUT LIKE A LION.
BRIDENSTINE
From Paducah, KY NWS:
NOW SATURDAY IS QPF-FREE WITH ANY LIGHT
MEASURABLE PRECIP HOLDING OFF TIL SATURDAY NIGHT. MOISTURE IS
PROGGED TO BE CONFINED TO THE 1000-850MB LAYER. 1000-850MB THICKNESS
AROUND 1280 M RANGE...SUGGESTING SNOW. HOWEVER...AVAILABILITY OF
ICE CRYSTALS MAY BE LACKING YIELDING MORE OF A SUPERCOOLED DROPLET
EVENT WITH DRIZZLE OR FREEZING DRIZZLE BEING THE OUTCOME DEPENDING
UPON SURFACE TEMPS.
DFS
From Morristown, TN NWS:
ENOUGH COLD AIR ON THE BACKSIDE TO PRODUCE SNOW FOR THE HIGHER
ELEVATIONS SUNDAY. WILL BE A REAL CHANGE COMPARED TO WHAT WE HAVE
BEEN ENJOYING LATELY.
PARKER
From Dallas/Fort Worth NWS:
MID-LEVEL DRY LAYER
IDEAL FOR DOWNBURSTS...AND 40-KT SPEED SHEAR WITH PASSING MID-LEVEL
JET MAX IN AREA OF HIGH CAPE MAY ALLOW FOR A FEW ROTATING STORMS
CAPABLE OF PRODUCING LARGE HAIL. THAT WAS A RUN-ON SENTENCE.
25
From Houston/Galveston NWS:
STILL NO TSTMS...BUT
CU FIELD IS BEGINNING TO BLOSSOM...SO CONVECTION SHOULD BEGIN IN THE
NEXT COUPLE OF HOURS IN THE VICINITY OF THE BOUNDARY.
33/45
From Twin Cities, MN NWS:
THIS SYSTEM HAS BEEN VERY DIFFICULT TO WORK WITH...IT WILL BE PROBLEMATIC WHEN SNOW
ACCUMULATIONS WILL ICE UP ROADWAYS.
From Lincoln, IL NWS:
METEORITE BURN-UP WITNESSED ACROSS ILLINOIS JUST BEFORE MIDNIGHT.
THIS CAUSED AN UNUSUAL BURST OF PHONE CALLS OVERNIGHT...BUT WILL
HAVE NO IMPACT ON EXPECTED WEATHER OVER COMING DAYS.
PLAHMER
From Gaylord, MI NWS:
WE SEE A PROGRESSIVE
UPPER RIDGE MOVING IN WED/THURSDAY. MODELS IN PRETTY GOOD AGREEMENT
ON THIS SCENARIO...THOUGH THE CANADIAN IS ENOUGH OF AN OUTLIER TO
KEEP ME FROM GOING WITH A FULL-BORE WARMING TREND JUST YET.
BAK/ZOLTOWSKI
From Key West, FL NWS:
VERY STRONG CELL OFFSHORE OF OCEAN REEF. THIS CELL IS
MOVING INTO THE EAST SOUTHEAST LOW LEVEL INFLOW AND HAS GOOD
DIVERGENCE ALOFT. THESE FACTORS HAVE PRODUCED A RARE FIND...AN
ACTUAL SUPERCELL THAT IS PROBABLY BOUNCING A TORNADIC WATERSPOUT TO
THE WATER AT TIMES.
STRAHAN
From Blacksburg, VA NWS:
DYNAMICS
COMING TOGETHER NICELY TO PRODUCE THE POTENTIAL FOR SEVERAL INCHES
ACROSS THE HIGHER ELEVATIONS THIS MORNING...WOULD NOT BE SURPRISED
TO SEE 6-8 INCHES ON SOME PEAKS. WARMER GROUND AND LOW WATER TO
SNOW RATIO WILL HOLD ACCUMS DOWN AT LOWER ELEVATIONS...RAIN SHUD MIX WITH AND CHG OVER
TO SNOW EAST OF THE MTNS TODAY...BUT WILL BE VERY HARD TO GET
SIGNIFICANT ACCUMS...RAIN HAS CHANGED OVER TO SNOW IN DAN PAST 30 MIN...SEVERAL REPORTS >6" IN MONTGOMERY...GILES...MERCER...
WATAUGA COUNTIES WITH LARGE TRESS LIMBS BREAKING FM THE WEIGHT OF
THE WET SNOW.
JJ/JDS
From Greenville/Spartanburg, SC NWS:
CURRENT FEELING IS THAT WARNING CRITERIA
SNOWFALL ACROSS THE SOUTHERN NC MNTNS WILL BE A CLOSE CALL AT BEST.
HOWEVER...FRONTOGENETICAL FORCING WILL BE QUITE STRONG ACROSS THIS
AREA THROUGH 15Z...WITH BANDING/CONVECTIVE PRECIP POSSIBLE. THIS
COULD DUMP A HEAVY AMOUNT OF SNOWFALL IN A SHORT PERIOD OF
TIME...ESPECIALLY IN AREAS NEAR THE BLUE RIDGE. THEREFORE...WILL
MAINTAIN THE WARNING FOR ALL OF THE NC MNTNS...WITH 2-4" IN THE
SOUTHERN AND CENTRAL MNTNS...AND 3-6 NORTH. THE HIGHEST ELEVATIONS
COULD RECEIVE AS MUCH AS TWICE THOSE AMOUNTS
LANE
From Wakefield, VA NWS:
WINTER'S LAST GASP? LET'S HOPE SO...AS MAR ABT READY TO WIND
DN...AND APR ON THE WAY.
25
From Jacksonville, FL NWS:
THICKNESS VALUES PRETTY DARN LOW AT 1320 M
OR LESS AND 850 TEMPS ARE BELOW 0C ! WILL GO BELOW GUIDANCE BUT
GIVEN STRONG INSOLATION FOR BEING ALMOST APRIL WON'T GO TOO FAR
BELOW IT. CALM WINDS AND MOSTLY CLEAR SKIES WILL ALLOW DECOUPLING
AND MAY SEE FREEZING TEMPS FOR SOME AREAS IN NE FL AND SE GA. NO,
THIS IS NOT NOT AN APRIL FOOLS JOKE! HIGH PRES CENTER PROGGED TO BE
NEAR SRN COUNTIES 12Z TUE. DON'T THINK JAX WILL SEE FREEZE TEMPS
BUT INTERESTING TO NOTE LATEST FREEZE FOR THE AREA WAS MARCH 31,
1964.
SHASHY
From Portland, OR NWS:
FRONT SLAMS INTO COAST LATE TUE
AND MOVES ACROSS AREA TUE NIGHT WITH STRONG OROGRAPHIC COMPONENT.
SIGNIFICANT SNOW ACCUMULATIONS LIKELY CASCADES. LOWEST SNOW LEVELS
TUE NIGHT AND WED MORNING WILL GIVE REAL THREAT OF STICKING SNOW TO
LOWER FOOTHILLS AND COAST MOUNTAINS.
KOSOVITZ
From Seattle, WA NWS:
MODELS SHOW A DEFINITE LACK OF CONSISTENCY BETWEEN EACH
OTHER AND FROM RUN-TO-RUN FROM SATURDAY ON...SUNDAY COULD BE A LOT LIKE SATURDAY...SO FOR THE
SAKE OF SIMPLICITY WILL LUMP THE TWO TOGETHER.
KAM
From Albuquerque, NM NWS:
TO SUM UP...A
LOT OF WEATHER FEATURES TO TALK ABOUT NEXT 7 DAYS BUT NOT MUCH IN
THE WAY OF PRECIP.
JWS
From Marquette, MI NWS:
MAIN FORECAST CONCERN IS SNOW POTENTIAL LATE TNGT AND WED...AND
THAT'S NO JOKE.
JKL
From Key West, FL NWS:
MARCH 2003 WENT OUT LIKE A LION...WITH A GOOD NORTHERLY BLOW AND
RECORD COOL TEMPERATURES. HOWEVER...THE MONTH WAS STILL THE SECOND
WARMEST EVER
K. KASPER
From Huntsville, AL NWS:
I'LL REITERATE WHAT I SAID YESTERDAY, "THIS IS ABOUT AS INNOCUOUS A 4
DAY PERIOD AS YOU WILL EVER SEE ACROSS THE TN VALLEY IN SEVERE WX
SEASON."
JDG
From Quad Cities, IA IL NWS:
SNOW WILL BE HEAVY
AT TIMES TONIGHT AND WITH STRONG DYNAMICS AND STEEP H7-H5 LAPSE
RATES SOUTH OF INTERSTATE 80...COULD SEE SOME THUNDERSNOW...BUT WILL
NOT BURDEN ZONES WITH WORDING AT THIS TIME.
DLS
From Chicago, IL NWS:
HEAVY SNOW A TOUGH CALL. THINGS THAT WOULD FAVOR HEAVY SNOW INCLUDE
VERY STRONG DYNAMIC FORCING...STRONG VV THROUGH SATURATED LAYER AT
-15C...AND THE POTENTIAL FOR CONVECTION. LIMITING FACTORS WOULD BE
INITIAL DRY AIR IN LOW LEVELS THAT WILL DELAY ONSET OF SNOW...WARM
GROUND MAY CAUSE SOME MELTING...AND POSSIBILITY FOR SOME MIXED
PRECIP.
ALLSOPP
From Lake Charles, LA NWS:
AS HOUSTON INDICATED IN THEIR DISCUSSION...ALSO CONFIDENT THAT I'M
NOT AT ALL CONFIDENT THAT SEVERE WEATHER ON ANY SCALE OTHER THAN
ISOLATED FOR THIS AFTERNOON. NEGATIVE FACTORS FOR NO SEVERE WEATHER
INCLUDE...NO LOW LEVEL FORCING MECHANISM...VAPOR IMAGERY AND MODELS
DON'T SUPPORT ANY MAJOR UPSTREAM ENERGY FOR THIS AFTERNOON COMING
IN OUR CWA.
From Birmingham, AL NWS:
WHEN'S IT GOING TO END? I MENTIONED YESTERDAY THE FRONT ON MONDAY
WOULD GO THRU RATHER HARMLESSLY...THINGS HAVE CHANGED. IT NOW LOOKS
AS THOUGH THE FRONT WILL STALL OUT ACROSS THE CENTRAL PART OF THE
STATE WITH SEVERAL FORCING DYNAMICS ROLLING BY OVERHEAD. THIS WILL
PROLONG THE STRONG TO SEVERE POTENTIAL THRU PROBABLY TUESDAY
AFTERNOON. I'M JUST THE MESSENGER FOLKS.
JONES
From Upton, NY NWS:
I WOULD EXPECT AN AVERAGE OF
AT LEAST 6 INCHES EVERYWHERE...WITH UP TO 1 FOOT...WHERE MESOSCALE
BANDING DEVELOPS AND WHERE SLEET DOESN'T HOLD DOWN THE AMOUNTS
SLIGHTLY. I WILL THEREFORE UPGRADE THE WINTER STORM WATCHES TO
WARNINGS ACROSS OUR ENTIRE CWA. AS NE WINDS INCREASE TO 20 TO 30
MPH...NEAR BLIZZARD CONDITIONS WILL OCCUR.
GC
From Buffalo, NY NWS:
FINALLY...RIDGING
BRINGS MORE SEASONABLE WX NEXT SUN/MON...COULD THIS BE IT? SPRING?
FINALLY??
MCLAUGHLIN
From Upton, NY NWS:
DRY PUNCH SEEN ON WTR VPR STLT
IMAGERY WELL UPSTREAM ALSO SUGGESTS THAT DRYING WL BE MOVING
INTO RGN RIGHT BHND HVST PCPN AND WE'VE CERTAINLY SEEN THIS A
FEW TIMES IN THE PAST...BRIEF OCCURRENCE AT END OF PRESIDENT'S
DAY STORM CIRCA 2003. THUS...WL CUT DOWN TNGT'S SNOWFALL AMTS
EVER SO SLGTLY SLGTLY AND MENT PSBL ENDING AS BRIEF PD OF FZDZ
ALL ZNS.
REYNOLDS
From Huntsville, AL NWS:
AN UPPER LOW MEANDERS
AROUND THE DEEP SOUTH FOR A FEW DAYS. TO ME...THIS SCENARIO MEANS A
LOT OF CLOUD COVER...COLD TEMPERATURES...AND THE PROSPECT FOR SOME
INSTABILITY TYPE SHOWERS. ALL TOLD...THE CHANCES DO NOT LOOK THAT
GREAT...AND I CAN'T PINPOINT WITH ANY CERTAINTY WHO MIGHT GET WHAT
WHEN. SO WILL BROADBRUSH SLIGHT CHANCES ACROSS THE FORECAST AREA
TUESDAY NIGHT THROUGH THURSDAY.
JE
From Jacksonville, FL NWS:
TODAY...SOUTHERN STREAM HAS BECOME ACTIVE AGAIN. MODELS HISTORICALLY
DO NOT HANDLE THIS WELL DUE TO LACK OF UPSTREAM DATA FOR OUR AREA.
SO WON'T BE TOO DETAILED...BUT WE ARE IN FOR A ROUGH AFTERNOON.
..ANY
OUTFLOW COLLISION WILL KICK OFF SOME CONVECTION TODAY AS ATMOSPHERE
IS IMPRESSIVELY UNSTABLE FOR THIS TIME OF YEAR.
WELSH/CARROLL
From New Orleans, LA NWS:
...SEVERE THUNDERSTORM AND FLOOD POTENTIAL WILL CONTINUE...
...TODAY'S SEVERE THUNDERSTORM OUTBREAK IS LIKELY TO BE THE WORST
THIS CALENDAR YEAR...MESOCYCLONE AND TORNADO
VORTEX SIGNATURES ON RADAR HAVE BEEN IMPRESSIVE AT TIMES...BUT THERE
HAVE BEEN NO CONFIRMED REPORTS OF TORNADOES. WITH THE SOUTHWARD
PROPAGATION OF THE OUTFLOW BOUNDARY AND THE 30 KNOT MOVEMENT OF
INDIVIDUAL CELLS...THERE HAVE BEEN NO REPORTS OF FLASH FLOODING AS
OF YET.
22
From Quad Cities IA IL NWS:
THERE IS AN OLD ADAGE THAT SAYS BEWARE OF EASTERLY FLOW. SUCH WAS
THE CASE WITH THIS SYSTEM. FIRST...IT TOOK LONGER TO SATURATE THE
LOWER LEVELS WHICH CUT DOWN OF THE SNOW AMOUNTS. SECOND...FOR ONCE
THE AVN WAS CORRECT WITH ITS MUCH FARTHER NORTH SOLUTION THAN THE
UKMET...WHICH NORMALLY IS MORE SKILLFUL THAN THE AVN. LASTLY...WE
ARE IN MODERATE TO SEVERE DROUGHT AND NATURE OBVIOUSLY WANTS TO
CONTINUE THAT TREND.
SF
From Tallahassee, FL NWS:
MODELS AGREE THAT 500 MB
TEMPS IN THE -20 TO -25 DEGREE C RANGE WILL MOVE OVER THE AREA. WET
BULB ZERO HEIGHTS WILL DROP BELOW 11 KFT AT TLH BY WED AFTERNOON AND
BELOW 9 KFT AT DHN. THE ASSOCIATED INSTABILITY WILL ENAHANCE LIFT
FOR SHOWERS IF SUFFICIENT MOISTURE CAN WRAP AROUND THE DEPARTING
SURFACE LOW. AT THIS TIME, IT LOOKS LIKE THIS WILL BE THE CASE WITH
HAIL A THREAT IN ANY ISOLATED THUNDERSTORMS THAT FORM.
From Birmingham, AL NWS:
THE GFS HAS BEEN CONSISTENT WITH PRINTING OUT WIDE SPREAD
SNOW WEDNESDAY NIGHT INTO THURSDAY MORNING. THE THICKNESS VALUES DO
NOT SUPPORT THIS.
80
From State College, PA NWS:
...YET ANOTHER COMPLEX WINTRY SCENARIO ABOUT TO UNFOLD...
COULD BE 0.10-0.20 OF ICE ACCRETION IN SOME AREAS...MAINLY ON TREES.
AGAIN...AS WITH LAST EVENT...ROADWAYS MAY ESCAPE WITH MERE WETNESS
RATHER THAN ICE...SO DESPITE WINTRY PRECIP...MANY MAIN ROADS MAY BE
JUST FINE. SECONDARY...LESS TRAVELED ROADS COULD BE MORE OF A PROB
FOR WED AM.
KL
From Taunton, MA NWS:
MQE IS NOW UP TO 3RD HEAVIEST WINTER SNOW ACC WITH THEIR 112.3 (2.6
LAST NIGHT). WE HAVE A COUPLE OF SPOTS ON THE CAPE AND ISLANDS
SITTING NEAR 80". AFTER THIS WEEK WE HOPE THAT THIS DOES IT THO
SUCH A WINTER...WOULDNT RULE OUT IP OR A ROBINS SNOW INTERIOR "AFTER"
4/13. IN OTHER WORDS...WE'RE COUNTING ON MORE ICE..IF NOT SNOW THIS
CURRENT WEEK.
DRAG
From Spokane, WA NWS:
TEMPERATURES REMAIN NEAR
CLIMATOLOGY WITH SUNBREAKS PROBABLE MOST LOCATIONS EACH DAY BUT
FUNDAMENTALLY UNSETTLED SPRING TIME REGIME.
FUGAZZI
From Los Angeles, CA NWS:
LOOKS LIKE A VERY COOL WEEK
FOR MID APRIL IN SRN CA.
DANIELSON
From Sacramento, CA NWS:
COOL AIR ADVECTION LOWERED SNOW LEVELS DOWN TO NEAR
3000 FEET OVER NORCAL AND THIS SHOULD PERSIST TODAY AS -7 TO -10C H7
TEMPS REMAIN OVER THE REGION FROM SOUTH TO NORTH. WET BULB ZERO
FORECAST TO HOVER NEAR 4000 FEET AND EVEN SHOWN TO LOWER IN HEAVY
PRECIP TODAY DUE TO LATENT HEAT EFFECTS...POST FRONTAL THUNDERSTORMS WILL POSE
GREATER THREAT OF ROTATION AND HAIL PRODUCTION IN THE SAC VALLEY...HAPPY SPRING WEATHER
AND POWDER HEAVEN.
TARDY
From Bismarck, ND NWS:
RECORD HIGH TEMPERATURES AGAIN FALLING LIKE FRENCH HEAVYWEIGHTS.
HW
From Huntsville, AL NWS:
PRECIP WILL CONTINUE INTO FRIDAY...BUT THE MORE I LOOK AT THINGS THE
MORE I AM FEELING LIKE TONIGHT MAY BE THE BULK OF THE PRECIP. WILL
KEEP LIKELY POPS THOUGH...WITH LEFTOVER BOUNDARIES AND OTHER
ASSORTED INFLUENCES...PLUS COPIOUS MOISTURE.
JE/23
From Birmingham, AL NWS:
AT 18Z...A STRONG MCS HAS DEVELOPED ACROSS NORTHERN ARKANSAS...
SOUTHERN MISSOURI...AND WESTERN TENNESSEE. IF YOU USE THE DISTANCE
SPEED TOOL AND PLACE IT OVER THE SOUTHERN PART OF THE MCS...IT HAS IT
MOVING INTO MY COUNTY WARNING AREA BY 2245Z...ACCORDING TO A QUICK AND DIRTY MSAS ANALYSIS...A
COLD FRONT EXTENDS FROM NY/PA THROUGH IN...IL...AR...AND INTO
SOUTHEAST TX.
80
From El Paso-Santa Teresa, NM NWS:
WARM
TEMPERATURES WILL MEAN DEEP MIXING THUS ALLOWING THE STRONGER WINDS
ALOFT AND COMPLIMENTARY GRADIENTS AT LOW LEVELS TO COMBINE FOR A
VERY WINDY DAY. DRY CONDITIONS AND THE DEEP MIXING, COMBINED WITH
THE SW TRAJECTORY SHOULD LIFT AND RELOCATE MUCH DESERT REAL
ESTATE...AKA BLOWING DUST.
14/BIRD
From Austin/San Antonio, TX NWS:
OUR WEATHER PATTERN HAS BEEN SO DRY RECENTLY THAT WE MAY BE GETTING
TO THE POINT THAT GROUND MOISTURE BECOMES SO SPARSE AS TO PROVIDE A
NEGATIVE FEEDBACK TO PRECIPITATION DEVELOPMENT. THIS RESULTS IN EVEN
DECENT ATMOSPHERIC PERTURBATIONS PRODUCING LITTLE OR NO RAIN AND
EVENTUALLY MAKES THE ATMOSPHERE WARM MORE EFFICIENTLY.
02/18
From Buffalo, NY NWS:
CLIMO...APRIL STATS ARE IN...AND BUF HAS HAD DRIEST APRIL IN 68 YRS
WITH JUST 0.9 INCH...TALK ABOUT TIMING...WE MAY SEE THAT IN NEXT 24
HOURS!
MCLAUGHLIN
From Wichita, KS NWS:
GIVEN COMBO
OF LARGE CAPES, IMPRESSIVE CAPE BLO 3KM AND DEEP SHEAR VALUES, LLVL
STRETCHING WL BE SUFFICENT FOR TORNADOGENESIS ABT ANYWHERE STORMS
FIRE. LARGE CAPES ALSO SUG RAPID DVLPMT AND INTENSIFICATION, AND
ANTICIPATE STORMS WL RAPIDLY BECOME SVR ONCE THEY DVLP.
HOWERTON
From Tulsa, OK NWS:
THE CELL MODE WILL BE
HARD TO CALL AS THE FASTER MID-LEVEL SPEEDS WILL BE OFFSET BY THE
NATURAL SEEDING FROM THE ANVILS. RADAR TRENDS SUGGEST A POSSIBLE HP
EVENT DEVELOPING WITH THESE STORMS.
8
From Fort Worth, TX NWS:
ROUND 2...3...4? COULD BE AS S/SELY WINDS RESUME AND REPLENISH
LOW LVL MSTR OVER N TX. THIS SYSTEM (SIMILAR TO CURRENT ONE) EJECTS
TOWARDS MID MS VALLEY LATE THURS INTO FRI WITH DRYLINE DRAGGING
CLOSE AGAIN BY THIS TIME AND YET ANOTHER SHOT...AS DEEP MID LVL
TROUGH DIGS OVER THE ID/NV/CA. IT IS MAY...SO STAY TUNED.
05
From Grand Rapids, MI NWS:
THIS THE MOST UNFAVORABLE TIME OF DAY FOR TORNADOES AND
CLIMATOLOGICALLY SPEAKING NIGHTTIME TORNADOES IN MI ARE EXTREMELY
RARE.
LAURENS
From Sacramento, CA NWS:
MODELS ARE NATURALLY PROGRAMMED
TO DRY THINGS OUT THIS TIME OF YEAR SO IT MAY BE A STRUGGLE BETWEEN
INITIAL CONDITIONS AND CLIMATOLOGY. SAC NEEDS ANOTHER FOUR INCHES
TO REACH "NORMAL" RAINFALL FOR THE WATER YEAR...
From State College, PA NWS:
INITIAL THOUGHTS ARE THAT THE ABSCENCE OF ACTIVITY OVER MOST OF OH
YESTDY WILL BE A HARBINGER OF WHAT MAY HAPPEN OV OUR CWA TODAY. NOT
ONLY ARE WE IN THE DYNAMICALLY POOR REGION OF THE SYNOPTIC
SITUATION...BUT WE HAVE THE ADDED "BENEFIT" OF BEING COLD AIR DAMMED...THIS SW/WRLY FLOW ALOFT CERTAINLY IS A PATTERN THAT WL KEEP US FROM
THINKING ABOUT DROUGHT FOR A FOURTH OR FIFTH STRAIGHT YEAR - AT
LEAST FOR A LITTLE WHILE.
DANGELO
From Charleston, SC NWS:
UNTAPPED POTENTIAL CONTINUES ACROSS THE CWA. THIS HAS BEEN THE
STORY OVER THE PAST FEW DAYS...WITH LACK OF SIGNIFICANT TRIGGER
KEEPING CONVECTION AT A MINIMUM...S/W TROFS...AMPLE MOISTURE...SW UPPER JET...AND NUMEROUS
BOUNDARIES HAVE ALL LED TO THIS LONG WEATHER EVENT.
PY/JH
From Mobile, AL NWS:
MORNING RAOB FOR NEW ORLEANS INDICATED A
LOADED GUN APPEARANCE AND THE VERDICT HERE WAS THAT WITH ANY KIND OF
VERTICAL MOTION THINGS COULD LIGHT UP IN A HURRY. THE MODELS WERE
MIXED ON THAT IMPETUS EARLY ON IN THE FORECAST...WE WERE WRINGING
HANDS FOR A FEW HOURS BUT IN SPITE OF THE INSOLATION...THINGS NEVER
DID QUITE COOK OFF.
77
From Shreveport, LA NWS:
WELL...NEW DAY NEW WATCH...FORTUNATELY IT SEEMS TONIGHT IS THE LAST
BIG STAND OF THREATENING WEATHER.
17
From Wichita, KS NWS:
TO SAY THE WX PTRN IS ACTIVE MAY BE AN UNDERSTATEMENT.
13/DARMOFAL
From Norman, OK NWS:
...POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK INCLUDING
SUPERCELLS AND TORNADOES ACROSS THE CENTRAL THIRD OF OKLAHOMA DURING
THE NEXT 3-9 HOURS...
MILLER
From Wichita, KS NWS:
BY 06Z FRI, MOST OF THE ACTIVITY SHUD BE EXITING THE AREA AND MOVING
INTO WESTERN MO, WHO NEEDLESS TO SAY DOEN'T NEED ANY MORE SVR WX.
KETCHAM
From Omaha, NE NWS:
TEMPS WERE IN THE
LOWER 90S WEST OF THE DRYLINE AND DEWPOINTS WERE IN THE LOWER
TO MID 70S AHEAD OF THE DRYLINE...WOW.
MILLER
From Glasgow, MT NWS:
TILT-A-WHIRL UPPER PATTER WITH MASSIVE UPPER LOW/TROF OVER WESTERN
NORTH AMERICA AND INBEDDED LOWS CIRCULATING AROUND IT.
CB
From Blacksburg, VA NWS:
FINALLY A LITTLE SUN. AFTER DAYS OF DEBRIS CLOUD WE GET TO PARTAKE
IN SOME INSOLATION.
11
From Austin/San Antonio, TX NWS:
WEAK SYSTEMS BOTHER ME WITH THE FRONT HANGING AROUND THE
AREA MEMORIAL DAY. WITH A SOUTHWESTERLY JET OF 40 TO 50 KTS
EXPECTED...THESE WEAK IMPULSES MOVING ALONG THE FRONTAL ZONE COULD
DEVELOP HEAVY RAINS IN LOCALIZED AREAS. I'LL NOT MENTION HEAVY
RAINS ON MEMORIAL DAY NOW...BUT THIS BEARS WATCH.
02/09
From Huntsville, AL NWS:
WITH NWLY FLOW ALOFT...I CAN'T GIVE IT THE "NOT
GOING TO RAIN" STAMP...BUT POPS WILL BE LESS THAN 10 PERCENT.
JE/23
From Wakefield, VA NWS:
A LOOK BACK AT PAST MEMORIAL DAY WEEKENDS SINCE THE MID 1990S
SHOWS THE LAST WK OF MAY CAN BE QUITE COOL AND RAINY...WTH MOST
YEARS SHOWING BELOW NORMAL TEMPERATURES AND RAINFALL DURING THE LAST
WEEK OF MAY. COINCIDENCE? PROBABLY...SINCE THERE WERE A COUPLE OF
YEARS WHEN THE TEMPERATURES WERE NEAR TO ABOVE NORMAL AND RELATIVELY
LTL RAIN. MIGHT BE WORTH RESEARCHING...DURING LESS BUSY TIMES.
NS
From Albany, NY NWS:
THE LATEST RUNS OF THE NUMERICAL FORECAST MODELS CONTINUE TO SUGGEST
THAT THE END OF THE MEMORIAL HOLIDAY WEEKEND WILL BE AN UGLY ONE.
IT LOOKS LIKE A TOTAL WASHOUT IN MOST, IF NOT ALL OF THE FORECAST
AREA.
HEMMERICH
From Riverton, WY NWS:
THETA-E/CAPE TO BE
CONCENTRATED ALONG AND EAST OF TROUGH AXIS WITH DRIER MORE STABLE
WESTERLY FLOW/DEWPOINTS LOWERING INTO THE 30S TO THE WEST. STEPPING
AWAY FROM COMPUTER SCREENS WITH A 1:SEVERAL MILLION SCALE
REPRESENTATION...CELESTIAL DOME VIEW SHOWS SOME METHOD TO THIS
MADNESS WITH WELL-DEFINED TCU/CB TO THE NORTH AND EAST...CONVECTION
BEING ENTRAINED AND LESS ORGANIZED TO THE SOUTH AND WEST.
C.BAKER
From State College, PA NWS:
MORE OF THE (EXACT?) SAME TMRW...AND TMRW..AND TMRW...HEAVY RAIN ONLY IN PATCHY SPOTS TONIGHT...BUT GOT A FEW REPORTS OF
NUISANCE FLOODING (BIG PUDDLES)...THE LIGHT AT THE
END OF THE TUNNEL...OR IS THAT THE SUN...COULD ARRIVE BY DAY 7 AS
THE LONGER RANGE MODELS BEGINNING TO INDICATE THE TRACK OF UPPER
LOWS WILL BEGIN TO SHIFT NORTHWARD AND FINALLY ALLOW US TO START THE
SUMMER.
DANGELO/RXR
From Mt. Holly, NJ NWS:
THERE MAY BE A
BREAK AFTER THE SUN FROPA...IF THIS PARTICULAR CUTOFF STAYS FAR
ENOUGH TO OUR W AND THEN N PER THE MRF...BUT MY GUT FEELING IS THAT
THE OPTIMISTIC FORECAST FOR THE FIRST PART OF NEXT WEEK IS JUST
THAT...BY THE WAY...THE OLD JOKE AS APPLIED TO THIS WEATHER PATTERN WOULD
BE...IT MAKES ME VERY HAPPY TO SAY THAT WE ARE FINALLY GOING TO SEE
SOME SUNNY LATE SPRING WEATHER. IT'S NOT TRUE...BUT IT MAKES ME VERY
HAPPY TO SAY IT.
45
From Miami, FL NWS:
IF I CAN JUST MAKE IT THROUGH WEDNESDAY, FORECAST MIGHT NOT BE TOO
DIFFICULT.
From Phoenix, AZ NWS:
WE ALREADY SAW
SOME MOISTURE INCREASE TUESDAY ON THE FLAGSTAFF AND TUCSON SOUNDINGS
...WITH A LITTLE MORE HIGH BASED CONVECTION NOTED OVER EAST CENTRAL
AZ TUESDAY AFTERNOON. THE 54 MPH DOWNBURST WIND AT SAFFORD AZ WAS A
REMINDER OF HOW STRONG THESE EARLY SEASON HIGH BASED STORMS CAN
BECOME.
VASQUEZ
From Lake Charles, LA NWS:
PLACES AROUND THE BEAUMONT AREA UNFORTUNATELY MISSED OUT ON THE
RAINS FROM YESTERDAY. THE SOUTHEAST TEXAS REGIONAL AIRPORT RECORDED
JUST A TRACE OF RAINFALL. IF THE CURRENT DRY FORECAST HOLDS THROUGH
SATURDAY...THE BEAUMONT/PORT ARTHUR AREA WILL HAVE THE DRIEST MAY ON
RECORD WITH JUST 0.01 INCHES OF RAINFALL.
07-RUA/MCNATT
From Newport/Morehead City, NC NWS:
A TALE OF 2 SHORT WAVES AND THEIR ASSOCIATED COLD FRONTS TO
COME AND GO IN RAPID FIRE ORDER OVER THE NEXT 2 DAYS.
COLLINS/CHIELLINI
From State College, PA NWS:
DEPRESSINGLY BORING PATTERN CONTINUES OVER THE NE WITH DRAB
OCCASIONALLY SHOWERY CONDITIONS WHICH DOMINATE THE WORDING RIGHT
INTO SUNDAY...IT GOES DOWNHILL ONCE AGAIN COURTESY OF THE SHORTWAVE
CURRENTLY MOVING ASHORE IN THE PACIFIC NW. MREF THEN GOES ON TO SHOW
BELOW NORMAL HGHTS OVER ERN US THRU AT LEAST DAY 6...SIGH. THE ONLY
POSSIBLE LIGHT AT THE END OF THE TUNNEL IS THE HINT OF A BERMUDA
RIDGE BEING MADE IN THE OPERATIONAL MRF AS WELL AT THE MREF
GUIDANCE.
LA CORTE
From Albany, NY NWS:
THE SCENARIO LOOKS
WINTRY...ESPECIALLY CONSIDERING THE GFS IS INDICATING H850 TEMPS TO
DROP BELOW 0C BY LATE SATURDAY NIGHT INTO SUNDAY! 1000-850
THICKNESSES DROP TO 1320. THE SCARIEST PART IS WE ARE ABOUT TO
START JUNE BY SUNDAY.
From Goodland, KS NWS:
THE HEAT MACHINE IS ROARING INTO ACTION.
RJC
From State College, PA NWS:
LONGER RANGE...SIGNIFICANT TROUGHING ALONG THE WEST COAST WILL HAVE
THE DOWNSTREAM EFFECT OF PUMPING HEIGHTS HERE ABOVE NORMAL FOR NEXT
WEEKEND. COULD WE FINALLY SEE ABOVE NORMAL TEMPS AND A RAINFREE
WEEKEND? ABOUT THE ONLY
QUESTION FOR US WOULD BE THE OCCURRENCE AND PROXIMITY OF ANY "BACK
DOOR" COOL FRONT.
LAMBERT
From Albany, NY NWS:
STUBBORN CLOUDS HUNG ON ACROSS SOUTHEAST PORTION OF CWA WHILE
NORTHWEST PORTIONS HAD PARTIAL SUNSHINE. I SHOULD HAVE LEARNED THAT
GIVEN THE PATTERN OF THE PAST MONTH OR TWO...BE PESSIMISTIC. AT
LEAST NO RAIN TODAY.
From Albuquerque, NM NWS:
LOW LEVEL MOISTURE SURGE QUITE POSSIBLE FROM THE SOUTH UP THROUGH
THE RIO GRANDE VALLEY THIS AFTERNOON AND THIS EVENING. DEWPOINT
STILL IN THE MID 40S IN ABQ AS OF 100 PM. WILL KEEP CHC OF TSTMS IN
RGV TONIGHT. IN FACT IT MAY VERY WELL BE LATE TONIGHT BEFORE
RESIDENTS OF ABQ HEAR A CLAP OF THUNDER.
JWS
From Las Vegas, NV NWS:
MODELS ARE IN GOOD AGREEMENT
DEPICTING MUCH STRONGER UPPER LOW OVER THE GULF OF ALASKA. THIS LOW
WILL SLOWLY SAG SOUTH INTO THE PACIFIC NORTHWEST FRIDAY AND
SATURDAY. PATTERN WILL KEEP A DRY SOUTHWEST OR WEST FLOW ACROSS THE
FORECAST AREA WITH TEMPERATURES NEAR NORMAL. IN FACT...GFS GUIDANCE
SHOWS BELOW NORMAL TEMPERATURES THURSDAY AND FRIDAY. THE LAST DATE
THAT LAS VEGAS EXPERIENCED A HIGH TEMPERATURE THAT WAS NORMAL WAS
MAY 19.
SALMEN/PIERCE
From Austin/San Antonio, TX NWS:
NO MAJOR UPPER LEVEL FORCING MECHANISMS TO DEAL WITH TONIGHT AND NO
ORGANIZED ACTIVITY. ONLY A LONE STORM WHICH ROUTINELY FORMS (WE CALL
IT "OLD FAITHFUL") NEAR THE HIGHEST PEAK OF THE SIERRA MADRE
MOUNTAINS ABOUT 65 MILES WEST OF DEL RIO...MOVING LITTLE AND
WEAKENING. WILL NOT MAKE IT INTO THE AREA TONIGHT.
From San Angelo, TX NWS:
.CURRENT...ATMOSPHERE RELOADED. CLOUD FREE SKIES HAVE ALLOWED FOR
MAXIMUM SOLAR HEATING...WATER VAPOR IMAGERY SHOWS COMPACT SHORTWAVE OVER
THE NORTHERN TEXAS PANHANDLE AND NORTHEAST NEW MEXICO...WHERE HIGH
TERRAIN CONVECTION UNDERWAY. LOOKS LIKE TURKEY TOWERS OVER THE DAVIS
MTS ARE READY TO BLOSSOM...IN VICINITY OF LOW PRESSURE SURFACE
TROUGH.
27/BRAZZELL/17
From Memphis, TN NWS:
TEMPS HAVE WARMED WELL INTO THE 80S
WITH A FEW 90 DEGREE READINGS AROUND THE FA. THE FIRST OFFICIAL 90
DEGREE DAY AT MEM FOR THE SUMMER.
From Upton, NY NWS:
IT LOOKS LIKE THE OLD
FRONTAL BOUNDARY WILL SINK FAR ENOUGH SOUTH OF THE REGION TO ALLOW
HIGH PRESSURE FROM THE NORTH TO BUILD IN FROM CANADA FOR THE
REMAINDER OF THE WEEKEND AND THE START OF NEXT WEEK. YES...THIS
MEANS WE MAY ACTUALLY GET A LOOK AT THE SUN THIS COMING WEEKEND.
JK
From San Angelo, TX NWS:
...CLAUDETTE STILL A PLAYER...OF NOTE...THESE TROPICAL
SYSTEMS TEND TO BREATH OUT (EXPAND) BY DAY...THEN BREATH IN
(CONTRACT) BY NIGHT...SO POPS MAY NEED TO ADJUSTED.
17
From El Paso, TX NWS:
THE MODELS ARE TRYING TO
FIGURE OUT WHAT TO DO WITH THE REMNANTS OF CLAUDETTE. THE AVN SCORES
A DIRECT BULL'S EYE ON EL PASO ON THURSDAY AFTERNOON...WHILE THE
CANADIAN MODELS HAS IT A LITTLE FURTHER SOUTH AND THE ETA MODEL KEEPS
ALL THE ASSOCIATED MOISTURE TO THE SOUTH OF US. RIGHT NOW I'LL GO
WITH THE CANADIAN MODEL AND REEVALUATE TOMORROW.
15 BRICE
From New Orleans/Baton Rouge, LA NWS:
NOW IS THE TIME TO REAP THE BENEFITS OF CLAUDETTE...NOW A MINIMAL
HURRICANE THREATENING THE CENTRAL TEXAS COAST. PERIPHERAL SUBSIDENCE
AND A GENERAL MOISURE FLUX DIVERGENCE PATTERN IN THE LOW LEVELS
SHOULD ALLOW FOR A LOW PROBABILITY DAY AND RELATIVELY COOLER NIGHT
TONIGHT.
24
From Glasgow, MT NWS:
TILT-A-WHIRL UPPER PATTER WITH MASSIVE UPPER LOW/TROF OVER WESTERN
NORTH AMERICA AND INBEDDED LOWS CIRCULATING AROUND IT.
CB
From Blacksburg, VA NWS:
FINALLY A LITTLE SUN. AFTER DAYS OF DEBRIS CLOUD WE GET TO PARTAKE
IN SOME INSOLATION.
11
From Greenville/Spartanburg, SC NWS:
WL HAVE RATHER LOW POPS
TUE NGHT AND WED. THE GFS DOES DEVELOP DEEP ELY FLOW...W/GOOD
UPSLOPE BECOMING ESTABLISHED INTO THE MTNS WED. TALKED THIS OVER
W/HPC...AND THEY FEEL THAT THE UPGLIDE AND THE PROXIMITY OF THE
UPPER LOW MAY RESULT IN A SECONDARY QPF MAXIMA ALONG THE ESCARPMENT
ON WED. THEY DON/T...HOWEVER...BUY THE ETA W/ITS LARGE AREA OF OVER
1 INCH. I STILL THINK THEIR QPF IS A BIT OVER DONE...BUT I
LIKE THE REASONING.
MCAVOY
From Corpus Christi, TX NWS:
GFS/MRF HAS BEEN FICKLE WITH
ADVERTISING FRONTS THIS YEAR...GOING FOR IT ON ONE MODEL RUN THEN
RENEGING ON IT 24 HOURS LATER.
86/GW
From Denver, CO NWS:
AUTUMN WEATHER DOLDRUMS WILL CONTINUE WITH NO SIGN OF
PRECIPITATION AT LEAST THROUGH TONIGHT.
BAKER
From Chicago, IL NWS:
A GOLD STAR TO MOTHER NATURE NEXT FEW DAYS AS THE OLD "INDIAN
SUMMER" PATTERN TAKES HOLD AFTER OUR RECENT FROSTY NIGHTS.
AF
From Binghamton, NY NWS:
I FEEL IT MAKES SENSE TO STAY ON THE CONSERVATIVE SIDE
WITH THE MAXES. LATEST MAVMOS IS FORECASTING LOWER 70S...WHILE FWC
AND ETA GUIDANCE IS STARTING TO PUSH UPPER 70S. SO WHO IS RIGHT? THE
BOTTOM LINE FOR ME IS YOU HAVE TO TRAVEL PRETTY DARN FAR SOUTH TO
FIND OBSERVED MAXES IN THE MIDDLE 70S FROM MONDAY AFTERNOON.
PADAVONA