Wednesday, September 26, 2007

MESO: Mesoscale Discussion 2023

ACUS11 KWNS 262103
SWOMCD
SPC MCD 262103
TXZ000-OKZ000-262330-

MESOSCALE DISCUSSION 2023
NWS STORM PREDICTION CENTER NORMAN OK
0403 PM CDT WED SEP 26 2007

AREAS AFFECTED...TX SOUTH PLAINS/TX PANHANDLE AND THE OK PANHANDLE

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 262103Z - 262330Z

CLUSTER OF TSTMS TO THE WNW OF LBB SHOULD BEGIN TO POSE A THREAT FOR
MARGINALLY SVR HAIL/WIND SHORTLY. ADDITIONAL ISOLATED SVR TSTMS ARE
POSSIBLE ALONG SEVERAL BOUNDARIES ACROSS THE OK/TX PANHANDLE AND NRN
TX SOUTH PLAINS. WW IS NOT EXPECTED ATTM.

LATEST SFC ANALYSIS SHOWS SEVERAL BOUNDARIES THAT WERE PROVIDING
FOCUS FOR CONVECTIVE DEVELOPMENT ACROSS THE TX SOUTH PLAINS/TX
PANHANDLE. A DRYLINE EXTENDS SWD FROM A SFC LOW NEAR GUYMON TO NEAR
CVS. THE REMNANT SYNOPTIC FRONTAL BOUNDARY EXTENDS FROM NEAR
PERRYTON TO 30 W OF CDS....WHILE A SECONDARY WEAK COLD FRONT EXTENDS
FROM NEAR GUYMON TO NEAR LBL. WITH LITTLE REMAINING CINH OVER THE
REGION...THESE BOUNDARIES SHOULD PROVIDE A FOCUS FOR ADDITIONAL TSTM
DEVELOPMENT OVER THE NEXT COUPLE OF HOURS. RELATIVELY WEAK MID LEVEL
FLOW /AROUND 20 KTS/ WILL LIMIT UPDRAFT STRENGTH...BUT MODERATE
INSTABILITY /MLCAPE FROM 1000-1500 J/KG/ MAY SUPPORT A BRIEF SVR
WIND/HAIL THREAT GIVEN STEEP LOW-MID LEVEL LAPSE RATES.

.CROSBIE.. 09/26/2007

..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LUB...AMA...

35400268 36650181 36930067 36490022 35920028 35000088
34560113 34050143 33790157 33480187 33450229 33580300
34430300 35290270

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