Thursday, January 5, 2012

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 050512
SWODY1
SPC AC 050510

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1110 PM CST WED JAN 04 2012

VALID 051200Z - 061200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS...

QUIESCENT WEATHER CONDITIONS WILL PREVAIL ACROSS MOST OF THE CONUS
TODAY. ONLY TWO AREAS OF APPRECIABLE PRECIPITATION WILL BE
NOTED...ONE ALONG THE PACIFIC NORTHWEST COAST...THE OTHER NEAR THE
LOWER AND MIDDLE TEXAS GULF COASTAL AREAS. THE BEST CHANCE FOR ANY
DEEP MOIST CONVECTION...ALBEIT VERY LOW...WILL EXIST NEAR THE LATTER
AREA...FROM FAR S TEXAS TO NEAR VCT AND ADJACENT OFFSHORE WATERS. A
SHORTWAVE TROUGH LOCATED OVER WRN MEXICO AS OF 05Z WILL CONTINUE TO
EJECT E/SEWD THIS AFTERNOON TOWARD S TX AND THE WRN GULF. DEEP LAYER
FLOW WILL REMAIN WEAK AHEAD OF THIS SYSTEM /AROUND 15 KT 0-6 KM
SHEAR/ AND RELATIVELY WARM MID LEVELS /0-2 DEG C AT 700 MB/ WILL
LIMIT UPDRAFT STRENGTH. ALTHOUGH A WEAK SFC COLD FRONT WILL BE IN
THE VICINITY OF THE COAST...LIGHT SFC WINDS AND WEAK CONVERGENCE
ACROSS THE FRONT WILL PROVIDE LITTLE SUPPORT. THEREFORE...EXPECT
MOSTLY SHOWER ACTIVITY WITH VERY LITTLE /LESS THAN 10 PERCENT/ IF
ANY LIGHTNING PRODUCTION GIVEN THE LACK OF STRONGER FORCING FOR
ASCENT.

..LEITMAN/KERR.. 01/05/2012

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