Friday, October 29, 2010

DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 290534
SWODY2
SPC AC 290533

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1233 AM CDT FRI OCT 29 2010

VALID 301200Z - 311200Z

...NO SVR TSTM AREAS FORECAST...

...GREAT BASIN/CNTRL ROCKIES...

LATEST 00Z MODEL GUIDANCE SUGGEST ERN PACIFIC UPPER TROUGH WILL DIG
SEWD INTO CA BEFORE EJECTING ENEWD ACROSS THE GREAT BASIN INTO THE
CNTRL ROCKIES LATE IN THE DAY2 PERIOD. THIS FEATURE WILL
UNDOUBTEDLY ENHANCE VERTICAL ASCENT WITHIN LEFT EXIT REGION OF A
FAIRLY WELL DEFINED MID LEVEL SPEED MAX THAT WILL TRANSLATE INTO
SWRN CO AT 31/00Z. ALTHOUGH MOISTURE/INSTABILITY WILL BE LIMITED
ACROSS NV/UT/CO...PWAT VALUES NEAR ONE-HALF INCH...IT APPEARS STRONG
FORCING ALONG A WELL DEFINED BAROCLINIC ZONE SHOULD PROVE SUFFICIENT
IN GENERATING CONVECTION DEEP ENOUGH FOR LIGHTNING DISCHARGE AS
100-200 J/KG MUCAPE WILL RESULT IN CLOUD HEIGHTS IN EXCESS OF 400 MB
- TEMPERATURES WELL BELOW MINUS 20C. FOR THIS REASON IT APPEARS
ISOLATED THUNDERSTORMS SHOULD BE NOTED...PRIMARILY DURING THE
DAYTIME/EARLY EVENING HOURS.

..DARROW.. 10/29/2010

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