Monday, October 19, 2009

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 191558
SWODY1
SPC AC 191557

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1057 AM CDT MON OCT 19 2009

VALID 191630Z - 201200Z

...NO SVR TSTM AREAS FORECAST...

TROUGH NOW ENTERING NRN CA WILL DIG SEWD TOWARD LWR CO RIVER VALLEY
BY TUE AM...WITH THE LEAD IMPULSE NOW NRN INTERMOUNTAIN REGION
DAMPENING AS IT MOVES INTO CONFLUENT FLOW OVER NRN PLAINS.

STEEP LAPSE RATES AND SUFFICIENT MOISTURE WILL SUPPORT MAINLY
DIURNAL GENERALLY WEAK THUNDERSTORM DEVELOPMENT WITH BOTH SYSTEMS.
SOUTHERN LIMIT OF STORM FORMATION SHOULD BE ALONG AND N OF CYCLONIC
SIDE OF POLAR JET...WHERE MID LEVEL AIR MASS WILL BE COLDER...AND
LAPSE RATES STEEPER.

..HALES/HURLBUT.. 10/19/2009

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