Monday, November 24, 2008

DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 240555
SWODY2
SPC AC 240554

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1154 PM CST SUN NOV 23 2008

VALID 251200Z - 261200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS...
LARGE COLD UPPER LEVEL LOW/TROUGH WILL BE LOCATED ACROSS THE ERN
THIRD OF THE COUNTRY...WITH ANOTHER UPPER LOW APPROACHING CA. IN
BETWEEN THESE TWO TROUGHS...A RIDGE WILL COVER THE ROCKIES AND
PLAINS STATES...RESULTING IN STABLE ENVIRONMENTAL CONDITIONS ACROSS
MOST OF THE CONUS. ONE POSSIBLE LOCATION FOR LIGHTNING WOULD BE
ACROSS SRN CA/WRN AZ TUESDAY NIGHT AS LARGE SCALE FORCING SPREADS
INTO THE REGION AND LAPSE RATES STEEPEN BETWEEN 700-300 MB. HOWEVER
...FORECASTS SOUNDINGS SHOW ONLY A SLIVER OF INSTABILITY WITH
MUCAPES LESS THAN 100 J/KG...SO LIGHTNING IS EXPECTED TO BE TOO
ISOLATED FOR A 10% THUNDER AREA.

..IMY.. 11/24/2008

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