Friday, September 21, 2012

DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 210733
SWODY3
SPC AC 210731

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0231 AM CDT FRI SEP 21 2012

VALID 231200Z - 241200Z

...SYNOPSIS...
A LARGE TROUGH OVER ERN NOAM WILL CONTINUE MAKING SLOW EWD PROGRESS
THIS PERIOD...WITH THE ASSOCIATED SURFACE COLD FRONT TO CONTINUE
MOVING EWD ACROSS THE WRN ATLANTIC AND A LARGE SURFACE HIGH
PREVAILING ACROSS THE ERN HALF OF THE CONUS.

MEANWHILE FARTHER W...A WEAK LOW INVOF ERN OREGON EARLY IS FORECAST
TO MOVE SLOWLY SEWD WITH TIME...REACHING THE NRN NV VICINITY LATE IN
THE PERIOD. COOLING ALOFT ASSOCIATED WITH THIS FEATURE SHOULD
SUPPORT SHOWERS AND ISOLATED TO SCATTERED THUNDERSTORMS ACROSS A
GOOD PORTION OF THE INTERMOUNTAIN WEST...BUT SEVERE WEATHER IS NOT
EXPECTED.

..GOSS.. 09/21/2012

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