Thursday, August 28, 2008

DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 280720
SWODY3
SPC AC 280717

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0217 AM CDT THU AUG 28 2008

VALID 301200Z - 311200Z

...NO SVR TSTM AREAS FORECAST...

AN UPPER-LEVEL RIDGE OVER THE HIGH PLAINS FRIDAY NIGHT IS FORECAST
TO AMPLIFY AND MOVE INTO THE UPPER MIDWEST SATURDAY. AS SOUTHWEST
FLOW DEVELOPS ACROSS THE NWRN STATES...A BROAD AND WELL-DEVELOPED
LOW-LEVEL JET IS FORECAST TO DEVELOP OVER THE PLAINS. THIS WILL
ALLOW MOISTURE TO QUICKLY SURGE NWD INTO THE CNTRL AND NRN PLAINS
SATURDAY AND SATURDAY NIGHT. DESPITE THE INCREASE IN
MOISTURE...LARGE-SCALE ASCENT IN THE NRN PLAINS SHOULD BE WEAK
BEHIND THE EXITING RIDGE LIMITING CONVECTIVE DEVELOPMENT ALONG THE
MOIST AXIS. THE GREATEST POTENTIAL FOR CONVECTIVE DEVELOPMENT
APPEARS TO BE OVER THE CNTRL PLAINS AND OZARKS WHERE VERTICAL SHEAR
IS EXPECTED TO QUITE WEAK.

..BROYLES.. 08/28/2008

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