Saturday, March 14, 2009

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 140831
SWOD48
SPC AC 140830

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0330 AM CDT SAT MAR 14 2009

VALID 171200Z - 221200Z

...DISCUSSION...
THE UPPER PATTERN ACROSS THE CONUS IS FORECAST TO UNDERGO A SLOW BUT
STEADY AMPLIFICATION THROUGH THE PERIOD...AS A FLAT TROUGH CROSSES
THE NWRN AND N CENTRAL CONUS AND THEN SLOWLY AMPLIFIES INTO THE ERN
HALF OF THE COUNTRY. WHILE A RELATIVELY WEAK SURFACE COLD FRONT
WILL MOVE SEWD ACROSS THE ERN 2/3 OF THE CONUS THROUGH DAY 6...THE
LACK OF A PRONOUNCED SURFACE CYCLONE TO DRAW SUBSTANTIAL GULF
MOISTURE NWD SHOULD RESULT IN MARGINAL THERMODYNAMIC PRE-FRONTAL
ENVIRONMENT. THIS COMBINED WITH A LACK OF STRONG/FOCUSED UVV
PRECLUDES ANY APPRECIABLE POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER
EVENT THROUGH THE FORECAST PERIOD.

..GOSS.. 03/14/2009

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