DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 270858
SWOD48
SPC AC 270857

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0357 AM CDT FRI JUL 27 2012

VALID 301200Z - 041200Z

...DISCUSSION...
MEDIUM RANGE MODELS ARE FAIRLY SIMILAR WITH THE EVOLUTION OF THE
LARGE SCALE PATTERN DURING THE EARLY TO MIDDLE PART OF NEXT WEEK. A
RETROGRESSION OR WESTWARD REDEVELOPMENT OF THE SOUTH CENTRAL PLAINS
SUBTROPICAL HIGH CENTER APPEARS PROBABLE...WITH GENERAL UPPER
TROUGHINESS PREVAILING EAST OF THE MISSISSIPPI VALLEY INTO THE
ATLANTIC SEABOARD. SHORT WAVE IMPULSES PROGRESSING THROUGH LARGER
SCALE ANTICYCLONIC...WEST NORTHWESTERLY MID/UPPER FLOW...FROM THE
NORTHERN ROCKIES INTO THE MID/UPPER MISSISSIPPI VALLEY...THE GREAT
LAKES REGION AND OHIO VALLEY...WILL PROVIDE AT LEAST SOME POTENTIAL
FOR THE PERIODIC EVOLUTION OF CONVECTIVE COMPLEXES CAPABLE OF
PRODUCING STRONG WIND GUSTS. HOWEVER...THE POTENTIAL FOR THE
DEVELOPMENT OF A LONG-LIVED OR WIDESPREAD EVENT APPEARS TOO LOW TO
DELINEATE A SEVERE RISK AREA AT THIS TIME...EVEN IF PREDICTABILITY
WAS NOT AN ISSUE AS WELL.

..KERR.. 07/27/2012

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