SPC AC 250024
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0624 PM CST FRI NOV 24 2006
VALID 250100Z - 251200Z
...NO TSTM AREAS FORECAST...
A LARGE-SCALE UPPER TROUGH CONTINUES TO EVOLVE ACROSS THE EASTERN
PACIFIC INTO THE PLAINS/UPPER MISSISSIPPI VALLEY...BUT THE FLOW
REGIME BETWEEN SPLIT BELTS OF POLAR WESTERLIES TO THE EAST OF THE
TROUGH AXIS REMAINS CONFLUENT. AND...SOUTHERN STREAM IMPULSE LIKELY
WILL WEAKEN AS IT BEGINS TO LIFT NORTHEAST OF THE FOUR CORNERS
STATES LATER TONIGHT.
AN ELONGATED SURFACE RIDGE EXTENDING FROM THE EASTERN CANADIAN
PROVINCES INTO GULF OF MEXICO HAS INHIBITED THE MODIFICATION OF THE
BOUNDARY LAYER OVER THE GULF OF MEXICO...WHERE SURFACE DEW POINTS
HAVE REMAINED MORE OR LESS STEADY IN THE 50S DURING THE PAST 24
HOURS. WITH LITTLE CHANGE ANTICIPATED IN THE SHORT TERM...
SUBSTANTIAL RETURN FLOW OF MOISTURE INTO THE CENTRAL STATES APPEARS
UNLIKELY THROUGH THE REMAINDER OF THIS PERIOD AND BEYOND.
ACROSS THE PACIFIC NORTHWEST...COLDER MID-LEVEL ENVIRONMENT
ASSOCIATED WITH THE NORTHERN STREAM APPEARS LIKELY TO REMAIN MOSTLY
INLAND OR NORTH OF THE CANADIAN/U.S. BORDER. AND...WITH ONSHORE
LOW-LEVEL/UPSLOPE FLOW REMAINING WEAK INTO SATURDAY...POTENTIAL FOR
THUNDERSTORMS APPEARS NEGLIGIBLE.
..KERR.. 11/25/2006
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z
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