SWODY2
SPC AC 051701
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1101 AM CST THU NOV 05 2009
VALID 061200Z - 071200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
FAST FLOW ALOFT IS PROGGED TO REMAIN ACROSS ROUGHLY THE NRN HALF OF
THE U.S. THIS PERIOD. A TROUGH/LOW IS EXPECTED TO DEPART THE
NORTHEAST/NEW ENGLAND THROUGH THE DAY...WHILE UPSTREAM RIDGING
CROSSES THE GREAT LAKES REGION.
FARTHER W...A SHORT-WAVE TROUGH SHIFTING OUT OF THE NWRN U.S. AND
INTO THE NRN PLAINS/CANADIAN PRAIRIE WILL BE FOLLOWED BY A SECOND
FEATURE SHIFTING SEWD TOWARD THE PAC NW. AS A RESULT...LONGER-WAVE
MEAN TROUGHING WILL BE MAINTAINED ACROSS NWRN NOAM THROUGH THE
PERIOD.
AT THE SURFACE...A COLD FRONT WILL SPREAD EWD ACROSS CENTRAL CANADA
AND THE N CENTRAL U.S. THROUGH THE END OF THE PERIOD...IN
CONJUNCTION WITH THE INITIAL WRN UPPER TROUGH. ELSEWHERE...HIGH
PRESSURE IS EXPECTED TO REMAIN OVER THE ERN THIRD OF THE CONUS.
SHOWERS AND OCCASIONAL LIGHTNING STRIKES WILL BE POSSIBLE ACROSS THE
COASTAL PAC NW...AS STRONG LOW-LEVEL ONSHORE/UPSLOPE FLOW PROVIDES
FAVORABLE LIFT. ELSEWHERE...THUNDERSTORMS ARE NOT ANTICIPATED THIS
PERIOD.
..GOSS.. 11/05/2009
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