296
ACUS02 KWNS 090646
SWODY2
SPC AC 090645
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1245 AM CST TUE FEB 09 2010
VALID 101200Z - 111200Z
..NO SVR TSTM AREAS FORECAST
..SYNOPSIS
TWO UPPER LOWS WILL BE THE PRIMARY FEATURES AFFECTING THE U.S. THIS
PERIOD -- ONE MOVING ACROSS/OFF THE MID-ATLANTIC COAST THROUGH THE
FIRST HALF OF THE PERIOD...AND A SECOND MOVING ESEWD FROM SRN CA
ACROSS SRN AZ/FAR NWRN MEXICO.
AT THE SURFACE...CYCLOGENESIS IS EXPECTED TO BE UNDERWAY OFF THE
MID-ATLANTIC COAST AHEAD OF THE ERN UPPER LOW...WITH COOL/STABLE AIR
PREVAILING IN THE WAKE OF THIS SYSTEM ACROSS THE ERN 2/3 OF THE
COUNTRY. THUS ONSHORE DEEP/MOIST CONVECTION IS NOT EXPECTED E OF
THE ROCKIES.
OVER THE SOUTHWEST...COOLER AIR ALOFT ASSOCIATED WITH THE UPPER
TROUGH WILL CONTRIBUTE TO WEAK BUT SUFFICIENT DESTABILIZATION FOR
SHOWERS AND POSSIBLY OCCASIONAL LIGHTNING -- MAINLY ACROSS SRN AZ
DURING THE AFTERNOON HOURS.
..GOSS.. 02/09/2010
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