SWODY1
SPC AC 181931
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0131 PM CST THU NOV 18 2010
VALID 182000Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
NO CHANGES TO THE PREVIOUS OUTLOOK.
..JEWELL.. 11/18/2010
.PREV DISCUSSION... /ISSUED 1026 AM CST THU NOV 18 2010/
...SYNOPSIS...
RATHER BENIGN PATTERN ACROSS THE CONUS WITH A CONTINENTAL POLAR AIR
MASS AND RELATIVELY COOL/DRY OFFSHORE FLOW ACROSS THE ATLANTIC AND
GULF COASTS. SOME LOW-MIDLEVEL MOISTURE AND INSTABILITY REMAIN OVER
S FL...BUT THE PRIMARY WIND SHIFT AND FOCUS FOR DEEP CONVECTION WILL
REMAIN OVER THE FL STRAITS. OTHERWISE...A STRONG UPPER TROUGH WITH
500 MB TEMPERATURES AROUND -35C IS OVERSPREADING THE PAC NW. LOW
TOPPED CONVECTION IS ASSOCIATED WITH THE MIDLEVEL COLD POOL AND
RELATIVELY STEEP LAPSE RATES...AND ISOLATED LIGHTNING STRIKES COULD
OCCUR TODAY ALONG THE WA/NW ORE COASTS.
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