SWODY2
SPC AC 171710
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CDT THU SEP 17 2009
VALID 181200Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
A LARGE UPPER-LEVEL RIDGE WILL DOMINATE MOST OF THE CONUS FRIDAY AS
AN UPPER-LEVEL TROUGH MOVES EWD ACROSS THE NERN STATES. BENEATH THE
RIDGE IN THE GULF COAST STATES...A MOIST AIRMASS WILL BE IN PLACE
FRIDAY AFTERNOON WITH SFC DEWPOINTS IN THE LOWER 70S F. SFC HEATING
DURING THE DAY WILL RESULT IN SCATTERED TO NUMEROUS THUNDERSTORM
DEVELOPMENT FROM THE ARKLATEX EWD ACROSS THE TN VALLEY TO SC AND FL.
ALTHOUGH MODERATE INSTABILITY MAY DEVELOP IN SOME AREAS...VERTICAL
SHEAR SHOULD NOT BE STRONG ENOUGH FOR A SEVERE THREAT.
ELSEWHERE...SCATTERED THUNDERSTORMS SHOULD DEVELOP ACROSS THE FOUR
CORNERS REGION AS SFC TEMPS WARM DURING THE DAY. THIS ACTIVITY IS
NOT EXPECTED TO CONTAIN A SEVERE THREAT.
..BROYLES.. 09/17/2009
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