SWODY1
SPC AC 180034
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0734 PM CDT THU SEP 17 2009
VALID 180100Z - 181200Z
...NO SVR TSTM AREAS FORECAST...
...SRN ROCKIES...
EARLY EVENING WV IMAGERY CLEARLY DEPICTS CENTER OF UPPER LOW/VORT
OVER SERN AZ NEAR THE NM BORDER DIGGING SEWD IN LINE WITH MODEL
GUIDANCE. CONSIDERABLE AMOUNT OF CONVECTION HAS DEVELOPED AHEAD OF
THIS FEATURE ALONG INSTABILITY AXIS THAT EXTENDS INTO NRN MEXICO.
WITH MULTIPLE THUNDERSTORM CLUSTERS NOW CONCENTRATED SOUTH OF THE NM
BORDER...IT APPEARS THE GREATEST THREAT FOR STRONG STORMS HAS NOW
SHIFTED INTO NRN MEXICO.
...ELSEWHERE...
VERY MOIST AIRMASS HAS YET TO BE DISPLACED ACROSS THE GULF STATES
WHERE UPWARDS OF 1.5-2.2 INCHES OF PWAT ARE COMMON FROM THE FL
PENINSULA...NWWD INTO ERN TX/OK. THIS ENVIRONMENT SHOULD REMAIN
CONDUCIVE FOR SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS...ESPECIALLY FOR THE NEXT FEW HOURS AND THEN BOUNDARY
LAYER COOLING WILL LIMIT LIGHTNING ACTIVITY.
..DARROW.. 09/18/2009
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