SWODY1
SPC AC 300041
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0741 PM CDT TUE APR 29 2008
VALID 300100Z - 301200Z
...NO SVR TSTM AREAS FORECAST...
LATEST WATER VAPOR IMAGERY DEPICTS AN UPPER-LEVEL TROUGH OVER THE
PACIFIC NORTHWEST WITH AN UPPER-LEVEL RIDGE IN THE PLAINS AND
ANOTHER TROUGH ALONG THE ERN SEABOARD. THUNDERSTORMS ARE ONGOING IN
SOUTH FLORIDA IN A WEAKLY UNSTABLE ENVIRONMENT NEAR A FRONTAL
BOUNDARY. ELSEWHERE...THUNDERSTORMS ARE DEVELOPING IN WCNTRL MT NW
OF A SFC LOW. THIS CONVECTION IS LOCATED IN DIVERGENT FLOW ALOFT
AHEAD OF THE PACIFIC NORTHWEST TROUGH. ADDITIONAL STORMS MAY DEVELOP
EWD AND SWD ACROSS CNTRL MT AND SRN ID AS A BAND OF STRONG
LARGE-SCALE ASCENT MOVES EWD THIS EVENING. NONE OF THE ACTIVITY
ACROSS THE CONUS IS EXPECTED TO BE SEVERE TONIGHT.
..BROYLES.. 04/30/2008
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