SPC AC 070053
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0753 PM CDT SUN SEP 06 2009
VALID 070100Z - 071200Z
...NO SVR TSTM AREAS FORECAST...
...THE WEST...
A LARGE UPPER TROUGH MOVING INLAND ACROSS THE PAC NW AND SEVERAL
SMALLER/WEAKER FEATURES AROUND THE PERIPHERY OF THIS TROUGH CONTINUE
TO SUPPORT ONGOING SHOWERS AND THUNDERSTORMS. CONVECTION PERSISTS
ACROSS PARTS OF WA/ORE/NRN ID...AND ALSO FROM MT SWD ACROSS THE CO
FRONT RANGE INTO AZ/NM. WHILE THE SHOWERS AND STORMS WILL CONTINUE
INTO THE EVENING...A SLOW DECREASE IN COVERAGE IS EXPECTED...IN
CONJUNCTION WITH THE ONSET OF DIURNAL STABILIZATION.
...THE EAST...
A FEW SHOWERS/STORMS PERSIST ACROSS OK/TX...BUT THE MORE WIDESPREAD
CONVECTION IS ONGOING ACROSS THE OH/MID AND LOWER MS/TN VALLEYS AND
VICINITY -- AHEAD OF A SLOW-MOVING UPPER LOW NOW LOCATED CENTERED
OVER THE MID MS/LOWER OH VALLEYS. WHILE CONVECTION SHOULD DIMINISH
WITH TIME...SCATTERED STORMS/STORM CLUSTERS MAY LOCALLY PERSIST
THROUGH THE END OF THE PERIOD. GENERALLY MODEST FLOW ALOFT SHOULD
PRECLUDE APPRECIABLE SEVERE THREAT...THOUGH AN
ISOLATED/MARGINALLY-SEVERE HAIL/WIND EVENT MAY STILL OCCUR IN THE
MID MS/TN/LOWER OH VALLEY REGION OVER THE NEXT COUPLE OF HOURS.
ELSEWHERE...CONVECTION OVER FL SHOULD DIMINISH THIS EVENING...WHILE
SHOWERS AND A LIGHTNING STRIKE OR TWO MAY OCCUR INVOF THE COASTAL
CAROLINAS THROUGH THE END OF THE PERIOD AS A WEAK UPPER LOW LINGERS
OFF THE COAST.
..GOSS.. 09/07/2009
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z
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