SWODY2
SPC AC 050549
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1149 PM CST WED MAR 04 2009
VALID 061200Z - 071200Z
...NO SVR TSTM AREAS FORECAST...
...MID-MO VALLEY...
AN UPPER-LEVEL TROUGH IS FORECAST TO AMPLIFY FRIDAY AND MOVE INTO
THE FOUR CORNERS REGION FRIDAY NIGHT AS SOUTHWEST FLOW REMAINS IN
PLACE ACROSS THE CNTRL STATES. AT THE SFC...A LOW SHOULD ORGANIZE
AHEAD OF THE SYSTEM IN THE CNTRL PLAINS WITH A LOW-LEVEL JET
STRENGTHENING ACROSS THE OZARKS FRIDAY NIGHT. A COLD FRONT IS
FORECAST TO MOVE SWD INTO THE CNTRL PLAINS WITH THUNDERSTORMS
DEVELOPING NORTHEAST OF THE LOW AND ALONG THE BOUNDARY AFTER
MIDNIGHT. FORECAST SOUNDING LATE FRIDAY NIGHT SUGGEST THIS ACTIVITY
WILL BE ELEVATED WITH THE MODELS EXPANDING THE CONVECTION EWD FROM
SE NEB AND NE KS INTO SW IA AND NW MO BY LATE IN THE PERIOD. THE
ACTIVITY SHOULD BE LOCATED ON THE NERN END OF A PLUME OF STEEP
MID-LEVEL LAPSE RATES. THIS ALONG WITH STRONG VERTICAL SHEAR SHOULD
BE SUFFICIENT FOR A MARGINAL HAIL THREAT LATE FRIDAY NIGHT.
..BROYLES.. 03/05/2009
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