DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 020529
SWODY2
SPC AC 020528

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1228 AM CDT TUE APR 02 2013

VALID 031200Z - 041200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
A SHORTWAVE TROUGH WILL MOVE SLOWLY EWD ACROSS THE SRN PLAINS
THROUGH THE PERIOD...BRINGING COOLING ALOFT AND SOME MIDLEVEL
MOISTENING. AT THE SURFACE...HIGH PRESSURE WILL CONTINUE TO BUILD
SWD ACROSS TX...BUT THE COLD FRONT WILL STALL ACROSS THE NRN GULF OF
MEXICO WHERE SURFACE WINDS WILL BE ELY. WITH WARM AND MOIST AIR
ACROSS DEEP S TX MUCH OF THE DAY...A FEW STRONG TO SEVERE STORMS MAY
OCCUR.

OVERNIGHT...A WEAK LOW PRESSURE TROUGH WILL DEVELOP OVER THE WRN
GULF OF MEXICO...AND WILL EXTEND NWD INTO SRN LA WITH THUNDERSTORMS
REDEVELOPING AND POSSIBLY AFFECTING COASTAL AREAS.

..DEEP S TX DURING THE DAY...
MID TO UPPER 60S F BOUNDARY LAYER DEWPOINTS WILL EXIST ACROSS DEEP S
TX FOR MUCH OF THE DAY BEFORE THE COLD FRONT PASSES DURING THE
AFTERNOON. WITH HEATING...INSTABILITY WILL INCREASE BUT CAPPING
AROUND 700 MB WILL LIKELY LIMIT STORM COVERAGE. FORCING FOR ASCENT
WILL BE WEAK AND SHOULD ALSO LIMIT STORM COVERAGE. INCREASING WLY
FLOW WITH HEIGHT AND STEEP LAPSE RATES ALOFT WILL CONDITIONALLY
FAVOR HAIL.

...COASTAL LA AND MS LATE...
RAIN AND STORMS WILL BE ONGOING MUCH OF THE DAY DUE TO WARM
ADVECTION...BUT WILL NOT BE SEVERE. OVERNIGHT...AS THE UPPER TROUGH
APPROACHES...WIND PROFILES WILL STRENGTHEN...AND DEWPOINTS WILL
INCREASE ACROSS SERN LA AND PERHAPS SRN MS. WHILE SOME FORECAST
SOUNDINGS SHOW A SHALLOW STABLE LAYER NEAR THE SURFACE...A FEW
ROTATING STORMS MAY EXIST OVER THE WATER...AND POSSIBLY THREATEN
COASTAL AREAS EARLY THU MORNING.

..JEWELL.. 04/02/2013

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