377
ACUS01 KWNS 130030
SWODY1
SPC AC 130028
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0728 PM CDT MON AUG 12 2013
VALID 130100Z - 131200Z
...NO SVR TSTM AREAS FORECAST...
...NRN HIGH PLAINS INTO OK...
ISOLATED THREAT FOR LARGE HAIL AND DAMAGING WINDS WILL EXIST FOR A
FEW HOURS AFTER SUNSET. HOWEVER...ORGANIZED THUNDERSTORM DEVELOPMENT
WILL BECOME LESS PROBABLE DURING THE NIGHT...WITH LOCALLY HEAVY RAIN
THE PRIMARY HAZARD.
...ARKLATEX INTO THE UPPER OH VALLEY...
UPPER SHORTWAVE TROUGH WILL MOVE E ALONG THE OH RIVER TONIGHT.
FORCING FOR ASCENT ASSOCIATED WITH THIS FEATURE COMBINED WITH WEAK
TO MODERATE CAPE WILL SUSTAIN A FEW STORMS AFTER DARK FROM THE TN
VALLEY INTO THE UPPER OH VALLEY...BUT THE SEVERE THREAT IS EXPECTED
TO BE LOW DUE TO A COOLING/STABILIZING BOUNDARY LAYER. LINE OF
STORMS FROM THE ARKLATEX INTO THE MID-SOUTH ARE ALSO EXPECTED TO
WEAKEN SHORTLY AFTER SUNSET.
...DELMARVA/MID-ATLANTIC REGION...
LATEST MODEL GUIDANCE SHOWS A WEAK SURFACE LOW MIGRATING INTO THE
DELMARVA/MID-ATLANTIC REGION TONIGHT. LOW-LEVEL WINDS MAY BACK IN
RESPONSE TO THIS FEATURE...WHICH WILL ENHANCE SHEAR PROFILES AND
POSSIBLY AID IN WEAK UPDRAFT ROTATION FOR STORMS THAT DEVELOP DURING
TUESDAY MORNING. HOWEVER...WEAK LAPSE RATES AND BUOYANCY ARE
EXPECTED TO PRECLUDE ANYTHING MORE THAN A MARGINAL THREAT FOR STRONG
THUNDERSTORM WINDS.
..GARNER.. 08/13/2013