SPC AC 080607
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1207 AM CST TUE NOV 08 2011
VALID 091200Z - 101200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A SHORTWAVE TROUGH WITH POTENT JETLET WILL MOVE RAPIDLY FROM THE MID
MS VALLEY NEWD ACROSS LOWER MI DURING THE DAY. AN ATTENDANT SURFACE
LOW WILL MIGRATE FROM NRN IL INTO SRN ONTARIO BY EVENING...WITH A
COLD FRONT TRAILING SWD OVER LOWER MI...WRN OH AND INTO MIDDLE TN BY
00Z. TO THE W...A LARGE AREA OF HIGH PRESSURE WILL RESULT IN COOL
AND DRY WEATHER FROM THE PLAINS INTO THE ROCKIES.
...OH/TN VALLEY REGION...
RAIN SHOWERS WITH A FEW THUNDERSTORMS SHOULD BE ONGOING NEAR THE
COLD FRONT EARLY WED FROM LOWER MI TO THE GULF COAST. FORCING FOR
ASCENT WILL BE STRONGEST NEAR THE SURFACE LOW...AND WILL LIFT NEWD
THROUGH THE DAY. A GENERALLY DRY AIR MASS CURRENTLY RESIDES OVER THE
ERN U.S...AND AS SUCH ONLY A NARROW AXIS OF LOW LEVEL MOISTURE IS
EXPECTED AHEAD OF THE COLD FRONT. AN AXIS OF LOW TO PERHAPS MID 50S
F SURFACE DEWPOINTS WILL YIELD VERY WEAK INSTABILITY...WITH UP TO
500 J/KG MUCAPE ALONG THE CNTRL GULF COAST. CAPE MAY BE NEAR ZERO N
OF THE OH RIVER. DESPITE STRONG SHEAR AND FORCING...INSTABILITY WILL
BE A DECIDEDLY LIMITING FACTOR FOR SEVERE ON WED.
..JEWELL.. 11/08/2011
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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