Sunday, October 7, 2007

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 080102
SWODY1
SPC AC 080059

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0759 PM CDT SUN OCT 07 2007

VALID 080100Z - 081200Z

..NO SVR TSTM AREAS FORECAST...

..WRN UPPER GREAT LAKES REGION SWWD INTO WRN OK/THE TX PNHDL...
THUNDERSTORMS ARE FORECAST TO CONTINUE ACROSS THE CENTRAL U.S.
THROUGH THE PERIOD...AS COLD FRONT CONTINUES MOVING EWD/SEWD ACROSS
THE PLAINS AHEAD OF UPPER TROUGH MOVING INTO THE CENTRAL CONUS.
STORMS ARE ONGOING ATTM -- BOTH WITHIN ZONE OF ELEVATED INSTABILITY
TO THE COOL SIDE OF THE SURFACE FRONT AS WELL AS ALONG AND AHEAD OF
THE BOUNDARY WITHIN THE WARM SECTOR -- WHERE GENERALLY 500 TO 1000
J/KG MIXED-LAYER CAPE IS INDICATED.

STRONGER FLOW AT MID LEVELS WILL REMAIN WELL TO THE COOL SIDE OF THE
SURFACE FRONT THROUGH THE PERIOD...WITH SHEAR ATOP THE WARM SECTOR
RELATIVELY WEAK -- AND ALIGNED ROUGHLY ALONG THE SURFACE BOUNDARY.
THIS COMBINED WITH MARGINAL WARM-SECTOR INSTABILITY AND A
DIURNALLY-STABILIZING BOUNDARY LAYER THROUGH THE REMAINDER OF THE
PERIOD INDICATE THAT THE SEVERE THREAT WILL REMAIN LOW.

.GOSS.. 10/08/2007

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