SPC AC 080557
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1257 AM CDT WED OCT 08 2008
VALID 101200Z - 111200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
HIGH PRESSURE BUILDING SEWD THROUGH THE ERN STATES WILL CONTRIBUTE
TO OFFSHORE FLOW OVER MOST OF THE GULF. HOWEVER...ELY ONSHORE FLOW
OVER THE WRN GULF WILL CONTRIBUTE TO PARTIALLY MODIFIED GULF AIR
RETURNING WWD THROUGH S TX. THE LARGE SCALE PATTERN WILL UNDERGO
SIGNIFICANT AMPLIFICATION WITH A BROAD UPPER LOW EVOLVING OVER THE
WRN U.S. AND A CORRESPONDING RIDGE OVER THE ERN STATES. AT THE
SURFACE A STRONG BAROCLINIC ZONE WILL DROP SWD THROUGH THE NRN
ROCKIES INTO THE NRN PLAINS. LEE TROUGH WILL EXTEND FROM A SURFACE
LOW OVER THE CNTRL PLAINS SWD THROUGH THE CNTRL AND SRN HIGH PLAINS.
MOISTURE RETURN WILL REMAIN TOO LIMITED FOR A THREAT OF SEVERE
STORMS. HOWEVER...COLD AIR ALOFT AND STEEP LAPSE RATES WILL SUPPORT
THUNDERSTORMS ALONG BAROCLINIC ZONE FROM PARTS OF NV THROUGH UT...ID
AND MT. SEA BREEZE STORMS WILL BE POSSIBLE SOUTH OF FRONT ACROSS
CNTRL AND S FL.
..DIAL.. 10/08/2008
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z
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