SWODY3
SPC AC 300636
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0136 AM CDT THU OCT 30 2008
VALID 011200Z - 021200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS AND FORECAST...
LARGE-SCALE TROUGH OVER THE ERN PACIFIC WILL BEGIN TO MOVE ONSHORE
DURING THE DAY THREE PERIOD IN ADVANCE OF STRENGTHENING ZONAL UPPER
JET OVER THE CNTRL PACIFIC. MEANWHILE...UPPER LOW OVER THE CNTRL
GULF COAST WILL DRIFT SLOWLY SEWD. IN THE LOW LEVELS...SURFACE HIGH
PRESSURE WILL SHIFT EWD THROUGH THE LOWER GREAT LAKES WITH RIDGE
AXIS EXTENDING SWWD INTO THE GULF OF MEXICO. FARTHER W...A LEE
TROUGH WILL BE MAINTAINED OVER THE HIGH PLAINS REGION.
HEIGHT FALLS/DYNAMIC COOLING ASSOCIATED WITH UPPER TROUGH WILL
SPREAD INLAND INTO INTERIOR PORTIONS OF THE PACIFIC NW AND NRN GREAT
BASIN...SUPPORTING WEAK AIR MASS DESTABILIZATION. WHILE MUCH OF THE
PRECIPITATION ASSOCIATED WITH THIS SYSTEM WILL BE STRATIFORM OR
SHALLOW CONVECTION...A FEW DEEPER CONVECTIVE ELEMENTS WILL BE
POSSIBLE WITH THE POTENTIAL FOR SOME LIGHTNING. HOWEVER...NO SEVERE
WEATHER IS FORECAST THROUGH THE PERIOD.
..MEAD.. 10/30/2008
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