973
FXUS01 KWBC 041945
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
344 PM EDT SAT OCT 04 2008
VALID 00Z SUN OCT 05 2008 - 12Z MON OCT 06 2008
A DEEP UPPER LEVEL TROUGH WILL MOVE FROM THE WEST COAST TO THE
HIGH PLAINS BY MONDAY MORNING. SOME OF THE UPPER LEVEL ENERGY
WILL CATCH UP TO A FRONTAL SYSTEM OVER THE CENTRAL/SOUTHERN HIGH
PLAINS AND THE BOUNDARY WILL SLOWLY MOVE OUT TO THE
SOUTHERN/CENTRAL PLAINS ALSO BY MONDAY. UNDER THE UPPER TROUGH
... SCATTERED RAIN WILL DEVELOP FROM THE NORTHERN INTERMOUNTAIN
REGION SOUTHWARD TO PARTS OF THE SOUTHWEST AND WILL MOVE WITH THE
TROUGH EASTWARD TO THE ROCKIES BY SUNDAY EVENING. AT THE HIGHEST
ELEVATIONS ... ROUGHLY 9000 FT AND ABOVE ... WET SNOW AND/OR RAIN
AND SNOW MIXED WILL DEVELOP OVER THE MOUNTAINS. IN ADDITION ...
RAIN AND SHOWERS/THUNDERSTORMS WILL DEVELOP OVER THE
SOUTHERN/CENTRAL PLAINS SUNDAY EVENING INTO MONDAY. SOME OF THE
THUNDERSTORMS MAY BECOME SEVERE.
MEANWHILE ... BY SUNDAY MORNING ... SHOWERS AND THUNDERSTORMS WILL
DEVELOP OVER PARTS OF THE MIDWEST SPREADING INTO RAIN FROM THE
NORTHERN PLAINS ACROSS PARTS OF THE GREAT LAKES AND INTO SOUTHERN
NEW ENGLAND BY MONDAY MORNING. UPPER LEVEL ENERGY ROTATING AROUND
AN UPPER LEVEL TROUGH OVER THE NORTHEASTERN QUADRANT OF THE
COUNTRY ALONG WITH FAVORABLE UPPER LEVEL JET DYNAMICS WILL
CONTRIBUTE TO THIS PRECIPITATION.
ELSEWHERE ... AN OLD FRONT NEAR SOUTHERN FLORIDA WILL AID IN
TRIGGERING SHOWERS AND THUNDERSTORMS OVER THE SOUTHERN AND EASTERN
PARTS OF THE PENINSULA THROUGH MONDAY.
ZIEGENFELDER
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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