354
FXUS01 KWBC 292028
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
427 PM EDT FRI AUG 29 2008
VALID 00Z SAT AUG 30 2008 - 12Z SUN AUG 31 2008
A WEAK FRONT EXTENDING FROM THE LOWER GREAT LAKES SOUTHWESTWARD TO
THE SOUTHERN PLAINS WILL MOVE EASTWARD TO THE NORTHEASTERN
SEABOARD BY SATURDAY EVENING AND OFF MOST OF THE COAST BY SUNDAY
MORNING. THE SYSTEM ALSO HAS A QUASI-STATIONARY FRONT SNAKING
FROM THE MID-ATLANTIC NORTHWESTWARD TO EASTERN LAKE ONTARIO. THIS
FRONT WILL SLOWLY LIFT NORTHWARD AS A WARM FRONT ON SATURDAY INTO
SOUTHEASTERN CANADA. SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG
THE BOUNDARY WITH A LATE AFTERNOON ... EARLY EVENING MAXIMUM AREAL
COVERAGE FROM THE LOWER GREAT LAKES TO THE SOUTHERN PLAINS. A
MINIMUM AREAL COVERAGE WILL BE DURING THE EARLY MORNING ... MAINLY
OVER THE NORTHEAST TO THE MID-ATLANTIC ALONG THE STATIONARY
BOUNDARY.
MEANWHILE ... TROPICAL STORM GUSTAV IS FORECAST TO MOVE GENERALLY
NORTHWESTWARD FROM THE WESTERN CARIBBEAN INTO THE GULF OF MEXICO.
THE OUTER CIRCULATION ASSOCIATED WITH GUSTAV WILL STEER ONSHORE
FLOW OVER THE SOUTHERN TIP OF FLORIDA PRODUCING SHOWERS AND
THUNDERSTORMS PICKING UP IN INTENSITY SATURDAY EVENING INTO
SUNDAY. PLEASE CHECK WITH THE TROPICAL PREDICTION CENTER FOR THE
LATEST ON THE TRACK OF GUSTAV.
ELSEWHERE ... AN UPPER LEVEL TROUGH WILL SWING SOUTHEASTWARD
ACROSS THE WEST COAST. THE ASSOCIATED COLD FRONT WILL MOVE FROM
EASTERN WASHINGTON STATE TO THE GREAT BASIN AND THE NORTHERN
PLAINS BY SUNDAY MORNING. SCATTERED RAIN AND THUNDERSTORMS WILL
BE ASSOCIATED WITH THE SYSTEM OVER THE NORTHWEST INTO THE NORTHERN
ROCKIES/NORTHERN PLAINS. IN ADDITION ... ONSHORE FLOW OFF THE
WESTERN GULF OF MEXICO COAST AND MONSOONAL MOISTURE WILL AID IN
PRODUCING SHOWERS AND THUNDERSTORMS OVER THE SOUTHWEST ... GREAT
BASIN ... SOUTHERN ROCKIES ... AND THE LOWER RIO GRANDE VALLEY
THROUGH SUNDAY.
ZIEGENFELDER
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