790
FXUS01 KWBC 302050
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
449 PM EDT SAT AUG 30 2008
VALID 00Z SUN AUG 31 2008 - 12Z MON SEP 01 2008
HURRICANE GUSTAV IS FORECAST TO CONTINUE A STEADY NORTHWESTWARD
PROGRESSION FROM ITS CURRENT POSITION NEAR WESTERN CUBA INTO THE
CENTRAL GULF OF MEXICO BY TOMORROW AFTERNOON AS A MAJOR HURRICANE.
THEREAFTER... IT IS EXPECTED TO MAKE LANDFALL SOMEWHERE ALONG THE
CENTRAL GULF TO TEXAS GULF COAST MONDAY NIGHT. SPIRAL RAIN BANDS
ASSOCIATED WITH GUSTAV ARE ALREADY IMPACTING SOUTHERN FLORIDA AND
WILL CONTINUE TO AFFECT FOLKS ALONG THE NORTHEASTERN GULF COAST AS
GUSTAV TRACKS NORTHWEST. PLEASE REFER TO THE NATIONAL HURRICANE
CENTERS WEBSITE AT WWW.NHC.NOAA.GOV FOR THE MOST UP TO DATE
INFORMATION ON THE HURRICANE.
ELSEWHERE... THE UPPER LEVEL FLOW IS FORECAST TO BECOME VERY
AMPLIFIED AS WE HEAD INTO EARLY NEXT WEEK... WITH A STRONG TROUGH
MOVING INTO THE WEST AND LARGE RIDGE BUILDING OVER THE OHIO
VALLEY. A STRONG COLD FRONT... MOVING OUT AHEAD OF THE UPPER LEVEL
TROUGH IN THE WEST... WILL BRING A MAJOR TEMPERATURE CHANGE BEHIND
THE FRONT ON THE ORDER OF ABOUT 30 DEGREES FAHRENHEIT COLDER BY
MONDAY. UPSLOPE FLOW WILL FAVOR GREATER PRECIPITATION AMOUNTS INTO
REGIONS OF HIGHER TERRAIN SUCH AS THE NORTHERN ROCKIES AND DOWN
INTO THE WASATCH OF UTAH. ASSOCIATED PRECIPITATION SHOULD BEGIN
OVER MONTANA TONIGHT... AND SPREAD INTO THE REST OF THE ROCKIES
FOR SUNDAY ALONG WITH GUSTY WESTERLY WINDS AT THE SURFACE.
MONSOONAL MOISTURE IN THE SOUTHWEST WILL BECOME SOMEWHAT
SUPPRESSED BY MONDAY DUE TO THE UPPER TROUGH MOVING THROUGH THE
WEST... WHICH WILL HELP TO REDUCE THE COVERAGE AND INTENSITY OF
CONVECTION FIRING OVER THE SOUTHWEST.
OUT EAST... A COLD FRONT SHOULD QUICKLY SLIDE OFF THE EAST COAST
TONIGHT ALLOWING HIGH PRESSURE TO DOMINATE ACROSS THE OHIO VALLEY
AND NORTHEAST THROUGH THE REST OF THE WEEKEND INTO LABOR DAY.
EXPECT COMFORTABLY WARM TEMPERATURES AND MOSTLY CLEAR SKIES OVER
THE OHIO VALLEY INTO THE NORTHEAST WHICH SHOULD PROVE GREAT FOR
ANY OUTDOOR ACTIVITIES. FARTHER SOUTH INTO THE MID ATLANTIC
REGION... SCATTERED THUNDERSTORMS ARE LIKELY THROUGH THE LABOR DAY
WEEKEND... HOWEVER ALL DAY RAIN IS NOT ANTICIPATED.
OTTO
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page