Prognostic Meteorological Discussion
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000
FXUS01 KWBC 012100
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
456 PM EDT FRI AUG 01 2014

VALID 00Z SAT AUG 02 2014 - 00Z MON AUG 04 2014

...RAIN EXPECTED TO MOVE UP THE IMMEDIATE EAST COAST DURING THE
WEEKEND WHILE FINE WEATHER CONTINUES ACROSS THE MID-SECTION OF THE
COUNTRY...

...SHOWERS AND THUNDERSTORMS EXPECTED NEAR A STALLED FRONT ALONG
THE GULF COAST WESTWARD INTO THE SOUTHERN ROCKIES AND PARTS OF THE
DESERT SOUTHWEST...

A LARGE-SCALE UPPER-LEVEL TROUGH OVER THE EASTERN U.S. HAS
WEAKENED BUT ITS AXIS HAS CONTINUED TO ANCHOR OVER THE SAME
GENERAL AREA.  SOUTHWESTERLY FLOW AHEAD OF THE TROUGH AXIS HAS
BEGUN TO TRANSPORT MOISTURE FROM THE GULF OF MEXICO AND WESTERN
ATLANTIC.  AS THE MOISTURE SURGES NORTHWARD, WEAK LOW PRESSURE
CENTERS ARE FORECAST TO FORM AND MOVE UP A STALLED FRONT LYING
NEAR OR JUST OFF THE EAST COAST.  IT APPEARS THAT MOST OF THE
HEAVIER RAINS SHOULD SKIRT ALONG THE COASTAL SECTIONS WHILE MORE
SCATTERED ACTIVITIES ARE FORECAST FOR THE INTERIOR THROUGH THE
WEEKEND.  MEANWHILE, SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO CONTINUE FARTHER SOUTH IN FLORIDA, THE GULF COAST, AS
WELL AS THE SOUTHERN ROCKIES INTO PARTS OF THE DESERT SOUTHWEST IN
THE VICINITY OF THE STALLED FRONT.  MORE CONCENTRATED ACTIVITIES
CAN BE EXPECTED NEAR A LOW PRESSURE CENTER IN THE LOWER
MISSISSIPPI VALLEY AS WELL AS IN THE SOUTHERN ROCKIES.

NORTH OF THE STALLED FRONT, THE MID-SECTION OF THE COUNTRY SHOULD
ENJOY FINE WEATHER WITH SLIGHTLY COOLER THAN NORMAL TEMPERATURES
DURING THE WEEKEND.  A COLD FRONT MOVING IN FROM CANADA SHOULD
TRIGGER SCATTERED SHOWERS AND THUNDERSTORMS IN THE NORTHERN PLAINS
AND INTO THE UPPER MIDWEST.

OUT WEST, ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS CAN BE
EXPECTED ACROSS MUCH OF THE INTERIOR MOUNTAINS WITH MOST
ACTIVITIES IN THE LATE AFTERNOON AND EARLY EVENING HOURS.  THE
NORTHERN ROCKIES, THE PACIFIC NORTHWEST, AND THE IMMEDIATE WEST
COAST SHOULD REMAIN DRY THROUGH THE WEEKEND.  TEMPERATURES AS MUCH
AS 10 DEGREES ABOVE NORMAL ARE EXPECTED TO MOVE INTO NORTHERN
MONTANA BY SUNDAY WITH ISOLATED SHOWERS AND THUNDERSTORMS.

KONG


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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