Prognostic Meteorological Discussion
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000
FXUS02 KWBC 221555
PMDEPD

EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1154 AM EDT FRI AUG 22 2014

VALID 12Z MON AUG 25 2014 - 12Z FRI AUG 29 2014


AFTER A SUMMER OF HIGH-AMPLITUDE, HIGH-IMPACT WEATHER ACROSS THE
UNITED STATES, THE UPCOMING MEDIUM-RANGE PERIOD LOOKS BENIGN IN
COMPARISON. USED THE 00Z/22 ECENS MEAN AS A SYNOPTIC GUIDE THIS
FORECAST, SIDESTEPPING THE EXTREMES DEPICTED AMONG THE VARIOUS
OPERATIONAL MODELS IN SEVERAL KEY REGIONS OF THE FLOW. THE MAJOR
PLAYER THIS PERIOD WILL BE THE COLD SYSTEM LIFTING INTO SOUTH
CENTRAL CANADA DAY 3. THIS SYSTEM WILL DRAW A GOODISH CHUNK OF THE
MONSOONAL MOISTURE NORTHEASTWARD ACROSS THE SOUTHERN ROCKIES,
SOUTHERN HIGH PLAINS, CENTRAL PLAINS, AND EVENTUALLY THE MIDWEST.
THE ONLY OTHER AREA VULNERABLE TO SIGNIFICANT RAINFALL THIS
FORECAST IS SOUTHERN FLORIDA, WHERE THE TAIL END OF THE
POSITIVE-TILT TROUGH WEDGED DOWN THE ATLANTIC SEABOARD WRINGS OUT
SUBTROPICAL MOISTURE. AT THIS TIME, EXPECT THE TROPICAL
DISTURBANCE NEAR THE VIRGIN ISLANDS TO RECURVE EAST OF THE BAHAMAS
AND SOUTHEAST UNITED STATES COAST.


CISCO

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