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505
FXUS02 KWNH 220444
PREEPD

PRELIMINARY EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1243 AM EDT WED OCT 22 2014

VALID 12Z SAT OCT 25 2014 - 12Z WED OCT 29 2014


WITH THE RAPID AND SUBSTANTIAL CHANGES TO THE FLOW INDICATED
ACROSS CENTRAL NORTH AMERICA AT THE MEDIUM RANGE, RELIED ONCE
AGAIN ON THE MOST RECENT ENSEMBLE MEANS AS A SYNOPTIC GUIDE THIS
FORECAST PACKAGE. A COMPLEX TRANSITION FROM MERIDIONAL TO ZONAL
FLOW IS THE DOMINANT THEME AMONG THE VARIOUS OPERATIONAL SOLUTIONS
AND ENSEMBLE GUIDANCE. THE PATTERN FOR THE CONTIGUOUS UNITED
STATES STARTS OFF WET AROUND THE EDGES--THE PACIFIC NORTHWEST,
MAINE, AND SOUTHERN FLORIDA--THEN MOISTENS UP CONSIDERABLY IN THE
MIDDLE ONCE THE FIRST IN AN APPARENT SERIES OF PROGRESSIVE TROUGHS
IRONS OUT THE FLOW AND RE-OPENS THE GULF OF MEXICO. BY FAR, THE
PACIFIC NORTHWEST--ESPECIALLY FROM THE COAST TO THE CREST OF THE
CASCADES--LOOKS THE WETTEST. ALL THE PACIFIC AIR WILL MAKE FOR A
MILD STRETCH ACROSS THE ENTIRE NATION.


CISCO

$$






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