Prognostic Meteorological Discussion
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000
FXUS01 KWBC 230821
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
420 AM EDT THU OCT 23 2014

VALID 12Z THU OCT 23 2014 - 12Z SAT OCT 25 2014

***RAINY WEATHER CONTINUES FOR THE PACIFIC NORTHWEST***

***NOR`EASTER CONTINUES TO AFFECT NEW ENGLAND***

***HEAVY RAIN AND THUNDERSTORMS FOR SOUTH FLORIDA***

AN ACTIVE WEATHER PATTERN CONTINUES ACROSS THE PACIFIC NORTHWEST,
WITH STRONG ONSHORE FLOW BRINGING IN MOISTURE FROM THE PACIFIC
OCEAN, WITH THE GREATEST RAINFALL OVER THE COASTAL MOUNTAIN RANGES
AND THE CASCADES.  BY FRIDAY MORNING, INCREASED RIDGING ALOFT
ACROSS THE REGION SHOULD HELP TO REDUCE THE AMOUNT OF RAIN
COVERAGE.  SEVERAL INCHES OF RAINFALL IS POSSIBLE IN THESE AREAS,
AND THIS MAGNITUDE OF RAINFALL COULD LEAD TO SOME FLASH FLOODING.
ANY SNOWFALL SHOULD BE CONFINED TO THE HIGHEST ELEVATIONS OF THE
CASCADES.

SHOWERS AND A FEW THUNDERSTORMS ARE EXPECTED NEAR AND AHEAD OF A
WEAKENING FRONTAL ZONE MOVING ACROSS THE MIDWEST STATES.  ACROSS
THE NORTHEAST U.S., A SLOW MOVING COASTAL STORM WILL CONTINUE TO
BRING PERIODS OF RAIN GOING INTO EARLY FRIDAY.  BY FRIDAY EVENING,
THE CYCLONE PULLS SLOWLY AWAY FROM THE REGION AND ALLOWS FOR
IMPROVING CONDITIONS FROM WEST TO EAST.  A FEW INCHES OF RAIN IS
POSSIBLE OVER PARTS OF NEW ENGLAND THROUGH THE END OF THE WEEK.

ACROSS SOUTHERN FLORIDA AND THE KEYS, PERIODS OF HEAVY RAIN WITH
EMBEDDED THUNDERSTORMS IS FORECAST TO CONTINUE THROUGH THURSDAY
EVENING AS MOISTURE FROM A WEAK TROPICAL LOW INTERSECTS A
STATIONARY FRONT TO ITS NORTHEAST.  THE HEAVIEST RAINFALL IS
LIKELY OVER THE FLORIDA KEYS.

HAMRICK


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