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Alaska Extended Forecast Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1612Z Oct 12, 2014)
 
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Abbreviations and acronyms used in this product
 
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ALASKA EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1212 PM EDT SUN OCT 12 2014

VALID 12Z THU OCT 16 2014 - 12Z MON OCT 20 2014


USED THE SLIGHTLY OLDER 12Z/11 VERSION OF THE OPERATIONAL ECMWF
FOR THIS FORECAST PACKAGE. THE 00Z/12 ECMWF BROKE ITS STELLAR
CONTINUITY A BIT BY LIFTING THE POST-TROPICAL CENTER OF VONGFONG
SLIGHTLY NORTH OF THE WESTERN ALEUTIANS. THE 00Z/12 PARALLEL
GFS--SO FAR A PROMISING UPGRADE FROM THE OPERATIONAL GFS--TRENDED
SOUTH WITH VONGFONG, IN LINE WITH THE LONG-RUNNING THEME OF THE
EUROPEAN CENTRE. OTHERWISE, THE DISPERSION OF VONGFONG SHOULD
SHARPEN--AND THEREBY RETROGRADE--THE TROUGH OVER THE NORTHEASTERN
PACIFIC OCEAN, OPENING THE DOOR FOR INCREASING MOISTURE AND
STORMINESS INTO THE PANHANDLE. THE WHOLESALE INCORPORATION OF AIR
FROM THE LOWER LATITUDES SHOULD WARM THE PANHANDLE
REGION--BUILDING A NEW LONGWAVE RIDGE OVER THE INTERIOR BY MONDAY
OCTOBER 20.


CISCO