Skip Navigation Links weather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center

 
 

 

Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   QPF
   PQPF
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Air Quality
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/
Warnings

Satellite and Radar Imagery
   Satellite Images
   National Radar
Product Archive
WPC Verification
   QPF
   Medium Range
   Model Diagnostics
   Event Reviews
International Desks
Development and Training
   Development
WPC Overview
   About the WPC
   Staff
   WPC History
   Accomplishments
   Other Sites
   FAQs
Meteorological Calculators
Contact Us
   About Our Site
 
USA.gov is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
 
Alaska Extended Forecast Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1731Z Apr 17, 2014)
 
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
 
Abbreviations and acronyms used in this product
 
View Alaska Map


ALASKA EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
131 PM EDT THU APR 17 2014

VALID 12Z MON APR 21 2014 - 12Z FRI APR 25 2014


THE GOOD NEWS FOR THE ALASKA REGION FORECAST AT THE MEDIUM RANGE
IS THAT THE 00Z/17 ECMWF WAS CORRELATED WELL ENOUGH WITH THE
RECENT ENSEMBLE MEANS TO PREPOSSESS ITS DETERMINISTIC MASS FIELDS
FOR USE IN THE CURRENT MANUAL BLEND. BEFORE THAT ECMWF RUN, NONE
OF THE RECENT OPERATIONAL SOLUTIONS WERE STABLE ENOUGH--NOR
SUFFICIENTLY IN SYNC WITH THE MULTI-DAY MEANS--TO FORTIFY THE
STRUCTURE OF THE VARIOUS WAVES CROSSING THE NORTHEAST PACIFIC NEAR
THE REGION. THE SHIFT TO THE OPERATIONAL ECMWF THIS FORECAST
FOCUSES TWO SENSIBLE WEATHER PREDICTIONS. FIRST, WITH THE BIG
SURFACE LOW ACTUALLY CROSSING THE ALEUTIAN CHAIN INTO THE BERING
SEA MID PERIOD, PRECIPITATION, WINDS, AND SEAS ALL GO UP AS
THREATS OVER THE ISLANDS. SECOND, THE REFINEMENT OF THE WAVE TRAIN
ACROSS THE REGION NOW SHUTS OUT THE PANHANDLE FROM SIGNIFICANT
PRECIPITATION FOR MUCH OF THE MEDIUM RANGE. THE INTERIOR LOOKS DRY
AND SEASONABLY CHILLY.


CISCO