Prognostic Meteorological Discussion
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FXAK02 KWNH 271849
PMDAK

ALASKA EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
249 PM EDT WED AUG 27 2014

VALID 12Z SUN AUG 31 2014 - 12Z THU SEP 04 2014

MEDIUM RANGE OUTLOOK PERIOD FOR ALASKA CONTINUES TO BE A COOLER
ONE...WITH BELOW NORMAL TEMPERATURES. THE 700MB HEIGHT ANOMALIES
WILL BE 2-3 STANDARD DEVIATIONS BELOW NORMAL FOR MOST OF THE
PERIOD---ALONG AND NORTH OF THE ARCTIC CIRCLE. 500MB HEIGHT
ANOMALIES WILL BE ON THE ORDER OF 2-4 STANDARD DEVIATIONS BELOW
NORMAL---ALONG AND NORTH OF THE ARCTIC CIRCLE.

THE EUROPEAN CENTRE SOLUTION FOR THE ARCTIC LOW TO DESCEND TO THE
NORTH SLOPE OF ALASKA ALLOWS FOR A PROLONGED PERIOD OF UPPER-LEVEL
TROUGHING ALONG 155W LONGITUDE FROM THE ARCTIC OCEAN TO THE
NORTHWEST GULF OF ALASKA. 850MB TEMPERATURES WILL LIKELY REMAIN
AT/BELOW ZERO CELSIUS ACROSS MUCH OF THE STATE BETWEEN SUNDAY AND
TUESDAY, AND AT/BELOW MINUS-5 CELSIUS FOR MOST OF THIS DAY 4-8
PERIOD BETWEEN THE BROOKS RANGE AND NORTH COAST.

VOJTESAK

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