Small Craft Advisory 161, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
621 AM AKDT WED NOV 2 2011

.DISCUSSION...

ALOFT...
A DEEP 480 DM LOW NEAR 80N/150W HAS A LONG WAVE TROUGH SOUTH OVER
MAINLAND ALASKA. THE TROUGH WILL PROGRESS INTO NW CANADA BY WED AS
A LONG WAVE RIDGE BUILDS OVER MAINLAND ALASKA WED AND THU. THE NEXT
LONG WAVE TROUGH WILL MOVE INTO THE BERING SEA WED AND THU.

SURFACE...
A 995 MB LOW 200 NM NORTHWEST OF PRUDHOE BAY WILL MOVE 300 NM
NORTH OF DEMARCATION POINT AS A 995 MB LOW BY 4AM WED AND THEN
CONTINUE NORTHEAST. THIS LOW IS WEAKER THAN WAS PREVIOUSLY
FORECAST AND THE WINDS HAVE BEEN MUCH LESS THAN PREVIOUS FORECASTS
INDICATED. STILL EXPECT LOCAL BLIZZARD CONDITIONS ON THE ARCTIC
COAST WITH THIS STORM FOR ZONE 204 THROUGH WEDNESDAY AFTERNOON.

THERE HAVE BEEN SOME BREACHES IN THE SEAWALL OF BARROW WITH SOME
FLOODING ON LOW LYING ROADS. THE WINDS ARE EXPECTED TO DECREASE AND
BECOME MORE SOUTHWESTERLY LATE THIS MORNING INTO THE AFTERNOON ENDING
THE COASTAL FLOOD THREAT FOR THE BARROW AREA.

SNOW HAS TAPERED OFF OVER ZONE 224 AND EASTERN 226, CANCELED WINTER
WEATHER ADVISORIES FOR THOSE ZONES.

A STRONG LOW WILL MOVE INTO THE CENTRAL BERING SEA ON THU MORNING
AND INTO THE EASTERN BERING AS A 975 MB LOW BY 4PM THU. THIS WILL
BRING STRONG EAST WINDS TO THE WEST COAST OF ALASKA THU INTO FRI
AND POSSIBLE BLIZZARD CONDITIONS.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
BLIZZARD WARNING FOR AKZ204.

SMALL CRAFT ADVISORY FOR PKZ230.

GALE WARNING FOR PKZ210-PKZ245.

BRISK WIND ADVISORY FOR PKZ235-PKZ240.
&&

JK NOV 11