Small Craft Advisory 132, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FAIRBANKS AK
417 PM AKDT TUE OCT 11 2011

UPDATED ZONE 207 TO COASTAL FLOOD WARNING

.DISCUSSION...

UPPER AIR: A TROUGH OVER THE EASTERN INTERIOR AND A RIDGE OVER THE
WEST COAST WILL MOVE EAST. BY THU MORNING THE TROUGH WILL BE EAST
OVER CANADA AND THE RIDGE WILL BE OVER CENTRAL NORTHERN ALASKA
WITH A STRONG LOW PRESSURE OVER EASTERN RUSSIA.

SURFACE: A 987 MB LOW 880 NM SOUTHWEST OF SAINT LAWRENCE ISLAND
WILL MOVE NORTHEAST. AT 4 PM AKDT THU...THE LOW WILL BE 983 MB 80
NM WEST OF GAMBELL. HIGH PRESSURE OVER THE WEST COAST WILL WEAKEN
AND MOVE INLAND TONIGHT AND WED. HIGH PRESSURE OVER THE BEAUFORT
SEA WILL WEAKEN OVER THE SOUTHERN BEAUFORT SEA WED AND WED NIGHT
AS A TROUGH FORMS ALONG THE ARCTIC COASTLINE. LOW PRESSURE WILL
DEVELOP OVER THE CHUKCHI SEA TONIGHT AND WED.

NORTH SLOPE: SOUTHEAST WINDS WILL INCREASE IN RESPONSE TO GRADIENT
BETWEEN BEAUFORT SEA HIGH AND NORTHWEST BERING SEA LOW. WINDS OVER
THE BEAUFORT SEA WILL BE SLOWER TO RESPOND AS THE HIGH OVER THE
BEAUFORT SEA IS SLOW TO MOVE NORTH.

WEST COAST: SEE STATEMENTS FOR COASTAL FLOOD WARNING FOR ZONE
207... HIGH SURF ADVISORY FOR ZONE 213... AND COASTAL FLOOD WATCH
FOR ZONE 213. ANY FLOODING IS EXPECTED TO BE MINOR. WINDS AND
WAVES WILL BE BEGIN SUBSIDING ON THU.

INTERIOR: THE SOUTHEAST INTERIOR WILL CONTINUE WITH FLURRIES OR
LIGHT SNOW DUE TO LOW OVER GULF OF ALASKA FEEDING MOISTURE INTO
COLD ADVECTION FROM NORTHWEST. ADDITIONAL ACCUMULATIONS MAY BE AS
MUCH AS 2 INCHES FOR ZONE 226

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
COASTAL FLOOD WARNING FOR AKZ207.

HIGH SURF ADVISORY FOR AKZ213.

COASTAL FLOOD WATCH FOR AKZ213.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ215-PKZ225-PKZ230-PKZ235.

GALE WARNING FOR PKZ210-PKZ220-PKZ225.
&&

DA OCT 11