Blizzard in Alaska, November 5, 2007

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
241 PM AST MON NOV 5 2007

.DISCUSSION...
WEAK FLOW ALOFT WILL PERSIST OVER NORTHERN ALASKA THROUGH
TUE...WITH SOUTHERLY FLOW INCREASING TUE NIGHT AS RIDGING BEGINS
TO BUILD OVER THE GULF OF ALASKA AND THE INTERIOR OF NORTHERN
ALASKA TUE NIGHT. THIS WILL SIGNAL THE BEGINNING OF ANOTHER
PERIOD OF CHINOOK WINDS THROUGH THE ALASKA RANGE. MAXIMUM
GUSTS ARE LIKELY TO APPROACH ADVISORY LEVELS TUE NIGHT
THROUGH WED NIGHT.

BLIZZARD CONDITIONS ARE IN PROGRESS IN ZONE 203 WITH
GUSTS TO 35 KT AT DEADHORSE AND TO 40-45 KT AT THE
PRUDHOE BAY TIDE GAGE. LITTLE CHANGE EXPECTED THROUGH
MIDNIGHT...A SMALL DECREASE EXPECTED LATE TONIGHT
INTO TUE AS THE HIGH OVER THE BEAUFORT RECEDES TO THE
NORTHEAST.

COASTAL HAZARD POTENTIAL...EXTENDED PERIOD OF NORTHEAST WINDS
30-45 KT EXPECTED OVER THE SAINT ISLAND AREA AND IN PKZ210
TUE NIGHT THROUGH FRI NIGHT. THIS DURATION AND SPEED OF THE
WINDS MAY CAUSE HIGH SURF AND/OR COASTAL EROSION PROBLEMS AT
SAVOONGA. SEAS TO 12-13 FT ARE LIKELY WITH THESE WIND SPEEDS
WITH AVAILABLE LENGTH AND DURATION OF FETCH. WINDS ARE EXPECTED
TO BE CONSIDERABLY LESS AT SHISMAREF AND WE DO NOT ANTICIPATE
PROBLEMS THERE AT THIS TIME.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
BLIZZARD WARNING FOR AKZ203.

HEAVY FREEZING SPRAY WARNING FOR PKZ225-PKZ230-PKZ235.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ220-PKZ225-PKZ230-PKZ235.

GALE WARNING FOR PKZ210.

BRISK WIND ADVISORY FOR PKZ240-PKZ245.
&&

RF NOV 07