Small Craft Advisory 12, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
148 PM AKDT TUE MAY 13 2014

.DISCUSSION...STRONG TROUGH MOVING EAST WILL PRODUCE WIND GUSTS TO
40 MPH FOR ZONE 204 TONIGHT. A GALE WILL BE IN EFFECT TONIGHT FOR
MARINE ZONE 245. OTHER AREAS WILL BE EFFECTED BY THE WINDS BUT TO
A LESSER EXTENT. BRISK WIND ADVISORIES WILL BE IN EFFECT FOR THE
OTHER NORTH SLOPE MARINE ZONES TONIGHT AND WEDNESDAY. WINDS ACROSS
THE CENTRAL TO EAST INTERIOR WILL GUSTS TO 30 MPH TONIGHT BUT THEN
DIMINISH WEDNESDAY MORNING. SNOW ACROSS THE EASTERN BROOKS WILL
DIMINISH TONIGHT WITH LOCAL ACCUMULATIONS OF AROUND 5 INCHES.

AFTER THE TROUGH PASSES EAST OF ALASKA...HIGH PRESSURE WILL BUILD
IN WITH CENTER OF 577 DM OVER BRISTOL BAY WEDNESDAY AFTERNOON. A
SHORT WAVE WILL MOVE EAST ACROSS THE NORTH SLOPE WEDNESDAY NIGHT
AND THURSDAY. EFFECTS FROM THIS WAVE WILL BE ALMOST ENTIRELY ALONG
THE THE NORTH SLOPE. ANOTHER SHORT WAVE WILL EFFECT THE SAME AREA
FRIDAY. PRECIPITATION WITH THESE WAVES WILL BE LIGHT AND MAINLY
ALONG THE NORTH SLOPE. MODELS ARE IN DISAGREEMENT AFTER FRIDAY.
THE ECMWF BRINGS A STRONG UPPER LEVEL LOW SOUTH TO THE GULF OF
ALASKA SUNDAY. THE GFS KEEPS THE LOW OPEN AND FURTHER TO THE
NORTH.

&&

.FIRE WEATHER...RED FLAG WARNINGS IN EFFECT THIS AFTERNOON AND
EVENING FOR ZONES 221 THROUGH 226. WEST WINDS GUSTING TO 30 MPH
WITH A COLD FRONT MOVING EAST WILL DIMINISH TONIGHT. RH'S BELOW 30
PERCENT WILL RECOVER LATER IN THE EVENING. ISOLATED THUNDERSTORMS
ARE POSSIBLE OVER EXTREME SOUTHEAST 224 AND 226 THIS EVENING. ON
WEDNESDAY...THE ONLY RED FLAG WARNING WILL BE FOR ZONE 227 DUE TO
LOW RH'S AS HIGH PRESSURE BUILDS.

&&

.HYDROLOGY...NONE.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING FOR AKZ221-AKZ222-AKZ223-AKZ224-AKZ225-AKZ226-
AKZ227.

GALE WARNING FOR PKZ245.

BRISK WIND ADVISORY FOR PKZ225-PKZ230-PKZ235-PKZ240.
&&

DA MAY 14