Brisk Wind Advisory 17, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
1248 PM AKST THU JAN 9 2014

.DISCUSSION...
A COLD UPPER LOW NORTH OF BANKS ISLAND IS PROGGED BY CURRENT
MODELS TO WOBBLE AROUND CYCLONICALLY OVER THE WESTERN CANADA
ARCHIPELAGO AND EASTERN BEAUFORT SEA INTO THE WEEKEND. SEVERAL
WEAK UPPER TROUGHS MOVING AROUND THE UPPER LOW WILL SPREAD THE
COLD AIR SOUTHWARD ACROSS THE NORTHERN ALASKA MAINLAND THROUGH
THE WEEKEND. BY SUN...850 MB TEMPERATURES ARE EXPECTED TO BE
COLDER THAN -20C OVER MUCH OF THE NORTHERN ALASKA MAINLAND.
COLDER SURFACE TEMPERATURES ARE EXPECTED OVER MUCH OF THE
INTERIOR AS CLOUD COVER SLOWLY DECREASES FROM THE NORTH.
BY SAT NIGHT...LOWS IN THE 30S BELOW OR COLDER ARE EXPECTED OVER
MUCH OF THE INTERIOR. THE COLDEST TEMPERATURES WILL LIKELY OCCUR
IN THE UPPER YUKON VALLEY AND SOUTHEASTERN BROOKS RANGE...
WHERE LOWS IN THE 40S BELOW AND LOCALLY AROUND 50 BELOW WILL BE
POSSIBLE.

WINDS ARE GRADUALLY PICKING UP IN ZONES 203 AND 204...WIND CHILL
EXPECTED TO DROP TO AROUND 50 BELOW TONIGHT AND FRI.

NORTHEAST GALES OVER PKZ225 AND THE OUTER WATERS OF PKZ220
ARE EXPECTED TO DECREASE LATER TONIGHT AS THE PRESSURE GRADIENT
WEAKENS SOME. NORTHEAST GALES ARE EXPECTED TO CONTINUE TONIGHT
AND FRI IN PKZ210 FROM THE BERING STRAIT TO ST LAWRENCE ISLAND AND
SOUTHWARD...WITH LOWER WIND SPEEDS IN AREAS TO THE EAST. LIGHT
OVERRUNNING SNOW CONTINUING OVER THE CENTRAL AND SOUTHERN PARTS OF
THE WEST COAST AND WESTERN INTERIOR TONIGHT... AND OVER THE
SOUTHERN PARTS OF THESE AREAS FRI. 12-HR SNOW AMOUNTS IN THESE
AREAS TONIGHT AND FRI EXPECTED TO BE LESS THAN 1 INCH. SNOWFALL
GRADUALLY DECREASING FROM THE NORTH FRI.

LIGHT SNOW CONTINUING IN THE ALASKA RANGE AND SOUTHEAST INTERIOR
TONIGHT AND FRI...TOTAL AMOUNTS UP TO 3 INCHES POSSIBLE IN PARTS
OF ZONES 224 AND 226. SNOWFALL GRADUALLY DECREASING FROM THE
NORTH FRI.

COLD AIR IS EXPECTED TO REMAIN IN PLACE OVER MUCH OF THE NORTHERN
ALASKA MAINLAND THROUGH THE MIDDLE OF NEXT WEEK. CURRENT GFS/ECMWF
RUNS INDICATE SOME MODERATION IN THE SOUTHERN INTERIOR LATER NEXT
WEEK AS MILDER AIR PUSHES NORTHWARD OUT OF THE GULF OF ALASKA.
COLD AIR WILL LIKELY REMAIN IN PLACE OVER THE NORTHERN INTERIOR
AND ARCTIC SLOPE.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
WIND CHILL ADVISORY FOR AKZ203-AKZ204.

GALE WARNING FOR PKZ210-PKZ220-PKZ225-PKZ245.

BRISK WIND ADVISORY FOR PKZ240.
&&

RF JAN 14