Wind Chill Advisory 20, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FAIRBANKS AK
1241 PM AKST SAT FEB 16 2013

.DISCUSSION...
990 MB LOW CROSSING THE EASTERN ALEUTIANS NEAR DUTCH HARBOR AT
9 AM SAT IS PROGGED BY CURRENT MODELS TO BECOME AN ELONGATED
CENTER THIS AFTERNOON AND EVENING...TRIPLE POINT 998-1000 MB
LOW DEVELOPING OVER THE NORTHERN GULF OF ALASKA BY 3 AM SUN AND
DEEPENING TO 997 MB BY 9 AM SUN AS THE REMAINING LOW CENTER.
THE LOW WILL THEN MOVE TO SOUTH OF YAKUTAT BY 3 PM MON AS IT
FILLS TO 1003-1005 MB. CURRENT GFS/NAM/ECMWF RUNS ARE IN GENERALLY
GOOD AGREEMENT ON THE HANDLING OF THIS SYSTEM. FLURRIES OVER
PARTS OF THE CENTRAL AND EASTERN INTERIOR ARE EXPECTED TO END
BY THIS EVENING. SNOW WILL REDEVELOP OVER THE ALASKA RANGE LATE
TONIGHT AND OVER MOST OF THE CENTRAL AND EASTERN INTERIOR AND THE
CENTRAL/EASTERN BROOKS RANGE AND ARCTIC SLOPE SUNDAY AS THE LOW
PUMPS MOISTURE NORTHWARD...OVERRUNNING COLDER AIR NEAR THE
SURFACE. LOW LEVEL UPSLOPE FLOW ALONG THE ALASKA RANGE AND IN
ZONES 223-224 WILL PROVIDE SOME ENHANCEMENT TO THE SNOWFALL.
HEAVIEST AMOUNTS THROUGH MON COULD AROUND 2 INCHES ALONG
AND NEAR THE ALASKA RANGE.

A 1040 MB HIGH CENTERED OVER EASTERN SIBERIA WILL MOVE
SLOWLY EASTWARD TO THE CENTRAL BEAUFORT SEA BY 3 PM MON.
WIND CHILL CONDITIONS IN ZONE 201 ARE EXPECTED TO
DIMINISH AFTER MIDNIGHT TONIGHT AS THE HIGH MOVES EAST AND
WINDS IN ZONE 201 DIMINISH TO AROUND 10 MPH. ELSEWHERE
ALONG THE ARCTIC COAST...WINDS WILL REMAIN LIGHT.
BRISK N WINDS AND LOW WIND CHILL DEVELOPING IN ZONES
206 PASSES SUN CONTINUING INTO SUN NIGHT.
NO SIGNIFICANT WEATHER EXPECTED ALONG THE WEST COAST.

COLD UPPER LOW CENTERED OVER THE WESTERN INTERIOR WILL LIKELY
SLOWLY OPEN UP INTO A TROUGH WITH AXIS ALONG THE ALCAN BORDER BY
18Z TUE. TEMPERATURES OVER THE EASTERN INTERIOR WILL COOL BY
MONDAY AS THE TROUGH MOVES EAST. TEMPERATURES ALOFT OVER THE WEST
COAST MAY MODERATE A LITTLE BIT AS A WEAK UPPER RIDGE BUILDS OVER
THE AREA...BUT NOT MUCH CHANGE IS LIKELY IN SURFACE TEMPERATURES.
EASTERN INTERIOR TEMPERATURES LIKELY TO DROP TO THE 20S TO AROUND
30 BELOW BY TUE MORNING AS THE COLD AIR MOVES EAST.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
WIND CHILL ADVISORY FOR AKZ201.

WIND CHILL FOR AKZ206.

&&

FEB 13