769
FXAK69 PAFG 182156
AFDAFG
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
1256 PM AKST TUE FEB 18 2025
SYNOPSIS
A SYSTEM LIFTING NORTHWESTWARD OUT OF THE ALEUTIANS WILL BRING
SNOW AND BLOWING SNOW TO THE YK DELTA TODAY INTO WEDNESDAY MORNING.
ADDITIONALLY, STRENGTHENING SURFACE PRESSURE GRADIENTS WILL BRING
STRONG WINDS TO THE BERING STRAIT AND WESTERN COAST. WINTER
WEATHER ADVISORIES ARE IN EFFECT FOR THE BERING STRAIT COAST,
DIOMEDE, AND YK DELTA COAST. A BLIZZARD WARNING IS IN EFFECT FOR
ST LAWRENCE ISLAND ALONG THE YK COAST. WINTER STORM WARNING HAS
BEEN ISSUED FOR PORTIONS THE NULATO HILLS AND SURROUNDING AREAS
FOR 6 TO 10 INCHES OF SNOW THROUGH WEDNESDAY MORNING. STRONG WINDS
AND SOME BLOWING SNOW WILL REACH POINT HOPE TODAY INTO WEDNESDAY.
WARMER AFTERNOON TEMPERATURES WILL CONTINUE OVER THE INTERIOR
THROUGH THE WEEK.
DISCUSSION
CENTRAL AND EASTERN INTERIOR...
- GUSTY EAST WINDS AROUND 15 TO 30 MPH WILL PICK UP OVER HIGHER
TERRAIN AND SUMMITS OF THE NORTHERN INTERIOR ON WEDNESDAY.
- ABOVE AVERAGE TEMPERATURES.
WEST COAST AND WESTERN INTERIOR...
- SNOW AND BLOWING SNOW, WITH AN ADDITIONAL 4 TO 7 INCHES
POSSIBLE OVER PORTIONS OF THE YK DELTA, WITH THE HIGHEST AMOUNTS
IN THE NULATO HILLS. WINTER STORM WARNING IN EFFECT ALONG THE
NULATO HILLS.
- STRONG NORTHEASTERLY WINDS DEVELOP, ESPECIALLY OVER THE CHUKCHI
AND BERING SEAS AND ADJACENT COASTAL AREAS. BLIZZARD WARNING HAS
BEEN ISSUED FOR ST LAWRENCE ISLAND REGION ESPECIALLY NEAR
GAMBELL.
- SNOW AND BLOWING SNOW ACROSS THE BERING STRAIT AREA ARE
EXPECTED TO DEVELOP MONDAY SO WINTER WEATHER ADVISORIES HAVE
BEEN ISSUED FOR SNOW AND BLOWING SNOW.
NORTH SLOPE AND BROOKS RANGE...
- COLD TEMPERATURES CONTINUE ACROSS THE NORTH SLOPE WITH
PERSISTENT NORTHERLY FLOW.
- SNOW WILL DEVELOP OVER THE BROOKS RANGE WITH A FEW INCHES
THROUGH TONIGHT.
- STRONG WINDS AND SOME BLOWING SNOW WILL REACH POINT HOPE TUESDAY
INTO WEDNESDAY.
FORECAST DISCUSSION AND ANALYSIS...
A WARM FRONT EXTENDING FROM THIS LOW THEN LIFTS NORTHWARD ACROSS
THE STATE THROUGH THE FIRST HALF OF THE WEEK, EVENTUALLY SETTLING
OVER THE BROOKS RANGE. PERIODS OF SNOWFALL ARE LIKELY AT TIMES
ALONG THE BOUNDARY, ESPECIALLY IN THE BROOKS RANGE WHERE
OROGRAPHIC LIFTING AIDS THE LARGER SCALE FORCING. SNOW LIFTS
NORTHWARD TOWARD KOTZEBUE BY LATE TUESDAY INTO EARLY WEDNESDAY
WITH LESSER ACCUMULATIONS POSSIBLE. STRONG NORTHEASTERLY FLOW IS
EXPECTED TO DEVELOP THROUGH THE CHUKCHI AND BERING SEAS AS LOW
PRESSURE OVER THE ALEUTIANS INTENSIFIES. GUSTS BETWEEN 40 AND 50
MPH ARE POSSIBLE, LEADING TO AREAS OF BLOWING SNOW AND REDUCED
VISIBILITIES. EAST WINDS GUSTING TO 30 MPH DEVELOPS OVER THE
INTERIOR SUMMITS ON WEDNESDAY.
EXTENDED FORECAST DAYS 4-7...
THE EXTENDED LOOKS QUIET FOR THE MOST PART WITH THE POLAR JET
SHIFTING SOUTHWARD INTO THE NORTH PACIFIC. WEAK RIDGING PERSISTS
OVER THE INTERIOR WHILE WEAK WAVES MOVE UP ALONG THE WEST COAST
THURSDAY AND INTO THE WEEKEND. INCREASING PRESSURE GRADIENT KEEPS
NORTHEASTERLY FLOW STRONG ACROSS THE WESTERN INTERIOR AND COAST.
GALES LIKELY TO PERSIST ACROSS THE CHUKCHI AND BERING SEAS.
TEMPERATURES LOOK SEASONABLE IF NOT SLIGHTLY WARMER THAN AVERAGE
SOUTH OF THE BROOKS RANGE.
COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE.
AFG WATCHES/WARNINGS/ADVISORIES
AK...WINTER WEATHER ADVISORY FOR AKZ820-821.
BLIZZARD WARNING FOR AKZ824.
WINTER WEATHER ADVISORY FOR AKZ825.
BLIZZARD WARNING FOR AKZ827.
WINTER STORM WARNING FOR AKZ830.
PK...BRISK WIND ADVISORY FOR PKZ801-803.
GALE WARNING FOR PKZ802-853.
BRISK WIND ADVISORY FOR PKZ804-805-852.
GALE WARNING FOR PKZ806-807.
BRISK WIND ADVISORY FOR PKZ809.
GALE WARNING FOR PKZ810.
GALE WARNING FOR PKZ811-857.
BRISK WIND ADVISORY FOR PKZ812-858.
GALE WARNING FOR PKZ816-817-851-854-856.
GALE WARNING FOR PKZ850.
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