576
FXAK69 PAFG 191449
AFDAFG
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
549 AM AKST WED FEB 19 2025
SYNOPSIS
A SYSTEM LIFTING NORTHWESTWARD OUT OF THE ALEUTIANS WILL BRING
SNOW AND BLOWING SNOW 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. STRONG WINDS AND
SOME BLOWING SNOW WILL REACH POINT HOPE TODAY INTO WEDNESDAY.
WARMER AFTERNOON TEMPERATURES WILL CONTINUE OVER THE INTERIOR
THROUGH THE WEEK.
HIGH PRESSURE BUILDS FROM THE RUSSIAN ARCTIC TOWARDS THE ARCTIC
AND NORTHERN ALASKA AND THE RIDGE PERSISTS INTO THE WEEKEND
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 TAPERING OFF OVER PORTIONS OF THE YK
DELTA,TO THE NULATO HILLS NORTH TO LOWER YUKON VALLEY.
- 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.
- STRONG WINDS AND SOME BLOWING SNOW WILL REACH POINT HOPE TUESDAY
INTO WEDNESDAY.
FORECAST DISCUSSION AND ANALYSIS...
A WEAKENING BOUNDARY OVER THE WESTERN PORTION OF THE STAGE LIFTS
THOUGH SEWARD PENINSULA. AREAS OF SNOW ALONG THE BOUNDARY,
ESPECIALLY IN THE BROOKS RANGE WHERE OROGRAPHIC LIFTING AIDS THE
LARGER SCALE FORCING AND LIFTS NORTHWARD TOWARD KOTZEBUE 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.
THE REST OF THE NORTHERN PORTION OF THE STATE LOOKS TO HAVE QUIET
WEATHER. A CLOUDY PATTERN WITH SOME MINOR LIGHT SNOW, WHILE A GOOD
PORTION OF THE TEMPERATURES WILL BE RUNNING ABOVE NORMAL,
ESPECIALLY FOR THE INTERIOR.
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 AKZ801.
WINTER WEATHER ADVISORY FOR AKZ820-821.
BLIZZARD WARNING FOR AKZ827.
PK...BRISK WIND ADVISORY FOR PKZ801.
BRISK WIND ADVISORY FOR PKZ802>805-809-812-850-852-853-858.
GALE WARNING FOR PKZ806-807.
GALE WARNING FOR PKZ810.
GALE WARNING FOR PKZ811-816-817-851-854-856-857.
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