Alaska, 2003

High Wind in Alaska, February 3 to 5, 2003

February 3 to 5, 2003 · NWS AFG · 2 events in 2 counties and zones

A strong low pressure system and associated occluded front over the northern Gulf of Alaska moved north resulting in a significant pressure gradient over the Alaska Range. This gradient, coupled with the channeling affects in the narrow passes of the mountains resulted in very strong winds in these channeled areas.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS AFG wrote it up.

A strong low pressure system and associated occluded front over the northern Gulf of Alaska moved north resulting in a significant pressure gradient over the Alaska Range. This gradient, coupled with the channeling affects in the narrow passes of the mountains resulted in very strong winds in these channeled areas. Wind gusts to 67mph were recorded by the weather observer in Healy with gusts estimated up to up 63 mph along the eastern slopes of the Alaska Range.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Fairbanks, AK wrote its last area forecast discussion before the first event at Feb 3, 2:30 PM AST, 30 minutes earlier.

Area forecast discussion, Feb 3, 2:30 PM AST, 30 minutes before
NORTH ALASKA FORECAST DISCUSSION
230 PM AST MON FEB 3 2003

THE BEGINNING OF THE WARMUP IS UNDERWAY AS A BRANCH OF THE JETSTREAM
ALONG 40N LATITUDE HAS MADE ITS WAY INTO ALASKA DUE TO STRONG RIDGING
OVER THE ERN PACIFIC AND BC...WHICH ACCORDING TO MEDIUM RANGE MODELS
WILL PERSIST THROUGH THE WEEKEND.

AN ACTIVE STRING OF WX SYSTEMS WILL MOVE NORTH OVER THE AREA BEGINNING
WITH THE FIRST OCCLUSION MOVING NORTH TONIGHT. CHINOOK WINDS ARE ALREADY
PRESENT OVER THE ALASKA RANGE AND EXPECT OCCASIONAL WARNING-LEVEL WIND
GUSTS THROUGH MUCH OF THE WEEK...MUCH OF THE EASTERN INTERIOR REMAINING
DRY FROM ZONE 220 SOUTH BUT WESTERN INTERIOR GETTING A SLUG OF SNOW
WITH THIS FIRST OCCLUSION TONIGHT AND TUESDAY..THUS A SNOW WARNING FOR
ZONES 215..216..217 WHERE THERMAL BOUNDARY WILL SLOWLY MIGRATE NW AND
PROVIDE GOOD OVERRUNNING OF THE OCCLUSIONS MOIST AIR. THE ASSOCIATED
983 MB LOW OVER NORTHERN BRISTOL BAY WILL MOVE TO THE EASTERN SEWARD PEN
12Z TUE AND THEN REFORM EAST OF BARTER ISLAND TUE AFTERNOON. THE
MODERATE WINDS IN ADVANCE OF THE LOW AND AS IT PASSES WILL KEEP BLIZZARD
CONDITIONS OVER ZONE 214 TONIGHT AND 213 THROUGH TUESDAY...THEN
CONDITIONS WILL RELAX TEMPORARILY.

A 972 MB LOW SOUTH OF COLD BAY WED AM WILL MOVE TO NEAR BETHEL WED
AFTERNOON AT 983 MB AND PUSH MORE MOISTURE OVER ALASKA.  THE OCCLUSION
WITH THAT LOW WILL MOVE TO HUSLIA-TANANA-TALKEETNA WED AFTERNOON AND
MAINTAIN THE STRONG SOUTHERLY FLOW...ANOTHER SHOT OF SNOW TO THE WESTERN
INTERIOR AND MODERATE WINDS IN ADVANCE OF THE LOWS OVER THE WESTERN TWO
THIRDSA OF ALASKA.  THIS FEATURE WILL BE STRONG AND EXPANSIVE ENOUGH TO
PRODUCE EAST WINDS ON THE ARCTIC COAST TUESDAY NIGHT WHICH WILL INCREASE
WEDNESDAY WHILE COLD AIR REMAINS...SO MARGINAL BLOWING SNOW AND COOL
WIND CHILLS WEDNESDAY AND INTO WEDNESDAY NIGHT.

IN THE SHORT TERM GFS AND ETA FAIRLY SIMILAR BUT GFS DEEPER WITH LOWS
AND PREFERRED. WEAK LOW NOW NEAR BARTER ISLAND WILL DRIFT

DAYS 4-7...ECMWF IS A DAY EARLIER...SATURDAY...THAN GFS WITH PLACING A
DENT IN THE RIDGING OVER AK...SO HAVE COOLED OFF SOME INTERIOR TEMPS
SAT-MON.

.AFG...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING FOR ZONES 225..226. HEAVY SNOW WARNING FOR
ZONES 215..216..217. BLIZZARD WARNING FOR ZONES 213 AND 214.
MARINE...GALE 14..9B. BRISK WIND 10B..11A. HEAVY FREEZING SPRAY 14.

JL FEB 03

Event by event

2 high wind. Local standard time, as filed.

High Wind, Ne. Slopes of the Ern Ak Rng

When
February 3, 3:00 PM AST to February 5, 12:00 AM AST
Where
Ne. Slopes of the Ern Ak Rng forecast zone
Measured
55 kt (63 mph) estimated gust
Reported by
GOVT OFFICIAL

High Wind, Denali

When
February 3, 3:59 PM AST to February 5, 11:48 AM AST
Where
Denali forecast zone
Measured
58 kt (67 mph) measured gust
Reported by
OFFICIAL NWS OBS.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Alaska in 2003Every state in 2003This day in weather historyWarnings in Alaska, February 2003

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5340560, 5340559.