Alaska, 2012

High Surf in Alaska, September 24, 2012

September 24, 2012 · NWS AFG · 1 event in 1 county or zone

A southwest wind of 20 to 30 mph around the backside of a 988 mb low in the southern Chukchi Sea produced a period of high surf at Kotzebue during the morning hours of the 24th. Sea levels were 2 to 3 feet above normal and beach erosion and localized minor flooding were observed on the lagoon side of the village.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 southwest wind of 20 to 30 mph around the backside of a 988 mb low in the southern Chukchi Sea produced a period of high surf at Kotzebue during the morning hours of the 24th. Sea levels were 2 to 3 feet above normal and beach erosion and localized minor flooding were observed on the lagoon side of the village. On the ocean side, minor beach erosion was observed, but no flooding was reported.

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 Sep 24, 2:22 AM AKST, 38 minutes earlier.

Area forecast discussion, Sep 24, 2:22 AM AKST, 38 minutes before
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
322 AM AKDT MON SEP 24 2012

.DISCUSSION...

ALOFT...
AN UPPER LOW CENTER NEAR CAPE LISBURNE WILL MOVE
EASTWARD...WEAKENING INTO A TROUGH NORTH OF DEMARCATION POINT
BY TUE AFTERNOON. A SOUTHWEST FLOW OVER THE INTERIOR WILL WEAKEN
THIS AFTERNOON AND BECOME LIGHT SOUTHERLY LATE TONIGHT. A WEAK
RIDGE WILL MOVE NORTHWARD TO EXTEND FROM THE SEWARD PENINSULA
EAST TO THE CANADA BORDER MON NIGHT AND REMAIN IN PLACE THROUGH
WED.

SURFACE...A TIGHT 986 MB LOW NORTHWEST OF CAPE LISBURNE WILL
WEAKEN TO A 1002 CENTER NEAR BARROW BY 4 AM TUE...THEN
BECOMING A RAPIDLY WEAKENING TROUGH AS IT CONTINUES EASTWARD.

COASTAL HAZARD POTENTIAL...
WINDS ALONG THE AKZ210 COAST ARE ONLY LIGHT SOUTHWESTERLY.
HIGH SURF ADVISORY FOR AKZ210 WILL BE CANCELED. IN THE
KOTZEBUE AREA...SOUTHWEST WINDS AROUND 20 MPH WILL GRADUALLY
DIMINISH DURING THE DAY AND NO HIGH SURF ISSUES ARE EXPECTED.
THE HIGH SURF ADVISORY FOR AKZ209 WILL BE CANCELED. ALONG THE
CHUKCHI COAST NORTHWEST OF CAPE KRUSENSTERN...SOUTHWEST WINDS
AROUND 30 MPH WITH HIGHER GUSTS WILL CONTINUE THROUGH MOST OF THE
DAY AND THE HIGH SURF ADVISORY WILL REMAIN IN EFFECT FOR THIS AREA
TODAY. TIDE GAGE AT RED DOG PORT IS INDICATING TIDES ABOUT 2 FEET
ABOVE NORMAL. NORTH TO NORTHEAST GALES ARE EXPECTED TO DEVELOP
OVER PKZ200-PKZ210 BY TUE EVENING AS A 976 MB LOW MOVES INTO THE
SOUTHEAST BERING SEA.

&&

.HYDROLOGY...
A FLOOD WARNING REMAIN IN EFFECT FOR THE NENANA RIVER FROM THE
REX BRIDGE TO THE TANANA RIVER. MINOR FLOODING NEAR THE CITY OF
NENANA IS EXPECTED TO CONTINUE FOR THE NEXT FEW DAYS. THE LOWER
REACHES OF THE NENANA RIVER WILL REMAIN AT FLOOD LEVEL THROUGH
TUESDAY DUE TO THE LONG CREST AT HEALY WHICH HAS SPREAD OUT OVER
THE WIDE FLAT VALLEY. NO RECENT REPORTS ARE AVAILABLE FROM THE
GAGE ON THE TANANA RIVER AT NENANA...THE LAST REPORT WAS 11.3
FEET AT AROUND 10 AM SUNDAY MORNING.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...

FLOOD WARNING FOR THE NENANA RIVER FROM THE REX BRIDGE TO
THE TANANA RIVER.

HIGH SURF ADVISORY FOR AKZ207.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ210-PKZ215-PKZ230-
PKZ235-PKZ240-PKZ245.

GALE WARNING FOR PKZ220-PKZ225-PKZ230.

&&

RF SEP 12

Event by event

1 high surf. Local standard time, as filed.

High Surf, Baldwin Pen. & Selawik Valley

When
September 24, 3:00 AM AKST to 12:00 PM AKST
Where
Baldwin Pen. & Selawik Valley forecast zone
Reported by
NWS Employee

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.

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

The same day elsewhere

More

Every storm in Alaska in 2012Every state in 2012This day in weather historyWarnings in Alaska, September 2012

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: 407767.