Alaska, 2008

Heavy Snow and High Wind in Alaska, October 9 to 10, 2008

October 9 to 10, 2008 · NWS AFC · 3 events in 3 counties and zones

An intense north Pacific storm produced high wind across south central Alaska along with heavy snow along the Alaska Range and freezing rain in the Kuskokwim Delta. Gusts reached 100 mph in Bear Valley along the Anchorage Hillside.

The toll

Deaths
0
Injuries
0
Property damage
$100,000
Crop damage
None recorded
Events
3

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 AFC wrote it up.

An intense north Pacific storm produced high wind across south central Alaska along with heavy snow along the Alaska Range and freezing rain in the Kuskokwim Delta. Gusts reached 100 mph in Bear Valley along the Anchorage Hillside. One persons house had a portion of the roof blow off. A drift boat, still attached to its trailer, was blown over 60 feet. Many houses in the Anchorage to Eagle River area had shingles and roofing blown off their roofs. Damage estimates are around $100,000, though getting an accurate estimate is nearly impossible for an event such as this that caused mostly minor damage to many many structures. Snow fall totals were as high as 2.5 feet in the Susitna Valley at Skwentna and 2 feet and Puntilla and Hayes River lodges.

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 Anchorage, AK wrote its last area forecast discussion before the first event at Oct 9, 12:20 PM AKST, 4 hours 46 minutes earlier.

Area forecast discussion, Oct 9, 12:20 PM AKST, 4 hours 46 minutes before
AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
120 PM AKDT THU OCT 9 2008

.ANALYSIS AND UPPER LEVELS...
THIS AFTERNOON...A STRONG 963 MB LOW WITH STORM FORCE WINDS IS
POSITIONED IN THE SOUTHERN BERING SOUTHWEST OF SAINT PAUL. A WARM
FRONT STRETCHES OUT EAST AND AHEAD OF THE LOW FROM THE KILBUCK
MOUNTAINS TO ILIAMNA TO COASTAL SOUTHCENTRAL. SOME SNOW IS OCCURRING
OUT AHEAD OF THE FRONT WITH MUCH WARMER TEMPERATURES BEHIND IT. THE
MORE SIGNIFICANT FEATURE IS A SECONDARY STRENGTHENING FRONT IN THE
WESTERN GULF WITH A TRIPLE POINT LOW DEVELOPING AROUND KAMISHAK BAY
TONIGHT. THIS FRONT WILL BRING THE STRONGEST WINDS TO SOUTHCENTRAL.

.MODEL DISCUSSION...
MODELS ARE IN GOOD AGREEMENT OVERALL THROUGH THE SHORT TERM. SOME
DISAGREEMENTS ARISE IN THE LONG TERM...BUT ALL MODELS AGREE ON
CONTINUING THE VERY ACTIVE PATTERN.

.SHORT TERM FORECAST...
SOUTHCENTRAL...
AN INITIAL WARM FRONT WELL AHEAD OF THE BERING LOW IS BRINGING MORE
OVERRUNNING SNOW THAN ORIGINALLY EXPECTED TO PORTIONS OF
SOUTHCENTRAL. AS THE WARM FRONT MOVES THROUGH THE REST OF
SOUTHCENTRAL EARLY THIS EVENING...TEMPERATURES WILL WARM VERY
QUICKLY ALOFT WITH MOST PLACES CHANGING TO RAIN. THE BIGGER CONCERN
IS THE NEXT FRONT THAT THE MASSIVE BERING LOW WILL THROW AT US
TONIGHT. THE FRONT IS INTENSIFYING THIS AFTERNOON AS IT MOVES NORTH
THROUGH THE WESTERN GULF. GALE TO STORM FORCE WINDS ACCOMPANY THE
FRONT AND WINDS WILL ONLY INTENSIFY TONIGHT AS THE FRONT REACHES THE
NORTH GULF COAST. A TRIPLE POINT LOW MAY ALSO DEVELOP IN KAMISHAK
BAY AND MOVE UP COOK INLET...POSSIBLY FURTHER ENHANCING THE PRESSURE
GRADIENT. A HIGH WIND WARNING IS IN EFFECT FOR TURNAGAIN
ARM...PORTAGE VALLEY...AND THE HIGHER ELEVATIONS OF ANCHORAGE FOR
TONIGHT. RAIN FROM THIS SYSTEM WILL BE HEAVY ESPECIALLY ALONG THE
COAST...AND A SMALL STREAM FLOOD ADVISORY IS IN EFFECT FOR THE ZONES
AROUND PRINCE WILLIAM SOUND. THE FRONT MOVES INLAND FRIDAY MORNING
WITH WINDS SUBSIDING AND PRECIP TAPERING OFF OVER SOME AREAS FRIDAY
AFTERNOON. HOWEVER...THE LOW OUT IN THE BERING WILL WEAKEN AND MOVE
TO NEAR KODIAK SATURDAY...KEEPING SHOWER ACTIVITY AROUND THROUGH THE
WEEKEND OVER MOST OF SOUTHCENTRAL. THE WARMER AIRMASS SHOULD REMAIN
OVER SOUTHCENTRAL UNTIL SUNDAY...WHEN COLDER TEMPERATURES RETURN.

SOUTHWEST MAINLAND...
STRONG FRONT MOVING ONSHORE THE SOUTHWEST MAINLAND. SNOW HAS MOSTLY
CHANGED TO RAIN OVER BRISTOL BAY. THE FRONT WILL PUSH INTO THE
KUSKOKWIM VALLEY TONIGHT WITH A DECENT SHOT OF SNOW AHEAD OF THE
FRONT BEFORE THE FRONT MOVES THROUGH LATE TONIGHT AND TOMORROW
MORNING AND CHANGES THINGS OVER TO A RAIN SNOW MIX. THINGS ARE
TRICKER FOR THE KUSKOKWIM DELTA...AS THE FRONT DOES NOT LOOK LIKE IT
WILL PUSH MUCH FURTHER NORTH AND WEST MEANING THAT THEY MAY NOT
CHANGE OVER TO RAIN AND WILL SEE SOME DECENT SNOWFALL ACCUMULATIONS.
STRONGER NORTHEAST WINDS WILL PERSIST OVER THE KUSKOKWIM DELTA...BUT
BELIEVE THE SNOW WILL BE TOO WET AND TEMPS TOO WARM FOR SNOW TO BLOW
AROUND ENOUGH TO CREATE BLIZZARD CONDITIONS. WILL HAVE TO WATCH THIS
CLOSELY THOUGH THROUGH TOMORROW MORNING. AS THE BERING LOW MOVES
INTO THE WESTERN GULF OF ALASKA...A COLDER AIRMASS WILL MOVE INTO
ALL OF THE SOUTHWEST MAINLAND ON SATURDAY. WILL HAVE TO WATCH FOR
SNOWFALL ACCUMULATIONS IN THE EASTERN HALF OF THE SOUTHWEST MAINLAND
SATURDAY ON THE NORTHWEST SIDE OF THE GULF LOW.

BERING SEA/ALEUTIANS...
A MONSTER 963 MB LOW OUT IN THE ALEUTIANS NEAR BUOY 46073 SOUTHWEST
OF THE PRIBILOFS WILL MOVE SOUTHEAST INTO THE NORTH PACIFIC AND THEN
EAST TOWARD KODIAK...WEAKENING ALL ALONG. THE STRONGEST WINDS WITH
THE LOW AS WELL AS MOST OF THE PRECIP WILL CONTINUE TO BE ON ITS
WEST SIDE. AS THE LOW MOVES INTO THE WESTERN GULF...LOOK FOR STRONG
COLD ADVECTION AND SHOWERS IN THE EASTERN BERING/ALEUTIANS FRIDAY
AFTERNOON THROUGH SATURDAY. A STRONG FRONT MOVES INTO THE WESTERN
ALEUTIANS SATURDAY NIGHT...KEEPING THE ACTIVE PATTERN ALIVE.

.LONG TERM FORECAST...
MODELS DISAGREE ON DETAILS...BUT GENERALLY SPEAKING IT LOOKS LIKE AN
ACTIVE PROGRESSIVE FALL WEATHER PATTERN WILL CONTINUE THROUGH NEXT
WEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING 101 125.
MARINE...STORM WARNING 120 125 172 175 185.
         GALE WARNING 125 129 130 132 155 160 165 170 171 176 179
         180.
FIRE WEATHER...NONE.

FOISY OCT 08

Event by event

2 high wind, 1 heavy snow. Local standard time, as filed.

High Wind, Anchorage Muni to Bird Creek

When
October 9, 5:06 PM AKST to October 10, 6:30 AM AKST
Where
Anchorage Muni to Bird Creek forecast zone
Measured
87 kt (100 mph) measured gust
Property damage
$100,000
Reported by
Trained Spotter

Carl Portman reported 55G100 mph the morning of October 10th.

Heavy Snow, Susitna Valley

When
October 9, 8:00 PM AKST to October 10, 11:00 AM AKST
Where
Susitna Valley forecast zone
Reported by
Official NWS Observations

Calls from a-paid observers at Skwentna, Puntilla, and Hayes reported 2 to 2.5 feet of snow fell overnight.

High Wind, Wrn P.W. Snd & Kenai Mtns

When
October 10, 2:00 AM AKST to 6:30 AM AKST
Where
Wrn P.W. Snd & Kenai Mtns forecast zone
Measured
67 kt (77 mph) measured gust
Reported by
AWOS

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.
Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

More

Every storm in Alaska in 2008Every state in 2008This day in weather historyWarnings in Alaska, October 2008

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 2026-10-01. Each event’s entry at NCEI: 130722, 130720, 130723.