Cold/Wind Chill, North Slopes of Brooks Range
- When
- December 24, 10:00 PM AST to December 25, 2:35 AM AST
- Where
- North Slopes of Brooks Range forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
Cold in Alaska, December 24 to 25, 1999
Building high pressure over interior Alaska with a cold airmass over the Brooks Range and North Slope created a period of extreme windchills on the north and south slopes of the Brooks Range, inferred from observations at Anaktuvuk Pass, where the lowest windchill value was -80.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- 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 AFG wrote it up.
Building high pressure over interior Alaska with a cold airmass over the Brooks Range and North Slope created a period of extreme windchills on the north and south slopes of the Brooks Range, inferred from observations at Anaktuvuk Pass, where the lowest windchill value was -80.
Event by event
3 cold/wind chill. Local standard time, as filed.
Cold/Wind Chill, Koyukuk-Upper Kobuk Valleys
- When
- December 24, 10:00 PM AST to December 25, 2:35 AM AST
- Where
- Koyukuk-Upper Kobuk Valleys forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
Cold/Wind Chill, Upper Yukon Valley
- When
- December 24, 10:00 PM AST to December 25, 2:35 AM AST
- Where
- Upper Yukon Valley forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
What these are
- Cold/Wind Chill
- Cold or wind chill below warning criteria that caused deaths, injuries or damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Winter Weather in North Carolina, December 24, 1999
- Heavy Snow in Kentucky, December 24, 1999
- High Surf in Hawaii, December 24 to 26, 1999
- Heavy Snow in Kentucky, December 24, 1999
- Heavy Snow in North Carolina, December 24, 1999
- Winter Weather in Virginia, December 24, 1999
- Heavy Snow and High Wind in New Mexico, December 24 to 25, 1999
- Heavy Snow and High Wind in Texas, December 24 to 25, 1999
- Heavy Snow in New Mexico, December 24 to 25, 1999
- Heavy Snow in Pennsylvania, December 24, 1999
More
Every storm in Alaska in 1999Every state in 1999This day in weather historyWarnings in Alaska, December 1999
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: 5721032, 5721033, 5721123.