Heavy Snow, Lynn Canal-Glacier Bay
- When
- March 31, 2:00 AM AST to 11:00 PM AST
- Where
- Lynn Canal-Glacier Bay forecast zone
- Reported by
- OFFICIAL NWS OBS.
Heavy Snow in Alaska, March 31, 2001
2 inches of snow in less than 24 hours. This was a microscale event as arctic air trapped in the Chilkat Valley was overrun by warmer, maritime air from Lynn Canal.
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 AJK wrote it up.
The Haines Customs Station at Pleasant Camp (elevation 812 feet) received 11.2 inches of snow in less than 24 hours. This was a microscale event as arctic air trapped in the Chilkat Valley was overrun by warmer, maritime air from Lynn Canal. The snowfall was enhanced by upslope flow where the valley converges. Water equivalent of the snow was only 0.67 inches. Interestingly, no precipitation fell in the community of Haines or at the Haines airport, about 32 miles southeast of the border.
Event by event
1 heavy snow. Local standard time, as filed.
What these are
- 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
- Hail in Mississippi, March 31, 2001
- Dense Fog in Kentucky, March 31, 2001
- Dense Fog in Illinois, March 31, 2001
- Hail and Damaging Wind in Florida, March 31, 2001
- Hail and Damaging Wind in Arkansas, March 31, 2001
- Hail and Damaging Wind in Mississippi, March 31, 2001
- Dense Fog in Indiana, March 31, 2001
- Heavy Snow in Montana, March 31, 2001
- Flood in New York, March 31, 2001
- Drought in California, March 31, 2001
- Heavy Snow in New York, March 31, 2001
- Hail in Arkansas, March 31, 2001
More
Every storm in Alaska in 2001Every state in 2001This day in weather historyWarnings in Alaska, March 2001
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: 5233894.