High Wind, Tanana Valley
- When
- August 20, 7:00 AM AST to 9:00 AM AST
- Where
- Tanana Valley forecast zone
- Measured
- 46 kt (53 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
High Wind in Alaska, August 20, 1999
Zone 5: Helmut Mountain (40 miles SE of Arctic Village) : 50 mph.
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.
A strong weather front swept across Northern Alaska producing locally high winds for a brief period of time.Peak gusts were reported at:Zone 8: Poorman 51 mphZone 7: Healy : 50 mph.Zone 5: Helmut Mountain (40 miles SE of Arctic Village) : 50 mph.
Event by event
3 high wind. Local standard time, as filed.
High Wind, Lower Yukon Valley
- When
- August 20, 12:00 PM AST to 2:00 PM AST
- Where
- Lower Yukon Valley forecast zone
- Measured
- 46 kt (53 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
High Wind, Koyukuk-Upper Kobuk Valleys
- When
- August 20, 5:00 PM AST to 7:00 PM AST
- Where
- Koyukuk-Upper Kobuk Valleys forecast zone
- Measured
- 45 kt (52 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
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
- Tornado and Waterspouts in New Jersey, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Hail and Damaging Winds in South Carolina, August 20, 1999
- Hail and Damaging Winds in Georgia, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Hail and Damaging Winds in North Carolina, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Damaging Wind in Louisiana, August 20, 1999
- Hail and Damaging Winds in Kansas, August 20, 1999
- Flash Flooding in New York, August 20, 1999
- Damaging Wind in Louisiana, August 20, 1999
More
Every storm in Alaska in 1999Every state in 1999This day in weather historyWarnings in Alaska, August 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: 5710024, 5710023, 5710025.