Winter Storm, Big and Little Wood River Region
- When
- February 21, 5:00 AM MST to February 22, 7:00 AM MST
- Where
- Big and Little Wood River Region forecast zone
- Reported by
- TRAINED SPOTTER
Winter Storm in Idaho, February 21 to 22, 1999
A winter storm brought heavy snow from the Sawtooth mountains and Sun Valley to the Teton Basin. Accumulation of 8 to 10 inches were reported at Ketchum, Arco and Ashton.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
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 PIH wrote it up.
A winter storm brought heavy snow from the Sawtooth mountains and Sun Valley to the Teton Basin. Accumulation of 8 to 10 inches were reported at Ketchum, Arco and Ashton. Many state highways in this region were closed due to blowing and drifting snow.
Event by event
4 winter storm. Local standard time, as filed.
Winter Storm, Lost River / Pahsimeroi
- When
- February 21, 5:00 AM MST to February 22, 7:00 AM MST
- Where
- Lost River / Pahsimeroi forecast zone
- Reported by
- TRAINED SPOTTER
Winter Storm, Sawtooth Mountains
- When
- February 21, 5:00 AM MST to February 22, 7:00 AM MST
- Where
- Sawtooth Mountains forecast zone
- Reported by
- TRAINED SPOTTER
Winter Storm, Upper Snake Highlands
- When
- February 21, 5:00 AM MST to February 22, 7:00 AM MST
- Where
- Upper Snake Highlands forecast zone
- Reported by
- TRAINED SPOTTER
What these are
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Cold in Maine, February 21 to 23, 1999
- Winter Storm in Nebraska, February 21 to 23, 1999
- Heavy Snow in Idaho, February 21, 1999
- Winter Storm in Colorado, February 21 to 22, 1999
- Heavy Snow in Nevada, February 21, 1999
- Winter Storm in Colorado, February 21 to 22, 1999
- Winter Storm and Heavy Snow in Oregon, February 21 to 22, 1999
- Heavy Snow in California, February 21, 1999
- Heavy Snow in Hawaii, February 21 to 22, 1999
- Heavy Snow in Wyoming, February 21 to 22, 1999
- Heavy Snow in Colorado, February 21 to 22, 1999
More
Every storm in Idaho in 1999Every state in 1999This day in weather historyWarnings in Idaho, February 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: 5689294, 5689295, 5689296, 5689297.