Heavy Snow, Salmon/Sawtooth Mountains
- When
- February 21, 12:00 AM MST to 7:00 PM MST
- Where
- Salmon/Sawtooth Mountains forecast zone
Heavy Snow in Idaho, February 21, 1998
A winter storm struck the central mountains and eastern highlands on the 21st. In the Salmon/Sawtooth Mountains Ketchum reported 11 inches.
Where it happened
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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 BOI wrote it up.
A winter storm struck the central mountains and eastern highlands on the 21st. In the Salmon/Sawtooth Mountains Ketchum reported 11 inches. In the West Central Mountains Donnelly and McCall reported 12 inches of snow. Remote weather stations in the Boise Mountains reported up to 8 inches of snow. In the Upper Snake Highlands Island Park reported 9 inches, with blowing snow reducing visibilities and forcing the closure of Interstate 15 for two hours.
The radar
The national radar mosaic for the moment the first event began.
Event by event
4 heavy snow. Local standard time, as filed.
Heavy Snow, West Central Mountains
- When
- February 21, 12:00 AM MST to 7:00 PM MST
- Where
- West Central Mountains forecast zone
- Coordinates
- 44.543, -116.300 (the zone’s center; the record gives no point)
Heavy Snow, Boise Mountains/Camas Prairie
- When
- February 21, 12:00 AM MST to 7:00 PM MST
- Where
- Boise Mountains/Camas Prairie forecast zone
- Coordinates
- 43.602, -115.335 (the zone’s center; the record gives no point)
Heavy Snow, Upper Snake Highlands
- When
- February 21, 12:00 PM MST to 10:00 PM MST
- Where
- Upper Snake Highlands forecast zone
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
- Winter Storm in Utah, February 21 to 27, 1998
- Cold in South Carolina, February 21, 1998
- Hail and Damaging Winds in Texas, February 21, 1998
- Flash Flooding in Texas, February 21, 1998
- Flash Flooding and Hail in Texas, February 21, 1998
- Hail and Damaging Winds in Texas, February 21, 1998
- Flooding in California, February 21, 1998
- Heavy Snow in California, February 21 to 22, 1998
- Winter Storm in California, February 21, 1998
- Heavy Snow in California, February 21, 1998
- Flood in Michigan, February 21, 1998
- Heavy Snow in California, February 21, 1998
More
Every storm in Idaho in 1998Every state in 1998This day in weather historyWarnings in Idaho, February 1998
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: 5635693, 5635694, 5635695, 5635696.