Idaho, 1999

Winter Storm in Idaho, December 12 to 13, 1999

December 12 to 13, 1999 · NWS PIH · 3 events in 3 counties and zones

A winter storm brought heavy snow to the mountains of Central and Eastern Idaho. Accumulation of 6 to 12 inches were reported from the Sawtooth and Boulder Mountains across the Upper Snake Highlands to the Teton Basin.

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 PIH wrote it up.

A winter storm brought heavy snow to the mountains of Central and Eastern Idaho. Accumulation of 6 to 12 inches were reported from the Sawtooth and Boulder Mountains across the Upper Snake Highlands to the Teton Basin.

Event by event

3 winter storm. Local standard time, as filed.

Winter Storm, Big and Little Wood River Region

When
December 12, 8:00 PM MST to December 13, 1:00 PM MST
Where
Big and Little Wood River Region forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Sawtooth Mountains

When
December 12, 8:00 PM MST to December 13, 1:00 PM MST
Where
Sawtooth Mountains forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Upper Snake Highlands

When
December 12, 8:00 PM MST to December 13, 1:00 PM 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

More

Every storm in Idaho in 1999Every state in 1999This day in weather historyWarnings in Idaho, 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 2026-10-01. Each event’s entry at NCEI: 5720009, 5720010, 5720011.