Heavy Snow, Southwest Highlands
- When
- April 20, 1:00 AM MST to 10:00 AM MST
- Where
- Southwest Highlands forecast zone
- Reported by
- TRAINED SPOTTER
- Coordinates
- 42.582, -116.170 (the zone’s center; the record gives no point)
Heavy Snow in Idaho, April 20, 2005
8-12 inches new snow fell behind a cold front.
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
- 2
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.
8-12 inches new snow fell behind a cold front.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 heavy snow. Local standard time, as filed.
Heavy Snow, Southern Twin Falls County
- When
- April 20, 1:00 AM MST to 9:00 AM MST
- Where
- Southern Twin Falls County forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.356, -114.667 (the zone’s center; the record gives no point)
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 and Damaging Winds in Mississippi, April 20 to 22, 2005
- Hail and Damaging Winds in Kansas, April 20, 2005
- Hail in Nebraska, April 20 to 21, 2005
- Hail in Kansas, April 20, 2005
- Hail and Damaging Winds in Ohio, April 20, 2005
- Hail and Damaging Wind in Colorado, April 20 to 21, 2005
- Hail in Nebraska, April 20 to 21, 2005
- Hail and Damaging Wind in Kansas, April 20, 2005
- Hail and Damaging Winds in Oklahoma, April 20, 2005
- Hail in Texas, April 20, 2005
- Hail in Colorado, April 20, 2005
- Marine Thunderstorm Winds in Lake Erie, April 20, 2005
More
Every storm in Idaho in 2005Every state in 2005This day in weather historyWarnings in Idaho, April 2005
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: 5439955, 5439956.