Weather alerts in Idaho

25,324 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts: 25,324
Warnings: 6,801
Watches: 1,927
Advisories: 6,197
Busiest year: 20231,805 alerts
Average year: 618over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	3,194
Tornado Warning	199
Severe Thunderstorm Watch	124
Tornado Watch	1
Mesoscale Discussion	599
Special Weather Statement	9,798
Flooding
Areal Flood Warning	173
Flash Flood Warning	664
River Flood Warning	262
Flash Flood Watch	192
Flood Watch	182
River Flood Watch	136
Areal Flood Advisory	816
River Flood Advisory	77
Hydrologic Statement	2
Winter
Blizzard Warning	20
Heavy Snow Warning	129
Ice Storm Warning	2
Snow Squall Warning	44
Winter Storm Warning	743
Winter Storm Watch	665
Blowing Snow Advisory	13
Freezing Rain Advisory	37
Snow Advisory	267
Snow and Blowing Snow Advisory	62
Winter Weather Advisory	2,102
Heat
Excessive Heat Warning	40
Extreme Heat Warning	4
Excessive Heat Watch	30
Extreme Heat Watch	3
Heat Advisory	154
Cold
Extreme Cold Warning	6
Freeze Warning	229
Hard Freeze Warning	11
Wind Chill Warning	76
Extreme Cold Watch	3
Freeze Watch	77
Hard Freeze Watch	2
Wind Chill Watch	21
Cold Weather Advisory	6
Frost Advisory	197
Wind Chill Advisory	31
Wind and dust
Blowing Dust Warning	2
Dust Storm Warning	7
High Wind Warning	173
High Wind Watch	102
Blowing Dust Advisory	17
Dust Storm Advisory	20
Lake Wind Advisory	462
Wind Advisory	1,321
Fire
Red Flag Warning	823
Fire Weather Watch	389
Fog and smoke
Air Stagnation Advisory	75
Dense Fog Advisory	472
Dense Smoke Advisory	1
Freezing Fog Advisory	67

By county

Every county with at least one alert. A county page lists each alert that covered it.

4 more counties

The latest warnings

The most recent on file, newest first.

Issued	Product	Office	Counties	Lasted
Sep 18, 5:47 PM MDT	Flash Flood Warning Considerable damage threat	BOI	Boise	118 min
Sep 18, 5:21 PM MDT	Flash Flood Warning Considerable damage threat	BOI	Boise	2 hr
Sep 18, 1:37 PM MDT	Flash Flood Warning	PIH	Blaine, Butte, Custer	3 hr
Sep 18, 11:49 AM MDT	Flash Flood Warning	BOI	Elmore	2 hr
Sep 18, 10:44 AM MDT	Flash Flood Warning Considerable damage threat	PIH	Jefferson, Madison	89 min
Sep 18, 9:08 AM MDT	Flash Flood Warning Considerable damage threat	PIH	Blaine	5 hr
Sep 17, 10:37 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Bingham, Caribou, Power	38 min
Sep 17, 10:25 PM MDT	Flash Flood Warning Considerable damage threat	PIH	Jefferson, Madison	4 hr
Sep 17, 10:11 PM MDT	Severe Thunderstorm Warning	PIH	Bingham, Bonneville, Jefferson	36 min
Sep 17, 10:05 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Bingham, Oneida, Power	29 min
Sep 17, 10:00 PM MDT	Flash Flood Warning	PIH	Bonneville, Jefferson	4 hr
Sep 17, 9:51 PM MDT	Flash Flood Warning	PIH	Madison	5 hr

Nearby

Alerts in force now Tornadoes on record The radar archive

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.