Alert archive / Idaho / Flash Flood Warnings in 2026

Flash Flood Warning 12, NWS Pocatello, ID

September 18, 2026Blaine County, Idaho

NWS Pocatello, ID issued this flash flood warning at Sep 18, 2026, 9:08 AM MDT for Blaine County, Idaho. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 18, 2026, 9:08 AM MDT (15:08 UTC)
Expired
Sep 18, 2026, 2:15 PM MDT
In force
5 hr
Issued by
NWS Pocatello, ID
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Blaine County, ID

The radar

The Pocatello radar (KSFX), 110 km from the middle of the area, began a volume at 15:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this flash flood warning went out at Sep 17, 12:52 PM MDT, 20 hours 16 minutes earlier.

Area forecast discussion, Sep 17, 12:52 PM MDT, 20 hours 16 minutes before
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The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 17, 6:14 PM MDTSpecial Weather StatementPIHBingham31 min
Sep 17, 7:32 PM MDTSevere Thunderstorm WarningPIHBear Lake29 min
Sep 17, 7:52 PM MDTSpecial Weather StatementPIHJefferson53 min
Sep 17, 8:25 PM MDTSpecial Weather StatementPIHBingham50 min
Sep 17, 9:08 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville52 min
Sep 17, 9:32 PM MDTSevere Thunderstorm WarningPIHBingham43 min
Sep 17, 9:51 PM MDTFlash Flood WarningPIHMadison5 hr
Sep 17, 10:00 PM MDTFlash Flood WarningPIHBonneville, Jefferson4 hr
Sep 17, 10:05 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Oneida, Power29 min
Sep 17, 10:11 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville, Jefferson36 min
Sep 17, 10:25 PM MDTFlash Flood Warning Considerable damage threatPIHJefferson, Madison4 hr
Sep 17, 10:37 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Caribou, Power38 min
Sep 17, 11:24 PM MDTSpecial Weather StatementPIHBonneville, Teton66 min
Sep 17, 11:26 PM MDTSpecial Weather StatementPIHBonneville49 min
Sep 18, 12:17 AM MDTSpecial Weather StatementPIHBonneville, Madison, Teton43 min
Sep 18, 12:21 AM MDTSpecial Weather StatementPIHBingham39 min
Sep 18, 2:52 AM MDTFlash Flood WatchPIHBonneville, Fremont, Jefferson, Madison8 hr
Sep 18, 8:28 AM MDTSpecial Weather StatementPIHBannock, Bear Lake, Caribou32 min
Sep 18, 10:30 AM MDTFlood WatchPIHBannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 10 more8 hr
Sep 18, 10:44 AM MDTFlash Flood Warning Considerable damage threatPIHJefferson, Madison89 min
Sep 18, 1:37 PM MDTFlash Flood WarningPIHBlaine, Butte, Custer3 hr

Nearby

Flash Flood Warnings in Idaho, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.