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NWS Boise IDSV.W 0017May 28, 2026

Severe Thunderstorm Warning: Ada, Canyon, Elmore and 1 more, ID

The National Weather Service office in Boise issued a severe thunderstorm warning for Ada, Canyon, Elmore and 1 more in Idaho, which was in force until 4:00 p.m. local time on May 28. It was the 17th severe thunderstorm warning the NWS office in Boise issued in 2026. Idaho had 44 severe thunderstorm warnings in May 2026, against 12 in an average May of 2008-2025 (Idaho's severe thunderstorm warnings by year).

ExpiredWarning

Issued3:17 p.m. MDT, May 28, 2026
In force3:17 p.m. MDT, May 28, 2026
Expired4:00 p.m. MDT, May 28, 2026

In force for 43 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Boise ID
Area
Ada, Canyon, Elmore and 1 more
State
Idaho
Level
Warning
Issued
3:17 p.m. MDT, May 28, 2026
Expires
4:00 p.m. MDT, May 28, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KBOI SV.W 0017
Official source
National Weather Service: the notice at its source

Severe Thunderstorm Warnings in Idaho since 2008Every warning type in Idaho

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SVRBOI The National Weather Service in Boise has issued a * Severe Thunderstorm Warning for... Ada County in southwestern Idaho... Southwestern Elmore County in southwestern Idaho... Southeastern Canyon County in southwestern Idaho... Central Owyhee County in southwestern Idaho... * Until 400 PM MDT. * At 317 PM MDT, gusty outflow winds were located ahead of a line of thunderstorms extending from 6 miles southwest of Swan Falls to 7 miles southeast of Big Foot Butte to near Mountain Home Air Force Base to near Hammett, moving north at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Mountain Home, Swan Falls, Big Foot Butte, and Cinder Cone Butte around 320 PM MDT. Tollgate and Initial Point around 330 PM MDT. Kuna, Blacks Creek Reservoir, and Boise Stage Stop around 340 PM MDT. Southeastern Boise, Anderson Dam, Danskin Peak, and Lucky Peak Dam around 350 PM MDT.

What the agency told people to do

For your protection move to an interior room on the lowest floor of a building. Strong wind gusts can produce sudden drops in visibility due to blowing dust. When safe to do so, please relay storm reports to the National Weather Service in Boise via local law enforcement, or National Weather Service Boise Facebook and Twitter accounts.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice