Alert archive / Montana / Mesoscale Discussions in 2025

Mesoscale Discussion 1978

August 17, 2025Clark County, Lemhi County, Idaho; 13 counties in Montana

The Storm Prediction Center issued this mesoscale discussion at Aug 17, 2025, 4:25 PM MDT for Clark County, Lemhi County, Idaho; 13 counties in Montana. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Aug 17, 2025, 4:25 PM MDT (22:25 UTC)
Expired
Aug 17, 2025, 6:30 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch unlikely
Chance of a watch
5%

Counties Clark County, ID, Lemhi County, ID, Beaverhead County, MT, Broadwater County, MT, Gallatin County, MT, Golden Valley County, MT, Jefferson County, MT, Judith Basin County, MT, Madison County, MT, Meagher County, MT, Park County, MT, Silver Bow County, MT, Stillwater County, MT, Sweet Grass County, MT, Wheatland County, MT

The radar

The Pocatello radar (KSFX), 248 km from the middle of the area, began a volume at 22:24 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.

The text

As transmitted.

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Nearby

Mesoscale Discussions in Montana, 2025Mesoscale Discussions in Idaho, 2025Every mesoscale discussion in 2025

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.