Alert archive / Idaho / Red Flag Warnings in 2025

Red Flag Warning 18, NWS Pocatello, ID

August 15, 202518 counties in Idaho

NWS Pocatello, ID issued this red flag warning at Aug 15, 2025, 8:56 PM MDT for 18 counties in Idaho. It took effect at Aug 16, 2025, 12:00 PM MDT. It was in force for 9 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: Aug 15, 2025, 8:56 PM MDT (02:56 UTC)
In effect from: Aug 16, 2025, 12:00 PM MDT
Expired: Aug 16, 2025, 9:00 PM MDT
In force: 9 hr
Issued by: NWS Pocatello, ID

Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Clark County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Idaho County, ID, Jefferson County, ID, Lemhi County, ID, Madison County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Valley County, ID

The radar

The Pocatello radar (KSFX), 55 km from the middle of the area, began a volume at 02:58 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 red flag 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 red flag warning went out at Aug 15, 5:46 PM MDT, 3 hours 10 minutes earlier.

Area forecast discussion, Aug 15, 5:46 PM MDT, 3 hours 10 minutes before

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In the hours before

Special weather statement, Aug 15, 3:31 PM MDT, 5 hours 25 minutes before

Special Weather Statement
National Weather Service Pocatello ID
331 PM MDT Fri Aug 15 2025

IDZ054-055-057>059-152215-
Eastern Magic Valley ID-Franklin/Eastern Oneida Region ID-
Marsh and Arbon Highlands ID-Raft River Region ID-
Lower Snake River Plain ID-
331 PM MDT Fri Aug 15 2025

...A LINE OF THUNDERSTORMS AND OUTFLOW WINDS WILL IMPACT WESTERN
ONEIDA...CENTRAL BANNOCK...SOUTHEASTERN POWER AND SOUTHEASTERN
CASSIA COUNTIES THROUGH 415 PM MDT...

At 329 PM MDT, Doppler radar was tracking a line of thunderstorms
near Fort Hall Bannock Peak, or 11 miles southeast of Neeley, moving
northeast at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Eastern Pocatello, Rockland, Fort Hall Bannock Peak, Juniper,
Pauline, Arbon, Sublett Reservoir, Mink Creek Pass, Roy, and Sweetzer
Summit.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4241 11336 4285 11247 4274 11225 4200 11283
      4200 11332
TIME...MOT...LOC 2129Z 226DEG 35KT 4260 11279

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Cropp

Special weather statement, Aug 15, 5:13 PM MDT, 3 hours 43 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 2:34 PM MDT	Special Weather Statement	PIH	Bingham	26 min
Aug 16, 3:04 PM MDT	Special Weather Statement	PIH	Bannock	26 min
Aug 16, 4:05 PM MDT	Special Weather Statement	PIH	Caribou	40 min

Nearby

Red Flag Warnings in Idaho, 2025 Every red flag warning 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.