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Fremont County weather alerts

1 active alert for Fremont County, Idaho right now: a Flash Flood Watch.

15 in the last 30 days 43 in 12 months (since Aug 30) most common: Special Weather Statement Get alerts on your phone →

Active alerts for Fremont County

Refreshed every few minutes; times in MDT.

Severe Future Starts in 16 hr

Flash Flood Watch

Issued Thu, Oct 22, 1:51 AM MDT by NWS Pocatello ID Until Fri, Oct 23, 6:00 PM MDT (in 2 day)

Area: Upper Snake River Plain; Wood River Foothills

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Big Rock burn scar and Ohio burn scar. * WHERE...Portions of central and southeast Idaho, including the following areas, in central Idaho, Wood River Foothills. In southeast Idaho, Upper Snake River Plain. * WHEN...From this evening through Friday aftern...

What it means: Conditions may lead to flash flooding. Be ready to move to higher ground.

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Where

Fremont County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for Fremont County

Alert	Issued	Ended	Issued by
Flash Flood Watch	Oct 21, 11:47 AM	Oct 23, 6:00 PM	Pocatello ID
Freeze Warning	Oct 14, 8:54 AM	Oct 14, 9:00 AM	Pocatello ID
Freeze Warning	Oct 13, 10:17 AM	Oct 14, 9:00 AM	Pocatello ID
Frost Advisory	Oct 13, 8:39 AM	Oct 13, 9:00 AM	Pocatello ID
Frost Advisory	Oct 12, 10:48 AM	Oct 13, 9:00 AM	Pocatello ID
Special Weather Statement	Oct 11, 7:38 PM	Oct 11, 10:30 PM	Pocatello ID
Frost Advisory	Oct 11, 7:29 PM	Oct 12, 9:00 AM	Pocatello ID
Flood Watch	Oct 11, 7:26 PM	Oct 12, 6:00 PM	Pocatello ID
Special Weather Statement	Oct 11, 7:17 PM	Oct 11, 10:30 PM	Pocatello ID
Frost Advisory	Oct 11, 11:16 AM	Oct 12, 9:00 AM	Pocatello ID
Flood Watch	Oct 11, 5:35 AM	Oct 12, 6:00 PM	Pocatello ID
Flood Watch	Oct 10, 1:27 PM	Oct 12, 6:00 PM	Pocatello ID
Flood Watch	Oct 10, 12:53 AM	Oct 12, 6:00 PM	Pocatello ID
Flood Watch	Oct 9, 1:15 PM	Oct 12, 6:00 PM	Pocatello ID

Pattern

What Fremont County gets alerted for

Every alert that named Fremont County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Special Weather Statement

Flood Watch

Frost Advisory

Red Flag Warning

Flash Flood Watch

Severe Thunderstorm Warning

Freeze Warning

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Flash Flood Watch

Conditions may lead to flash flooding. Be ready to move to higher ground.

Freeze Warning

Sub-freezing temperatures are imminent. Protect tender plants and outdoor plumbing.

Frost Advisory

Frost is expected on the ground. Cover sensitive plants overnight.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Flood Watch

Conditions are favourable for flooding. Have a plan in case a warning is issued.

Red Flag Warning

Critical fire weather: dry fuels, low humidity and gusty winds. Any fire can spread rapidly; avoid outdoor burning.

Severe Thunderstorm Warning

A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Nearby

Alerts near Fremont County

Neighbouring counties in Idaho

Madison County1 Teton County Clark County Jefferson County1 All of Idaho →

Questions

About Fremont County alerts

How do I get Fremont County weather alerts on my iPhone?

Install Forecast Bar, add Fremont County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Fremont County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Fremont County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/id/fremont-county.json returns the active alerts, the last 30 days and the 12-month counts for Fremont County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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