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Fallon County weather alerts

1 active alert for Fallon County, Montana right now: a Red Flag Warning.

3 in the last 30 days 24 in 12 months (since Aug 30) most common: Red Flag Warning Get alerts on your phone →

Active alerts for Fallon County

Refreshed every few minutes; times in MDT.

Severe Expected Starts in 21 hr

Red Flag Warning

Issued Thu, Oct 22, 12:14 PM MDT by NWS Billings MT Until Fri, Oct 23, 9:00 PM MDT (in 1 day)

Area: Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM

The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from noon to 9 PM MDT Friday. * IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and a wind shift with a cold front will create erratic fire behavior and difficult control of new or existing fires. * AFFECTED AREA: In North Central WY Fi...

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

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Where

Fallon 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 Fallon County

Alert	Issued	Ended	Issued by
Special Weather Statement	Oct 3, 3:43 AM	Oct 3, 4:30 AM	Billings MT
Dense Fog Advisory	Sep 24, 12:34 AM	Sep 24, 10:00 AM	Billings MT

Pattern

What Fallon County gets alerted for

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

Red Flag Warning

Flood Watch

High Wind Warning

Special Weather Statement

Dense Fog Advisory

Fire Weather Watch

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.

Red Flag Warning

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

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.

Dense Fog Advisory

Visibility of a quarter mile or less is expected. Slow down and use low beams.

Flood Watch

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

High Wind Warning

Sustained winds of 40 mph or more, or gusts of 58 mph or more, are expected. Secure loose objects and expect downed trees and power lines.

Fire Weather Watch

Critical fire weather conditions are possible. Postpone outdoor burning.

Nearby

Alerts near Fallon County

Neighbouring counties in Montana

Carter County1 Wibaux County Custer County Prairie County All of Montana →

Questions

About Fallon County alerts

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

Install Forecast Bar, add Fallon County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Fallon 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 Fallon 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/mt/fallon-county.json returns the active alerts, the last 30 days and the 12-month counts for Fallon County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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