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Liberty County weather alerts

4 active alerts for Liberty County, Montana right now: 2 Flash Flood Warnings, a Severe Thunderstorm Watch, and a Flood Watch.

8 in the last 30 days 8 in 12 months (since Aug 30) most common: Flash Flood Warning Get alerts on your phone →

Active alerts for Liberty County

Refreshed every few minutes; times in MDT.

Severe Immediate

Flash Flood Warning

Issued Sun, Sep 6, 9:51 PM MDT by NWS Great Falls MT Until Mon, Sep 7, 12:45 AM MDT (in 2 hr)

Area: Hill, MT; Liberty, MT

FFWTFX The National Weather Service in Great Falls has issued a * Flash Flood Warning for... Southwestern Hill County in north central Montana... Southeastern Liberty County in north central Montana... * Until 1245 AM MDT. * At 951 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain hav...

What it means: Flash flooding is occurring or imminent. Move to higher ground; never drive into water covering a road.

Full alert with map and forecast →
Severe Future

Severe Thunderstorm Watch

Issued Sun, Sep 6, 10:08 PM MDT by NWS Great Falls MT Until Mon, Sep 7, 1:00 AM MDT (in 3 hr)

Area: Blaine, MT; Chouteau, MT; Fergus, MT; Hill, MT; Liberty, MT

SEVERE THUNDERSTORM WATCH 662 REMAINS VALID UNTIL 1 AM MDT MONDAY FOR THE FOLLOWING AREAS IN MONTANA THIS WATCH INCLUDES 5 COUNTIES IN CENTRAL MONTANA FERGUS IN NORTH CENTRAL MONTANA BLAINE CHOUTEAU HILL LIBERTY THIS INCLUDES THE CITIES OF BIG SANDY, CARTER, CHESTER, CHINOOK, FORT BENTON, GRASS RANGE, HARLEM, HAVRE, HAYS, LEWISTOWN, LEWISTOWN DIVIDE, ROCK...

What it means: Conditions are favourable for severe thunderstorms with large hail or damaging wind. Keep an eye on the sky and on warnings.

Full alert with map and forecast →
Severe Immediate

Flash Flood Warning

Issued Sun, Sep 6, 10:04 PM MDT by NWS Great Falls MT Until Mon, Sep 7, 1:00 AM MDT (in 3 hr)

Area: Hill, MT; Liberty, MT

FFWTFX The National Weather Service in Great Falls has issued a * Flash Flood Warning for... Northwestern Hill County in north central Montana... Northeastern Liberty County in north central Montana... * Until 100 AM MDT. * At 1004 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 2 inches of rain have fallen...

What it means: Flash flooding is occurring or imminent. Move to higher ground; never drive into water covering a road.

Full alert with map and forecast →
Severe Future

Flood Watch

Issued Sun, Sep 6, 11:32 AM MDT by NWS Great Falls MT Until Tue, Sep 8, 12:00 PM MDT (in 2 day)

Area: East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of north central Montana, including the following areas, East Glacier Park Region, Eastern Glacier, Western Toole, and Central Pondera, Eastern Pondera and Eastern Teton, Eastern Toole and Liberty, Northern High Plains, Southern High Plains and Southern Rocky Mountain Front. *...

What it means: Conditions are favourable for flooding. Have a plan in case a warning is issued.

Full alert with map and forecast →

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Where

Liberty 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 Liberty County

AlertIssuedEndedIssued by
Special Weather Statement 9:03 PM 9:45 PM Great Falls MT
Severe Thunderstorm Watch 5:53 PM Sep 7, 1:00 AM Great Falls MT
Hydrologic Outlook 1:54 AM 12:00 PM Great Falls MT
Hydrologic Outlook Sep 5, 10:40 AM 12:00 PM Great Falls MT

Pattern

What Liberty County gets alerted for

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

Flash Flood Warning
2
Hydrologic Outlook
2
Severe Thunderstorm Watch
2
Flood Watch
1
Special Weather Statement
1

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 Warning

Flash flooding is occurring or imminent. Move to higher ground; never drive into water covering a road.

Severe Thunderstorm Watch

Conditions are favourable for severe thunderstorms with large hail or damaging wind. Keep an eye on the sky and on warnings.

Flood Watch

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

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.

Hydrologic Outlook

Flooding may develop over the coming days as rain, snowmelt or river levels rise.

Nearby

Alerts near Liberty County

Neighbouring counties in Montana

Toole County1 Chouteau County2 Hill County3 Pondera County1 Teton County1 All of Montana →

Questions

About Liberty County alerts

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

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

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