Flash Flood Warning Issued for Hill and Liberty Counties in Montana
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NWS Great Falls MT has issued a Flash Flood Warning for northwestern Hill County and northeastern Liberty County until 1:00 AM MDT September 7 due to heavy thunderstorms.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- North Central Montana
- Issued
- September 7, 2026
- Issuing authority
- NWS Great Falls MT
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Flash Flood Warning (event code FFW) has been issued by the National Weather Service in Great Falls MT. The alert is effective from September 6 at 10:04 PM MDT until September 7 at 1:00 AM MDT.
Affected Areas
The warning covers northwestern Hill County and northeastern Liberty County in north central Montana. Locations that will experience flash flooding include Inverness and Joplin.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 2 inches of rain have fallen, with an expected rainfall rate of 2 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly.
Timeline
The warning is in effect from September 6 at 10:04 PM MDT through September 7 at 1:00 AM MDT. Thunderstorms are expected to repeatedly move over the same areas.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,042 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 7, 2026.
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