Severe Thunderstorm Warning for Geyser and Raynesford, MT
If you are in immediate danger, call emergency services now.
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A Severe Thunderstorm Warning is in effect for northwestern Judith Basin County and south central Chouteau County until 10:15 PM MDT.
The weather record, at a glance
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central Montana
- Issued
- September 14, 2026
- Issuing authority
- NWS Great Falls MT
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
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
Severe Thunderstorm Warning issued by NWS Great Falls MT. Effective from September 13, 2026 at 9:28 PM MDT until September 13, 2026 at 10:15 PM MDT.
Affected Areas
Northwestern Judith Basin County in central Montana and south central Chouteau County in north central Montana. Locations impacted include Geyser and Raynesford.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 9:28 PM MDT, a severe thunderstorm was located 12 miles southwest of Geyser, or 24 miles west of Stanford, moving northeast at 35 mph. Hazard includes quarter size hail. Max hail size 1.00 inch. Max wind gust up to 50 MPH. Damage to vehicles is expected.
Timeline
Alert effective September 13, 2026 at 9:28 PM MDT and expires September 13, 2026 at 10:15 PM MDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Beyond this NWS weather alert's own category, Areazine surfaces two nationwide peer sets: length-matched and severity/date-matched notices from elsewhere in the archive, distinct from the same-feed Related list above.
Similar body length
Nearest notices by article body length (842 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 14, 2026.
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