Severe Thunderstorm Warning for Deer Lodge and Granite Counties, MT
This alert is no longer in effect.
NOAA issued it on September 6, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Missoula has issued a Severe Thunderstorm Warning for north central Deer Lodge County and southeastern Granite County in west central Montana until 4:45 PM MDT.
The weather record, at a glance
- Record type
- Severe Thunderstorm Warning
- Affected area
- West Central Montana
- Issued
- September 6, 2026
- Issuing authority
- NWS Missoula 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: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in West Central Montana.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Missoula MT. The alert is effective from September 6, 2026 at 4:18 PM MDT until September 6, 2026 at 4:45 PM MDT.
Affected Areas
The warning covers North Central Deer Lodge County and Southeastern Granite County in west central Montana. Locations impacted include Anaconda, West Valley and Lost Creek.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows.
Expected Conditions
At 4:18 PM MDT, a severe thunderstorm was located 9 miles southwest of West Valley, or 10 miles southwest of Anaconda, moving northeast at 35 mph. Hazards include 60 mph wind gusts and half dollar size hail (1.25 inches). Hail damage to vehicles is expected along with wind damage to roofs, siding, and trees.
Timeline
The warning is in effect until 4:45 PM MDT on September 6, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Comparable nationwide notices (length or severity timing) 8
Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (909 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 6, 2026.
Questions & Answers
Common questions about this NWS weather alert.