Red Flag Warning Issued for Southeast Montana and Northwest South Dakota
This alert is no longer in effect.
NOAA issued it on August 5, 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 Billings MT has issued a Red Flag Warning in effect from 11 AM to 8 PM MDT Thursday for critical fire weather conditions.
Read this weather record in 30 seconds
- Record type
- Red Flag Warning
- Affected area
- Southeast Montana and Northwest South Dakota
- Issued
- August 5, 2026
- Issuing authority
- NWS Billings MT
Fire-weather notices describe conditions that can support rapid fire spread; they do not report that a fire is present. Check local emergency sources for any active incident.
Record status: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Southeast Montana and Northwest South Dakota.
Alert Details
A Red Flag Warning has been issued by the National Weather Service in Billings MT. The alert is effective from 11:08 AM MDT on August 5, 2026, with onset at 11 AM MDT on August 6, 2026, and expires at 8 PM MDT on August 6, 2026.
Affected Areas
The warning covers Custer County and the Sioux Ranger District Custer National Forest. Affected fire zones include Southeast MT Fire Zone 132 and Southeast MT and Northwest SD Fire Zone 133. Counties affected are Carter, Custer, and Fallon in Southeast Montana, and Harding in Northwest South Dakota.
What You Should Do
A Red Flag Warning means critical fire weather conditions are either occurring now or will shortly. Residents should prepare for a combination of strong winds, low relative humidity, and warm temperatures that can contribute to extreme fire behavior.
Expected Conditions
Low humidities, hot temperatures, and a wind shift with a cold front will create erratic fire behavior and new fire starts. Winds will be northwest 10 to 20 mph with gusts up to 30 mph. Humidity will be as low as 10 percent. Temperatures will reach up to 95 degrees.
Timeline
The warning is in effect from 11 AM to 8 PM MDT Thursday, August 6, 2026. A weak cold front will pass through Thursday evening, shifting winds to the NNW.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (1,298 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 5, 2026.
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