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Douglas Ranger District/Thunder Basin National Grassland Fire Danger & Restrictions
Stage 1Safety brief
Updated
Very high fire danger today.
A Red Flag Warning is in effect for the Douglas Ranger District and Thunder Basin National Grassland, with the Moonshine fire growing at 500 acres and 0% contained. Fire danger is very high, and backcountry campfires are prohibited. Campfires are allowed in developed campgrounds with permanent fire pits, but always confirm current restrictions before your trip.
Restrictions
Campfires and Stoves
Equipment and Work
Shooting and Closures
Backcountry campfiresProhibited
Campfires prohibited in backcountry and dispersed areas.
Exceptions
- Persons with FS-7700-48 permit exempting them from this order
- Federal, State, or Local Officers and organized rescue/firefighting services in official duty
Campground campfiresAllowed
Campfires allowed in developed campgrounds and picnic areas with permanent fire pits.
Conditions
- Must use permanent metal or concrete fire pit or grate installed and maintained by USFS at developed recreation sites
Propane fuel and camp stovesRestricted
Propane and gas stoves allowed with safety requirements.
Conditions
- Device must be solely fueled by liquid or gas and can be turned on and off
- Must be used in area barren or cleared of all flammable materials within 3 feet of device
- Fully enclosed metal stove with chimney at least 5 feet long and mesh screen spark arrestor (¼ inch or less opening) must be used in area barren or cleared of all flammable materials within 10 feet
Welding and grindingRestricted
Welding and torch work allowed with safety requirements.
Conditions
- Must be in cleared area of at least 10 feet in diameter
- Chemical pressurized fire extinguisher with minimum 8 oz. capacity and Class 2A rating must be kept with operator
ExplosivesProhibited
Explosives prohibited.
Exceptions
- Persons with FS-7700-48 permit exempting them from this order
- Federal, State, or Local Officers and organized rescue/firefighting services in official duty
Restrictions last checked
Near-surface wildfire smoke forecast
Estimated AQI*
26max avg 4.7 µg/m³ around 12 AM
Good wildfire smoke
Forecast updated Sep 9, 2026, 6:59 PM
* Estimated AQI is an equivalent interpretation of forecast wildfire-smoke PM2.5 only; it is not an observed or official AQI reading.
| Local time | District average | p10 | p90 | Estimated AQI* | Smoke category |
|---|---|---|---|---|---|
| Sep 9, 7:00 PM | 1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈6 | Good wildfire smoke |
| Sep 9, 8:00 PM | 1.7 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈9 | Good wildfire smoke |
| Sep 9, 9:00 PM | 2.5 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈14 | Good wildfire smoke |
| Sep 9, 10:00 PM | 3.1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈17 | Good wildfire smoke |
| Sep 9, 11:00 PM | 3.7 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈21 | Good wildfire smoke |
| Sep 10, 12:00 AM | 4.7 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈26 | Good wildfire smoke |
| Sep 10, 1:00 AM | 3.4 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈19 | Good wildfire smoke |
| Sep 10, 2:00 AM | 0.8 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈4 | Good wildfire smoke |
| Sep 10, 3:00 AM | 0.8 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈4 | Good wildfire smoke |
| Sep 10, 4:00 AM | 0.8 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈4 | Good wildfire smoke |
| Sep 10, 5:00 AM | 1.1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈6 | Good wildfire smoke |
| Sep 10, 6:00 AM | 0.8 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈4 | Good wildfire smoke |
| Sep 10, 7:00 AM | 0.8 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈4 | Good wildfire smoke |
| Sep 10, 8:00 AM | 1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈6 | Good wildfire smoke |
| Sep 10, 9:00 AM | 1.7 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈9 | Good wildfire smoke |
| Sep 10, 10:00 AM | 1.6 µg/m³ | 0 µg/m³ | 2 µg/m³ | Estimated AQI* ≈9 | Good wildfire smoke |
| Sep 10, 11:00 AM | 0.5 µg/m³ | 0 µg/m³ | 0.2 µg/m³ | Estimated AQI* ≈3 | Good wildfire smoke |
| Sep 10, 12:00 PM | 0.3 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 1:00 PM | 0.3 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 2:00 PM | 0.2 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 3:00 PM | 0.1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 4:00 PM | 0.1 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 5:00 PM | 0.2 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 6:00 PM | 0.3 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
* Estimated AQI is an equivalent interpretation of forecast wildfire-smoke PM2.5 only; it is not an observed or official AQI reading. HRRR forecasts near-ground smoke; district values are area-weighted, conditions vary by location, and other pollution sources are not included.
Check current observed air quality on AirNow (opens in a new tab)Alerts
Recent changes
30-day fire danger history
Last 30 days
Changed from High to Very High on Aug 27.
Ratings and restrictions are collected from official source pages and may lag agency updates. Always confirm current fire restrictions, closures, evacuation notices, and emergency guidance with the responsible agency before starting a trip.
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