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Lower Trinity Ranger District Fire Danger & Restrictions
Stage 1Safety brief
Updated
Moderate fire danger today.
The MP18 fire is 7,599 acres and 98% contained, with a trend toward more containment. Fire danger is moderate in the Lower Trinity Ranger District. Backcountry campfires are prohibited unless in designated fire safe sites or Wilderness areas with a permit. Campfires are allowed in developed recreation sites, and portable propane devices are permitted with a campfire permit. Always check current conditions and specific site regulations before your trip.
Restrictions
Campfires and Stoves
Equipment and Work
Shooting and Closures
Backcountry campfiresRestricted
Backcountry campfires prohibited except in Wilderness areas with valid California Campfire Permit or Designated Fire Safe Sites.
Conditions
- Allowed in Wilderness areas (Siskiyou, Marble Mountains, Yolla Bolly-Middle Eel, Mount Lassic, Trinity Alps, North Fork) with valid California Campfire Permit
- Allowed in Designated Fire Safe Sites
Exceptions
- Valid California Campfire Permit holders in listed Wilderness areas
- Forest Service Permit FS-7700-48 holders
- Federal, State, or local officers and organized rescue/fire-fighting forces in official duty
Campground campfiresAllowed
Campfires allowed in developed recreation sites within stoves, charcoal grills, or fire rings provided.
Conditions
- Only within stoves, charcoal grills, or fire rings provided in Developed Recreation Sites
Propane fuel and camp stovesRestricted
Portable propane campfire pits, stoves, and lanterns allowed with valid California Campfire Permit and safety requirements.
Conditions
- Must have shut-off valve
- Must be at least three feet from any flammable materials
- Requires valid California Campfire Permit
Exceptions
- Valid California Campfire Permit holders only
Welding and grindingProhibited
Welding and acetylene or other torches with open flame prohibited.
Exceptions
- Forest Service Permit FS-7700-48 holders
- Federal, State, or local officers and organized rescue/fire-fighting forces in official duty
ExplosivesProhibited
Fireworks and explosives always prohibited.
Restrictions last checked
Near-surface wildfire smoke forecast
Estimated AQI*
3max avg 0.6 µg/m³ around 7 PM
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 | 0.6 µg/m³ | 0.2 µg/m³ | 1 µg/m³ | Estimated AQI* ≈3 | Good wildfire smoke |
| Sep 9, 8:00 PM | 0.5 µg/m³ | 0.1 µg/m³ | 0.8 µg/m³ | Estimated AQI* ≈3 | Good wildfire smoke |
| Sep 9, 9:00 PM | 0.3 µg/m³ | 0.1 µg/m³ | 0.6 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 9, 10:00 PM | 0.3 µg/m³ | 0.1 µg/m³ | 0.5 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 9, 11:00 PM | 0.3 µg/m³ | 0.1 µg/m³ | 0.5 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 12:00 AM | 0.3 µg/m³ | 0.1 µg/m³ | 0.6 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 1:00 AM | 0.3 µg/m³ | 0.1 µg/m³ | 0.5 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 2:00 AM | 0.3 µg/m³ | 0.1 µg/m³ | 0.4 µg/m³ | Estimated AQI* ≈2 | Good wildfire smoke |
| Sep 10, 3:00 AM | 0.2 µg/m³ | 0.1 µg/m³ | 0.4 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 4:00 AM | 0.2 µg/m³ | 0.1 µg/m³ | 0.3 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 5:00 AM | 0.2 µg/m³ | 0.1 µg/m³ | 0.2 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 6:00 AM | 0.1 µg/m³ | 0.1 µg/m³ | 0.2 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 7:00 AM | 0.1 µg/m³ | 0.1 µg/m³ | 0.2 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 8:00 AM | 0.1 µg/m³ | 0.1 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 9:00 AM | 0.1 µg/m³ | 0 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 10:00 AM | 0.1 µg/m³ | 0 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈1 | Good wildfire smoke |
| Sep 10, 11:00 AM | 0 µg/m³ | 0 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 12:00 PM | 0 µg/m³ | 0 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 1:00 PM | 0 µg/m³ | 0 µg/m³ | 0.1 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 2:00 PM | 0 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 3:00 PM | 0 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 4:00 PM | 0 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 5:00 PM | 0 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈0 | Good wildfire smoke |
| Sep 10, 6:00 PM | 0 µg/m³ | 0 µg/m³ | 0 µg/m³ | Estimated AQI* ≈0 | 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)Recent changes
30-day fire danger history
Last 30 days
Changed from Very High to Moderate on Aug 17.
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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