Mammoth Fire

## Mammoth Fire Report - July 29, 2025 ### Fire Start, Size and Growth **Start Date/Time/Location**: The Mammoth Fire was first reported on Friday, July 25, 2025, around 4:23 PM PDT. It ignited west of the Dry Lake fire station off Highway 139, near Tionesta in Modoc County, California. **Size and Containment**: As of Monday, July 28, 2025, the fire had burned approximately 3,100 acres. Containment has been reported at 42% as of Monday noon, with earlier reports indicating 10% containment on Saturday morning and 50% containment by Monday evening. **Fuels, Growth and Rate of Spread**: The fire is burning in grass, brush, and juniper fuels. It has exhibited active fire behavior, including running, torching, and wind-driven runs, with spotting observed. Erratic winds caused by thunderstorms in the fire area have contributed to the fire's spread and have posed a challenge to containment efforts. Lava reefs are also presenting a challenge for fire containment line construction. **Containment Efforts**: Firefighting efforts involve personnel from the Modoc National Forest (USFS). Crews have been working to establish and reinforce containment lines. The estimated date for full containment was August 1, 2025, as of July 26. ### Emergency Information **Evacuations and Sheltering:** **Evacuation Warnings**: Evacuation warnings have been issued for areas designated as MCU-001 and MCU-002, indicating a potential threat to life and/or property. Residents who need additional time to evacuate, or who have pets and livestock, are advised to leave immediately. **Road and Infrastructure Closures**: While specific road closures related to the Mammoth Fire are not detailed in the provided information, it is generally advised to avoid the fire area to allow firefighters to work effectively. **For more information, visit:** * [CAL FIRE Incident Information for Mammoth Fire](https://www.fire.ca.gov/incidents/2025/7/25/mammoth-fire/) * [ALERTCalifornia Camera Feed - Timber Mtn. 2](https://ops.alertcalifornia.org/cam-console/Axis-TimberMtn2) (Provides live video from the area) * [Modoc National Forest Social Media](https://www.fs.usda.gov/detail/modoc/fire/?cid=STELPRDB5408766) (For updates from the managing agency) ### Current Impact **Impacts:** **Structures Impacted**: No structures have been reported as destroyed as of July 26, 2025. However, structures, energy infrastructure, and railroad infrastructure are threatened by the fire. **Injuries and Fatalities**: No injuries or fatalities have been reported in direct relation to the Mammoth Fire in the provided information. **School and Business Closures**: No specific school or business closures have been reported for the Mammoth Fire. **Power Outages**: Energy infrastructure is noted as being threatened by the fire. **Safety Concerns:** **Burn Bans and Fire Restrictions**: Given the ongoing fire activity and dry conditions, it is advisable for residents to check for any local fire restrictions or burn bans that may be in effect. **Air Quality**: While not explicitly detailed for the Mammoth Fire, wildfire smoke can significantly impact air quality. Residents in the vicinity should monitor local air quality reports and take precautions if smoke is present. ### Ongoing Outlook **Containment Projections**: Containment efforts are ongoing, with the fire currently at 42% contained as of Monday noon, July 28, 2025. Firefighters are working to construct and reinforce containment lines. The estimated containment date was initially projected for August 1, 2025. **Weather and Wind Warnings**: Thunderstorms in the fire area have produced strong, erratic winds with gusts over 30 mph, which have contributed to the fire's spread and threatened containment efforts. Forecasts for July 26 indicated strong southwest winds with gusts up to 20 mph, with temperatures in the mid-80s and relative humidity in the low to mid-20s. ### Cause and the Role of Weather and Climate **Cause**: The cause of the Mammoth Fire is currently under investigation. **Weather and Climate**: The fire's behavior has been significantly influenced by weather conditions, including thunderstorms producing erratic winds. The dry fuels and warm temperatures typical of the California summer season contribute to the overall fire risk. While specific climate change links to this particular fire are not detailed, broader patterns of increased wildfire activity due to climate change are a recognized concern in California. ### For more information, visit: * [CAL FIRE Incident Information](https://www.fire.ca.gov/incidents/) * [InciWeb - Incident Information System](https://inciweb.nwcg.gov/) * [National Interagency Fire Center (NIFC)](https://www.nifc.gov/)

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