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NOAA's National Weather Service
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WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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| El Dorado County | ||
| Effective: Wed, 8/12 11:04am | Severity: Severe | |
| Updated: August 12, 2026 1:15 pm | Urgency: Expected | |
| Expires: Thu, 8/13 5:00pm | Certainty: Likely | |
| Areas Affected: Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50 - Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ft | ||
Alert
Details:
The National Weather Service in Sacramento has issued a Red Flag Warning for thunderstorms and strong outflow winds, which is in effect from 5 AM to 9 PM PDT Thursday. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Zone 136 Sierra (El Dorado-Amador) Above 5000 ft and Fire Zone 139 Sierra (Cal-Tuo) Above 5000 ft. * Thunderstorms...Isolated to scattered coverage of a mix of wet and dry thunderstorms expected. Lightning strikes may also occur outside of main precipitation cores. * Outflow Winds...Gusty and erratic outflow winds could occur near any thunderstorm development. * Impacts...Lightning can create new fire starts and may combine with strong outflow winds to cause a fire to rapidly grow in size and intensity. Information: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. |
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| El Dorado County | ||
| Effective: Wed, 8/12 12:22pm | Severity: Severe | |
| Updated: August 12, 2026 1:15 pm | Urgency: Future | |
| Expires: Thu, 8/13 1:45pm | Certainty: Possible | |
| Areas Affected: Greater Lake Tahoe and Truckee Area | ||
Alert
Details:
* CHANGES...None. * Affected Area...Fire Weather Zone 272 Greater Lake Tahoe and Truckee Area. * Thunderstorms...Thunderstorm chances increase to 15 to 30 percent for Thursday leading to lightning strikes on dry fuels especially early Thursday morning. Thunderstorms will produce hail and periods of moderate to heavy rainfall Thursday afternoon and evening. * Outflow Winds...Up to 40 mph. * Impacts...Lightning can create new fire starts and may combine with strong outflow winds to cause a fire to rapidly grow in size and intensity before first responders can contain them. Information: Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. |
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| El Dorado County | ||
| Effective: Wed, 8/12 11:41am | Severity: Moderate | |
| Updated: August 12, 2026 1:15 pm | Urgency: Expected | |
| Expires: Wed, 8/12 1:30pm | Certainty: Observed | |
| Areas Affected: Greater Lake Tahoe Area - Mono - Mineral and Southern Lyon Counties - Greater Reno-Carson City-Minden Area - Western Nevada Basin and Range including Pyramid Lake | ||
Alert
Details:
At 1139 AM PDT, strong thunderstorms were developing across Mono, Mineral, southern Lyon, and Douglas counties. These storms will increase in coverage northward through the afternoon. HAZARD...Wind gusts 40 to 50 mph, half inch size hail, heavy rainfall with the potential for flash flooding, and blowing dust downwind of dry sinks and playas. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Heavy rain may cause flash flooding, debris flows and flooded roads. Blowing dust could lower visibility and make travel dangerous. Locations impacted include... Reno, Carson City, Fallon, Mammoth Lakes, Chalfant, Crowley Lake, Sonora Pass, Gardnerville, Virginia City, June Lake, Lee Vining, Twin Lakes, Lahontan Reservoir, Toms Place, Bodie, Benton, Bridgeport, Mono Lake, Coleville, and Topaz Lake. Information: If outdoors, consider seeking shelter inside a building. Turn around, don't drown when encountering flooded roads. |
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