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  Storm Center: Weather Alerts: Warnings


 
My Location: San Francisco, CA 
 
Current Time: 03:16:29 PM PDT
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Flash Flood Watch

Flash Flood Watch
Mon Aug 25 11:46:00 PDT 2025
Issued By NWS Boise ID
Issuing Time Mon, 25 Aug 2025 10:41:00 PDT
Broadcast Time Mon, 25 Aug 2025 10:41:00 PDT
Valid Until Wed, 27 Aug 2025 23:00:00 PDT
Brief Description Flash Flood Watch
Detailed Description A surge of deep monsoonal moisture combined with a slow-moving upper trough will bring periods of heavy showers and thunderstorms across the region. This airmass contains anomalously high moisture content, supporting the potential for excessive rainfall. Flash flooding will be possible, especially in steep terrain, narrow canyons, and near recent burn scars where soils are less able to absorb rainfall. The greatest risk will be Tuesday afternoon through Wednesday evening as repeated rounds of storms move through. * WHAT. Flash flooding caused by excessive rainfall is possible. * WHERE. Portions of Idaho, including the following areas, Boise Mountains, Camas Prairie, Lower Treasure Valley, Owyhee Mountains, Southern Twin Falls County, Southwest Highlands, Upper Treasure Valley, Upper Weiser River, West Central Mountains and Western Magic Valley. Portions of Oregon, including the following areas, Baker County, Harney County, Malheur County and Oregon Lower Treasure Valley. * WHEN. From Tuesday afternoon through Wednesday evening. * IMPACTS. Heavy rainfall could trigger flash flooding or debris flows in and near recent wildfire burn scars. In addition urban street flooding is possible with the stronger storms. * ADDITIONAL DETAILS. - https://www.weather.gov/safety/flood
       
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