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Other Weather Alerts |
Type |
Flash Flood Watch |
Flash Flood Watch
Tue Aug 26 01:11:00 PDT 2025
Mon Aug 25 11:46:00 PDT 2025
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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 |
|
Region |
Alert |
Colorado |
Flash Flood Warning
|
South Dakota |
Flood Warning (10)
|
Iowa |
Flood Warning (4)
|
South Carolina |
Flood Warning (5)
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Georgia,South Carolina |
Flood Warning (2)
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Florida |
Flood Warning (3)
|
Minnesota |
Flood Warning (20)
|
California |
Flood Warning (4)
|
New Mexico |
Flood Warning (2)
|
Oklahoma |
Flood Warning (2)
|
Minnesota |
Winter Weather Warning, Watch, or Advisory (3)
|
Alaska |
Winter Weather Warning, Watch, or Advisory (3)
|
Idaho,Oregon |
Flash Flood Watch (3)
|
Montana |
Flash Flood Watch
|
Idaho |
Public Severe Weather Alert (4)
|
Oregon,Washington |
Public Severe Weather Alert (18)
|
North Carolina |
Coastal Flood Warning, Watch, or Statement
|
Oklahoma |
Coastal Flood Warning, Watch, or Statement (3)
|
Alaska |
Flood Statement (9)
|
Iowa |
Flood Statement (6)
|
Nevada |
Flood Statement
|
Oklahoma |
Flood Statement (4)
|
Arizona |
Flood Statement (3)
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New Mexico |
Flood Statement (2)
|
California,Nevada |
Flood Statement (2)
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Colorado,Utah |
Flood Statement (2)
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Alaska |
Special Weather Statement (2)
|
Idaho |
Air Stagnation Advisory (4)
|
Wyoming |
Air Stagnation Advisory
|
Texas |
Air Stagnation Advisory
|
Idaho,Washington |
Non Precipitation Warning, Watch, or Statement (18)
|
Oregon,Washington |
Non Precipitation Warning, Watch, or Statement (12)
|
Alaska |
Non Precipitation Warning, Watch, or Statement (17)
|
California,Oregon |
Red Flag Warning (5)
|
Washington |
Red Flag Warning (2)
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North Carolina,Virginia |
Marine Weather Statement (3)
|
Florida |
Marine Weather Statement
|
Coastal Maine,Coastal Atlantic (south to NC) |
Marine Weather Statement (10)
|
Lake Huron |
Marine Weather Statement (5)
|
Ohio,Pennsylvania |
Marine Weather Statement (3)
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Lake Erie |
Marine Weather Statement
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Lake Huron |
Marine Weather Statement
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Indiana,Michigan |
Marine Weather Statement (22)
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New York |
Marine Weather Statement (8)
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Lake Ontario |
Marine Weather Statement (5)
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Coastal Oregon,Coastal Oregon-California,Coastal California-Oregon |
Marine Weather Statement (15)
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Lake Ontario |
Marine Weather Statement
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Lake Erie |
Marine Weather Statement
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Lake Huron |
Marine Weather Statement
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Lake Ontario |
Marine Weather Statement
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Lake Erie |
Marine Weather Statement
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Lake Huron |
Marine Weather Statement
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Lake Ontario |
Marine Weather Statement
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Lake Huron |
Marine Weather Statement
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Alaska |
River Statement (6)
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Idaho,Montana |
River Statement (3)
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