National Weather Service issues Flood Watch
National Weather Service-Missoula has issued a Flood Watch for Monday morning through late Tuesday night for portions of Idaho and Montana.
It includes the following areas, in Idaho, Lower Hells Canyon/Salmon River Region, Orofino/Grangeville Region, Southern Clearwater Mountains and Northern Clearwater Mountains, In Montana, Bitterroot/Sapphire Mountains, Butte/Blackfoot Region, Flathead/Mission Valleys, Lower Clark Fork Region, Missoula/Bitterroot Valleys, Potomac/Seeley Lake Region and West Glacier Region.
Beginning late on Sunday and continuing through at least Tuesday morning, heavy rainfall is expected to impact the Northern Rockies. In addition to rain, lowering snow levels (down to 6000-7000 feet) and a significant drop in temperatures for both valleys and mountains will also occur. Potential threats from this Sunday-Tuesday time period will be standing water on roads and properties, rapid rises on streams and rivers, and inclement backcountry conditions (particularly across southwest Montana into Lemhi County, Idaho).
A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
(Graphic by National Weather Service-Missoula)
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