* WHAT…Heavy snow expected. Total snow accumulations between 5 and
10 inches below 7000 feet with locally higher amounts closer to 12
inches in the Ketchum area. Total snow accumulations between 10
and 14 inches above 7000 feet.
* WHERE…Big Lost Highlands/Copper Basin, Frank Church Wilderness,
Lost River Valley, Sawtooth/Stanley Basin, Sun Valley Region, Wood
River Foothills, Beaverhead – Lemhi Highlands, and Arco/Mud Lake
Desert.
* WHEN…From 2 AM Saturday to 5 AM MST Sunday.
* IMPACTS…Travel could be very difficult to impossible.
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK…
No watches are valid as of Mon Apr 21 12:35:01 UTC 2025.
No Mesoscale Discussions are in effect as of Mon Apr 21 12:35:01 UTC 2025.
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0307 AM…
* AFFECTED AREA...Fire Weather Zones 242, 244, 246, 247, 248, 249, 250 and 251. *…
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Trinity County. *…
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