Utah Freeze Warning | Effective 04/18/2026 10:47

Headline: 
Freeze Warning issued April 18 at 11:47AM MDT until April 19 at 10:00AM MDT by NWS Salt Lake City UT
Event: 
Freeze Warning
Urgency: 
Expected
Effective: 
April 18, 2026 - 10:47am
Expires: 
April 19, 2026 - 2:00am
Description: 
* WHAT...Widespread sub-freezing temperatures in the upper 20s to low 30s. * WHERE...Castle Country, Eastern Juab/Millard Counties, San Rafael Swell, Sanpete Valley, Sevier Valley, Western Millard and Juab Counties, Eastern Box Elder County, Western Uinta Basin, and Southwest Utah. * WHEN...From 10 PM this evening to 10 AM MDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Instruction: 
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing, wrap or drain or allow them to drip slowly. Drain in-ground sprinkler systems and cover above ground pipes.
Area Description: 
Eastern Box Elder County; Western Uinta Basin; Western Millard and Juab Counties; Eastern Juab/Millard Counties; Sanpete Valley; Sevier Valley; Castle Country; San Rafael Swell; Southwest Utah
Forcast Office: 
NWS Salt Lake City UT