Active Weather Alerts
Dense Fog Advisory
Issued: 6:21 AM Nov. 21, 2025 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM MST FRIDAY... * WHAT...Visibility less than a quarter mile in dense fog. * WHERE...Cache Valley/Utah Portion and Eastern Box Elder County including the I-15 corridor from Brigham City to the Utah/Idaho state line. * WHEN...Until 10 AM MST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&
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