574
WWUS75 KBOI 210500
NPWBOI

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
1000 PM MST Thu Nov 20 2025

IDZ012-014-016-211700-
/O.NEW.KBOI.FG.Y.0006.251121T0500Z-251121T1700Z/
Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley-
Including the cities of Caldwell, Nampa, Twin Falls, and Boise
1000 PM MST Thu Nov 20 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM MST FRIDAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Lower Treasure Valley and Upper Treasure Valley in
  southwest Idaho. Portions of the western Magic Valley.

* 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.

&&

$$