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WWUS75 KBOI 271637

NPWBOI



URGENT - WEATHER MESSAGE

National Weather Service Boise ID

937 AM MST Thu Nov 27 2025



IDZ012-014-ORZ064-271800-

/O.EXT.KBOI.FG.Y.0009.000000T0000Z-251127T1800Z/

Lower Treasure Valley-Upper Treasure Valley-Oregon Lower Treasure

Valley-

Including the cities of Nampa, Caldwell, Nyssa, Ontario, and

Boise

937 AM MST Thu Nov 27 2025 /837 AM PST Thu Nov 27 2025/



...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM MST /10 AM PST/ THIS 

MORNING...



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



* WHERE...Treasure Valley Zones.



* WHEN...Until 11 AM MST /10 AM PST/ this morning. Signs of clearing 

  have been observed, but are working slower than forecast so the 

  advisory has been extended.



* 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.



&&



$$



JM