670
WWUS75 KCYS 161236
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
636 AM MDT Sun Aug 16 2026

WYZ117-161345-
/O.EXP.KCYS.FG.Y.0008.000000T0000Z-260816T1300Z/
South Laramie Range Foothills-
Including the cities of Whitaker, Horse Creek, and Federal
636 AM MDT Sun Aug 16 2026

...DENSE FOG ADVISORY WILL EXPIRE AT 7 AM MDT THIS MORNING...

Visibility has improved along Interstate 80 from Cheyenne to Buford.
Therefore, the Dense Fog Advisory will be allowed to expire at 7 AM
MDT.

$$

WYZ116-161400-
/O.EXT.KCYS.FG.Y.0008.000000T0000Z-260816T1400Z/
South Laramie Range-
Including the cities of Vedauwoo, Pumpkin Vine, and Buford
636 AM MDT Sun Aug 16 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 8 AM MDT THIS MORNING...

* WHAT...Visibility as low as a quarter mile in dense fog.

* WHERE...South Laramie Range including the Interstate 80 Summit
  between Cheyenne and Laramie.

* WHEN...Until 8 AM MDT this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

* ADDITIONAL DETAILS...Very poor visibility continues at the
  Interstate 80 Summit.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

Mose