617
WWUS75 KCYS 070233
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
833 PM MDT Mon Oct 6 2025

WYZ101-102-104-110-111-071400-
/O.CON.KCYS.FZ.W.0002.251007T0600Z-251007T1500Z/
Converse County Lower Elevations-Niobrara County-
Ferris/Seminoe/Shirley Mountains-North Snowy Range Foothills-
Southwest Carbon County-
Including the cities of Bill, Arlington, Lusk, Elk Mountain,
Glenrock, Seminoe Dam, Deer Creek, Douglas, Baggs, and Redbird
833 PM MDT Mon Oct 6 2025

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT TUESDAY...

* WHAT...Sub-freezing temperatures as low as 25 expected.

* WHERE...Converse County Lower Elevations, Ferris/Seminoe/Shirley
  Mountains, North Snowy Range Foothills, and Southwest Carbon
  County.

* WHEN...From midnight tonight to 9 AM MDT Tuesday.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

WYZ116-071400-
/O.NEW.KCYS.FG.Y.0019.251007T0233Z-251007T1400Z/
South Laramie Range-
Including the cities of Vedauwoo, Pumpkin Vine, and Buford
833 PM MDT Mon Oct 6 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM MDT TUESDAY...

* WHAT...Visibility below one quarter mile in dense fog. Some
  Freezing fog is possible after midnight.

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

* WHEN...Until 8 AM MDT Tuesday.

* 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.

&&

$$

NEZ002-003-095-096-WYZ108-071400-
/O.CON.KCYS.FR.Y.0001.251007T0600Z-251007T1500Z/
Dawes County-Box Butte County-Northern Sioux County-Southern
Sioux County-Goshen County-
Including the cities of Agate, Chadron, Alliance, Torrington,
Chadron St Park, Harrison, and Hemingford
833 PM MDT Mon Oct 6 2025

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT TUESDAY...

* WHAT...Temperatures as low as 32 will result in frost formation.

* WHERE...In Nebraska, Box Butte County, Dawes County, Northern
  Sioux County, and Southern Sioux County. In Wyoming, Goshen County.

* WHEN...From midnight tonight to 9 AM MDT Tuesday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

Trudel