Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Riverton WY
538 AM MDT Fri Apr 17 2026

WYZ001>020-022>030-181300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
538 AM MDT Fri Apr 17 2026

...Winter Weather Advisory for Natrona County and the Green
Mountains until noon today...

...A Freeze Warning is in effect for many of the lower elevations
East of the Divide this morning and Saturday morning...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Steady snow ending this morning. Further snow showers today will
leave light accumulations.

A hard freeze is likely late tonight East of the Divide.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday morning...A hard freeze is likely in the lower elevations
East of the Continental Divide.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
541 AM MDT Fri Apr 17 2026

WYZ003-005-180000-
/O.CON.KRIW.FZ.W.0001.000000T0000Z-260418T1500Z/
Cody Foothills-Southwest Bighorn Basin-
Including the cities of Clark, Cody, Meeteetse, and Thermopolis
541 AM MDT Fri Apr 17 2026

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT SATURDAY...

* WHAT...Sub-freezing overnight temperatures in the upper teens to
  low 20s expected.

* WHERE...Southwest Bighorn Basin and Cody Foothills.

* WHEN...Until 9 AM MDT Saturday.

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

* ADDITIONAL DETAILS...The coldest temperatures are expected to
  occur for a period of time before sunrise on Friday and Saturday
  mornings.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold and winterize
sprinkler systems.

&&

$$

Hazard Report Provided By forecast.weather.gov