fra: 19.05.2026, 21:00
til: 20.05.2026, 06:00

* WHAT...Sub-freezing temperatures between 20 and 30 degrees expected. * WHERE...Upper North Platte River Basin and South Laramie Range. * WHEN...From 9 PM this evening to 10 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

fra: 19.05.2026, 21:00
til: 20.05.2026, 06:00

* WHAT...Sub-freezing temperatures between 15 and 25 degrees expected. * WHERE...Central Carbon County, Ferris/Seminoe/Shirley Mountains, North Snowy Range Foothills, Shirley Basin, and Southwest Carbon County. * WHEN...From 9 PM this evening to 10 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

fra: 20.05.2026, 00:00
til: 20.05.2026, 06:00

* WHAT...Sub-freezing temperatures between 25 and 32 degrees expected. * WHERE...Converse County Lower Elevations and Laramie Valley. * WHEN...From midnight tonight to 8 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

fra: 20.05.2026, 00:00
til: 20.05.2026, 06:00

* WHAT...Temperatures as low as 28 will result in frost formation. * WHERE...In Nebraska, Northern Sioux County. In Wyoming, Niobrara County, Central Laramie Range and Southwest Platte County, East Platte County, and South Laramie Range Foothills. * WHEN...From midnight tonight to 8 AM MDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.