Wyoming Weather & Safety Alerts
3 active alerts ยท Updated July 19, 2026
Data source: National Weather Service (NWS) Last verified: July 19, 2026
Flooding
Flood Watch (WATCH) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Absaroka Mountains; Cody Foothills
Flood Watch issued July 18 at 2:37AM MDT until July 18 at 10:00PM MDT by NWS Riverton WY
WHAT...Flooding caused by excessive rainfall is possible.
WHERE...A portion of northwest Wyoming, including the following areas, Absaroka Mountains and Cody Foothills.
WHEN...From noon MDT today through this evening.
IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
ADDITIONAL DETAILS...
Heavy rain from slow moving thunderstorms may bring local flooding this afternoon and evening.
What to do: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Source: NWS Riverton WY
Extreme Heat
Heat Advisory (ADVISORY) - expires July 19, 2026 at 8:00 AM EDT
Areas affected: Box Butte; Scotts Bluff; Banner; Morrill; South Sioux; Converse County Lower Elevations; Niobrara County; Goshen County
Heat Advisory issued July 18 at 10:17AM MDT until July 20 at 6:00PM MDT by NWS Cheyenne WY
WHAT...Afternoon temperatures in the upper 90's to low 100's with overnight lows in the mid 60's to low 70's.
WHERE...In Nebraska, Banner County, Box Butte County, Morrill County, Scotts Bluff County, and Southern Sioux County. In Wyoming, Converse County Lower Elevations, Niobrara County, and Goshen County.
WHEN...From noon Sunday to 6 PM MDT Monday.
IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
What to do: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Source: NWS Cheyenne WY
Heat Advisory (ADVISORY) - expires July 19, 2026 at 8:00 AM EDT
Areas affected: Harding; Northern Perkins; Butte; Northern Meade Co Plains; Ziebach; Northern Foothills; Rapid City; Southern Foothills; Custer Co Plains; Pennington Co Plains; Haakon; Western Fall River; Northern Oglala Lakota; Northern Jackson; Bennett; Mellette; Todd; Tripp; Sturgis/Piedmont Foothills; Southern Meade Co Plains; Hermosa Foothills; Eastern Fall River; Southern Oglala Lakota; Southern Jackson; Southern Perkins; Northern Campbell; Southern Campbell; Western Crook; Weston County Plains; Newcastle; Northeastern Crook
Heat Advisory issued July 18 at 1:04PM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD
WHAT...Heat index values up to 105.
WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming.
WHEN...Until 9 PM MDT /10 PM CDT/ Sunday.
IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
What to do: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Source: NWS Rapid City SD
Source
Alert data provided by the National Weather Service (NWS). This page shows active alerts only and is refreshed daily. For real-time updates, visit weather.gov.