Extreme Heat Watch issued June 18 at 11:45PM CDT until June 22 at 9:00PM CDT by NWS Aberdeen SD
* WHAT...Dangerously hot conditions with heat index values from 100 to 105 possible. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 10:04PM CDT until June 22 at 7:00PM CDT by NWS Duluth MN
* WHAT...Dangerously hot conditions with heat index values up to 103 possible. * WHERE...In Minnesota, Crow Wing, Pine, South Aitkin, and South and Cass Counties. In Wisconsin, Price, Burnett, Sawyer, and Washburn Counties. This includes the Tribal Lands of the St. Croix Band in Burnett County, the Lac Courte Oreilles Reservation and the Mille Lacs Band, Hinckley, Lena Lake and, East Lake areas. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 3:47PM CDT until June 22 at 7:00PM CDT by NWS Grand Forks ND
* WHAT...Dangerously hot conditions with heat index values up to 103 possible. * WHERE...Hubbard, Lake Of The Woods, North Beltrami, South Beltrami, East Becker, Mahnomen, North Clearwater, South Clearwater, and West Becker Counties. * WHEN...From Sunday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 9:54PM CDT until June 22 at 9:00PM CDT by NWS Des Moines IA
* WHAT...Dangerously hot conditions with heat index values of 105 to 110 degrees possible at times. * WHERE...Much of Iowa. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...A heat wave will begin across Iowa on Friday and intensify this weekend, resulting in several consecutive days of dangerously hot and humid conditions that may last into early next week.
Extreme Heat Watch issued June 18 at 8:26PM CDT until June 21 at 10:00PM CDT by NWS Sioux Falls SD
* WHAT...Dangerously hot conditions with heat index values up to 108 possible. * WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and central, east central, south central, and southeast South Dakota. * WHEN...From Friday morning through Saturday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 2:19PM CDT until June 22 at 9:00PM CDT by NWS La Crosse WI
* WHAT...Dangerously hot conditions with heat index values up to 105 possible. * WHERE...Portions of north central and northeast Iowa, southeast Minnesota, and southwest and west central Wisconsin. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 1:42PM CDT until June 22 at 9:00PM CDT by NWS Omaha/Valley NE
* WHAT...Dangerously hot conditions with heat index values up to 110 possible. * WHERE...Portions of eastern Nebraska and western Iowa. * WHEN...From Friday morning through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Extreme Heat Watch issued June 18 at 9:39PM CDT until June 22 at 9:00PM CDT by NWS Quad Cities IA IL
* WHAT...Dangerously hot conditions with heat index values above 105 possible for multiple days, potentially into early next week. * WHERE...Portions of northwest Illinois and east central, northeast, and southeast Iowa. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...There is forecast to be little reprieve during the nights, with low temperatures in the mid to possibly upper 70s.
Extreme Heat Warning issued June 18 at 4:00AM MST until June 20 at 9:00PM MST by NWS Tucson AZ
* WHAT...For the Thursday through Friday Extreme Heat Warning, dangerously hot conditions with temperatures up to 115 possible in the Tucson metropolitan area, Gila River Valley, and across western and central Pima County including the Tohono O'odham Nation. High temperatures elsewhere will be 102 to 108 degrees. * WHERE...Eastern Cochise County below 5000 feet, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, and Western Pima County. * WHEN...From 10 AM Thursday to 9 PM MST Friday. * IMPACTS...Heat related illnesses
Extreme Heat Warning issued June 18 at 3:39AM MST until June 20 at 7:00PM MST by NWS Flagstaff AZ
* WHAT...Dangerously hot conditions below 4000 feet, with daytime temperatures ranging from 102 degrees at Havasupai Gardens, to 114 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 7 PM MST Friday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure.