Sioux Falls Now Under Excessive Heat Warning Sunday

The National Weather Service has upgraded the previously issued Heat Advisory for much of eastern South Dakota, to an Excessive Heat Warning.

The Warning includes Sioux Falls and parts of Iowa and Minnesota for Sunday afternoon and evening (August 25, 2024).

Hot temperatures and high humidity are in the forecast for this weekend. Be prepared, the heat may cause heat illnesses. Heat index values near 110 degrees are expected, The National Weather Service says.

...EXCESSIVE HEAT WARNING IN EFFECT FROM 1 PM TO 8 PM CDT SUNDAY...

* WHAT...Dangerously hot conditions with heat index values up to 110 
  expected.

* WHERE...Portions of northwest and west central Iowa, southwest 
  Minnesota, northeast Nebraska, and east central, south central, 
  and southeast South Dakota.

* WHEN...From 1 PM to 8 PM CDT Sunday.

* IMPACTS...Heat related illnesses increase significantly during 
  extreme heat and high humidity events.

TIPS: What is Heat Stroke and How to Prevent it?

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FLASHBACK: Midwest Swelters In 1988: Sioux Falls Hits Record 110 Degrees

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
220 AM CDT Sat Aug 24 2024

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ050-063>071-241700-
/O.CON.KFSD.HT.Y.0006.240825T1800Z-240826T0100Z/
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-Buena
Vista-Woodbury-Ida-Dixon-Dakota-Gregory-Charles Mix-Douglas-
Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Clay-Union-
Including the cities of Canton, North Sioux City, Hawarden,
Lennox, Le Mars, Freeman, Rock Rapids, Springfield, Vermillion,
Chancellor, Clayton, Allen, Spirit Lake, Scotland, Yankton,
Jefferson, Viborg, Ponca, Inwood, Ida Grove, Larchwood, Burke,
Tripp, Centerville, Wagner, Irene, Menno, Sheldon, Sanborn, Lake
Andes, Milford, Hull, South Sioux City, Harrisburg, Tyndall, Rock
Valley, George, Marty, Sioux Center, Parkston, Marion, Sioux
City, Tabor, Parker, Elk Point, Alcester, Delmont, Avon, Corsica,
Storm Lake, Beresford, Holstein, Platte, Wakefield, Spencer,
Armour, Tea, Battle Creek, Hurley, Hartley, Orange City, Gregory,
Sibley, Arnolds Park, and Cherokee
220 AM CDT Sat Aug 24 2024

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 8 PM CDT SUNDAY...

* WHAT...Heat index values up to 108 expected.

* WHERE...Portions of northwest and west central Iowa, northeast
  Nebraska, and south central and southeast South Dakota.

* WHEN...From 1 PM to 8 PM CDT Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

* ADDITIONAL DETAILS...Hot and humid conditions may continue into
  Monday, requiring additional heat related advisories or warnings.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Monitor the latest forecasts and warnings for updates.