Alert archive / South Dakota / Red Flag Warnings

Red Flag Warnings in South Dakota, 2026

71 red flag warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of red flag warnings reaches back to 2005.

Red Flag Warnings by county

Each county as a circle sized by its count in 2026. Tap one for its archive.

Red Flag Warnings
71
Busiest month
April17 red flag warnings
Busiest day
February 27, 20263 red flag warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Feb 14, 1:18 PM CSTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more29 hr
Feb 14, 8:31 PM CSTRed Flag WarningFSDAurora, Brule, Charles Mix, Davison, Douglas, Gregory and 2 more21 hr
Feb 14, 10:46 PM CSTRed Flag WarningABRBuffalo, Jones, Lyman19 hr
Feb 16, 12:41 PM CSTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 7 more30 hr
Feb 17, 10:06 PM CSTRed Flag WarningFSDAurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 10 more20 hr
Feb 26, 9:28 PM CSTRed Flag WarningFSDAurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 12 more21 hr
Feb 26, 11:04 PM CSTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 2 more20 hr
Feb 27, 12:10 PM CSTRed Flag WarningABRBuffalo, Jones, Lyman6 hr
Mar 9, 3:00 AM CDTRed Flag WarningUNRCuster, Fall River16 hr
Mar 11, 8:48 PM CDTRed Flag WarningABRBuffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 10 more24 hr
Mar 11, 8:50 PM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brule, Charles Mix, Clay and 15 more23 hr
Mar 11, 11:23 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Haakon, Jackson, Meade and 5 more21 hr
Mar 17, 2:26 PM CDTRed Flag WarningUNRCuster, Fall River, Oglala Lakota30 hr
Mar 18, 10:52 PM CDTRed Flag WarningUNRButte, Custer, Fall River, Jackson, Lawrence, Meade and 2 more21 hr
Mar 19, 10:57 PM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 4 more47 hr
Mar 20, 12:00 PM CDTRed Flag WarningFSDBon Homme, Charles Mix, Clay, Gregory, Union, Yankton34 hr
Mar 20, 12:09 PM CDTRed Flag WarningUNRButte, Haakon, Jackson, Meade, Mellette, Pennington and 2 more34 hr
Mar 24, 1:35 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Lawrence, Meade and 2 more33 hr
Mar 27, 11:09 AM CDTRed Flag WarningABRBuffalo, Clark, Codington, Day, Deuel, Faulk and 8 more34 hr
Mar 27, 11:17 AM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more34 hr
Mar 27, 12:10 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more31 hr
Mar 29, 1:10 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Lawrence, Meade and 4 more32 hr
Apr 10, 12:21 PM CDTRed Flag WarningUNRCuster, Fall River, Jackson, Meade, Oglala Lakota, Pennington3 days
Apr 11, 1:06 PM CDTRed Flag WarningUNRBennett, Haakon, Jackson, Mellette, Todd, Tripp57 hr
Apr 11, 1:33 PM CDTRed Flag WarningABRBuffalo, Hughes, Jones, Lyman, Stanley29 hr
Apr 11, 1:52 PM CDTRed Flag WarningFSDAurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 15 more29 hr
Apr 12, 1:55 PM CDTRed Flag WarningABRJones, Lyman, Stanley28 hr
Apr 15, 12:09 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more32 hr
Apr 15, 12:28 PM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more32 hr
Apr 15, 1:20 PM CDTRed Flag WarningABRBrown, Buffalo, Clark, Codington, Day, Deuel and 16 more31 hr
Apr 18, 2:10 AM CDTRed Flag WarningUNRCuster, Fall River, Oglala Lakota18 hr
Apr 19, 12:42 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more32 hr
Apr 20, 1:35 AM CDTRed Flag WarningFSDBrookings, Kingsbury, Lake, Minnehaha, Moody18 hr
Apr 20, 1:54 AM CDTRed Flag WarningABRClark, Codington, Deuel, Grant, Hamlin, Roberts18 hr
Apr 21, 11:52 AM CDTRed Flag WarningABRBrown, Buffalo, Campbell, Clark, Codington, Corson and 20 more32 hr
Apr 21, 12:54 PM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more31 hr
Apr 21, 1:48 PM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 9 more31 hr
Apr 23, 2:00 AM CDTRed Flag WarningABRClark, Codington, Day, Deuel, Grant, Hamlin and 2 more17 hr
Apr 23, 2:13 AM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 16 more18 hr
May 8, 7:59 AM CDTRed Flag WarningABRBrown, Clark, Codington, Day, Deuel, Grant and 4 more12 hr
May 10, 12:56 PM CDTRed Flag WarningABRHughes, Jones, Lyman, Stanley32 hr
May 10, 1:08 PM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 9 more32 hr
May 11, 2:37 PM CDTRed Flag WarningABRBrown, Buffalo, Campbell, Clark, Codington, Day and 16 more30 hr
May 11, 3:07 PM CDTRed Flag WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more30 hr
May 12, 1:27 PM CDTRed Flag WarningABRCorson, Dewey, Jones, Stanley33 hr
May 12, 2:19 PM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 5 more56 hr
May 13, 1:54 PM CDTRed Flag WarningFSDBon Homme, Brookings, Clay, Hanson, Hutchinson, Kingsbury and 9 more30 hr
May 13, 2:27 PM CDTRed Flag WarningABRBrown, Buffalo, Campbell, Clark, Codington, Corson and 20 more32 hr
May 14, 1:57 PM CDTRed Flag WarningFSDBeadle, Brookings, Kingsbury28 hr
May 14, 10:33 PM CDTRed Flag WarningABRBrown, Campbell, Clark, Codington, Corson, Day and 17 more22 hr
May 16, 12:04 AM CDTRed Flag WarningABRBuffalo, Hughes, Hyde, Jones, Lyman, Stanley and 1 more22 hr
Jun 9, 8:59 PM CDTRed Flag WarningUNRCuster, Fall River, Oglala Lakota24 hr
Jun 14, 12:50 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington32 hr
Jun 16, 2:53 AM CDTRed Flag WarningUNRCuster, Fall River, Oglala Lakota18 hr
Jun 16, 11:15 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington22 hr
Jun 29, 5:28 AM CDTRed Flag WarningUNRCuster, Fall River, Jackson, Oglala Lakota, Pennington17 hr
Jul 11, 12:55 PM CDTRed Flag WarningUNRButte, Custer, Fall River, Haakon, Jackson, Lawrence and 5 more3 days
Jul 12, 10:47 PM CDTRed Flag WarningABRCorson, Dewey22 hr
Jul 19, 12:52 PM CDTRed Flag WarningABRCampbell, Corson, Dewey, Potter, Walworth32 hr
Jul 24, 10:37 AM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 6 more34 hr
Aug 2, 12:19 PM CDTRed Flag WarningUNRBennett, Butte, Custer, Fall River, Haakon, Jackson and 6 more33 hr
Aug 2, 1:02 PM CDTRed Flag WarningABRCorson, Dewey, Jones, Potter, Stanley, Sully32 hr
Aug 5, 12:13 PM CDTRed Flag WarningUNRButte, Custer, Fall River33 hr
Aug 7, 6:46 PM CDTRed Flag WarningUNRButte, Lawrence, Meade26 hr
Aug 10, 2:14 AM CDTRed Flag WarningUNRCuster, Fall River19 hr
Sep 2, 1:22 PM CDTRed Flag WarningUNRCuster, Fall River, Oglala Lakota32 hr
Sep 3, 10:19 PM CDTRed Flag WarningUNRButte23 hr
Sep 6, 10:40 PM CDTRed Flag WarningUNRCuster, Fall River21 hr
Sep 8, 9:23 AM CDTRed Flag WarningABRCampbell, Corson, Dewey, Potter, Sully, Walworth10 hr
Sep 10, 12:12 PM CDTRed Flag WarningUNRBennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington31 hr
Sep 11, 1:36 AM CDTRed Flag WarningABRBuffalo, Hand, Hughes, Hyde, Jones, Lyman and 1 more17 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

25 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. February 27, 20263red flag warnings
  2. March 12, 20263red flag warnings
  3. March 20, 20263red flag warnings
  4. March 27, 20263red flag warnings
  5. April 11, 20263red flag warnings
  6. April 15, 20263red flag warnings
  7. April 21, 20263red flag warnings
  8. February 15, 20262red flag warnings
  9. April 20, 20262red flag warnings
  10. April 23, 20262red flag warnings
  11. May 10, 20262red flag warnings
  12. May 11, 20262red flag warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.