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Excessive Heat Warning — Corson, SD, Campbell, SD, Walworth, SD, Dewey, SD, Potter, SD, McPherson, SD, Brown, SD, Marshall, SD, Roberts, SD, Edmunds, SD, Day, SD, Faulk, SD, Spink, SD, Grant, SD, Stanley, SD, Sully, SD, Hughes, SD, Hyde, SD, Hand, SD, Jones, SD, Lyman, SD, Buffalo, SD
Issued
Expires
10:00 PM CDT · Thu, Jul 16 2026
Issuing Office
NWS KABR

Affected Areas

Corson, SD Campbell, SD Walworth, SD Dewey, SD Potter, SD McPherson, SD Brown, SD Marshall, SD Roberts, SD Edmunds, SD Day, SD Faulk, SD Spink, SD Grant, SD Stanley, SD Sully, SD Hughes, SD Hyde, SD Hand, SD Jones, SD Lyman, SD Buffalo, SD

Official Bulletin

993
WWUS73 KABR 122254
NPWABR

URGENT - WEATHER MESSAGE
National Weather Service Aberdeen SD
554 PM CDT Sun Jul 12 2026

SDZ003-004-009-015-016-130900-
/O.CON.KABR.XH.W.0001.000000T0000Z-260717T0300Z/
Corson-Campbell-Walworth-Dewey-Potter-
Including the cities of Gettysburg, Mobridge, Herreid, McIntosh, and
Isabel
554 PM CDT Sun Jul 12 2026 /454 PM MDT Sun Jul 12 2026/

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/
THURSDAY...

* WHAT...Prolonged dangerously hot conditions with heat index values
  up to 105 each afternoon.

* WHERE...Campbell, Corson, Dewey, Potter, and Walworth Counties.

* WHEN...Until 10 PM CDT /9 PM MDT/ Thursday.

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

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.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

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.

&&

$$

MNZ039-046-SDZ005>008-010-011-017-018-021-130900-
/O.CON.KABR.HT.Y.0002.000000T0000Z-260717T0300Z/
Traverse-Big Stone-McPherson-Brown-Marshall-Roberts-Edmunds-Day-
Faulk-Spink-Grant-
Including the cities of Aberdeen, Redfield, Wheaton, Sisseton,
Milbank, Faulkton, Ortonville, Ipswich, Eureka, Webster, and Britton
554 PM CDT Sun Jul 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THURSDAY...

* WHAT...Heat index values up to 100 each afternoon.

* WHERE...Portions of west central Minnesota and north central and
  northeast South Dakota.

* WHEN...Until 10 PM CDT Thursday.

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

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.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

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.

&&

$$

SDZ033>037-045-048-051-130900-
/O.CON.KABR.HT.Y.0002.000000T0000Z-260717T0300Z/
Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Onida, Miller, Fort Pierre, Kennebec,
Highmore, Murdo, Fort Thompson, and Pierre
554 PM CDT Sun Jul 12 2026 /454 PM MDT Sun Jul 12 2026/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/
THURSDAY...

* WHAT...Heat index values up to 100 each afternoon.

* WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, and
  Sully Counties.

* WHEN...Until 10 PM CDT /9 PM MDT/ Thursday.

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

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.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

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.

&&

$$

06