WWA Summary for Flood Warning Issued by BIS

Flood Warning

Flood Warning
National Weather Service Aberdeen SD
1212 AM CDT Fri Jul 31 2026

MNC011-155-SDC037-091-109-311415-
/O.NEW.KABR.FA.W.0020.260731T0512Z-260731T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Big Stone MN-Traverse MN-Day SD-Marshall SD-Roberts SD-
1212 AM CDT Fri Jul 31 2026

...FLOOD WARNING IN EFFECT UNTIL 915 AM CDT THIS MORNING...
...REPLACES FLASH FLOOD WARNING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Northwestern Big Stone County in west central Minnesota...
  Southwestern Traverse County in west central Minnesota...
  Northeastern Day County in northeastern South Dakota...
  Southeastern Marshall County in northeastern South Dakota...
  Southwestern Roberts County in northeastern South Dakota...

* WHEN...Until 915 AM CDT Friday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
  and flood-prone locations is imminent or occurring. Low-water
  crossings are inundated with water and may not be passable. Expect
  many areas of slow moving or standing water.

* ADDITIONAL DETAILS...
  - At 1211 AM CDT, Doppler radar indicated heavy rain due to
    thunderstorms. Flooding is ongoing or expected to begin shortly
    in the warned area. Between 2 and 6 inches of rain have fallen.
  - Additional rainfall amounts up to 1 inch are possible in the
    warned area.
  - Some locations that will experience flooding include...
    Sisseton, Agency Village, Browns Valley, Wilmot, Enemy Swim
    Housing, Beardsley, Peever, Grenville, Barry, Peever Flats
    Housing, Dakota Connection & Casino, Lake Traverse Housing Units,
    Finley Heights Housing, Yankeetown, Traverse Country Park,
    Bonanza Grove, Lake Traverse, Rainbow Island, Rudebusch Corner
    and Big Stone Lake.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4556 9735 4561 9731 4568 9706 4572 9661
      4546 9646 4538 9674 4544 9744


$$

TMT

Flood Warning
National Weather Service Aberdeen SD
955 PM CDT Thu Jul 30 2026

SDC037-311500-
/O.NEW.KABR.FA.W.0018.260731T0255Z-260731T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Day SD-
955 PM CDT Thu Jul 30 2026

...FLOOD WARNING IN EFFECT UNTIL 10 AM CDT FRIDAY...
...REPLACES FLASH FLOOD WARNING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Northwestern Day County in northeastern South Dakota...

* WHEN...Until 1000 AM CDT Friday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
  and flood-prone locations is imminent or occurring. It will take
  several hours for all the water from these storms to work through
  local drainage systems in urban areas.

* ADDITIONAL DETAILS...
  - At 953 PM CDT, emergency management reported heavy rain in the
    warned area due to thunderstorms. Flooding is ongoing. Between 4
    and 8 inches of rain have fallen.
  - Some locations that will experience flooding include...
    Roslyn and Pierpont.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4548 9797 4557 9796 4557 9745 4542 9746
      4543 9783


$$

20

Flood Warning
National Weather Service Aberdeen SD
848 PM CDT Thu Jul 30 2026

SDC107-310745-
/O.NEW.KABR.FA.W.0017.260731T0148Z-260731T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Potter SD-
848 PM CDT Thu Jul 30 2026

...FLOOD WARNING IN EFFECT UNTIL 245 AM CDT FRIDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Central Potter County in north central South Dakota...

* WHEN...Until 245 AM CDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
  and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
  - At 848 PM CDT, Doppler radar indicated heavy rain due to
    thunderstorms. Flooding is ongoing or expected to begin shortly
    in the warned area. Between 2 and 3 inches of rain have fallen.
  - Some locations that will experience flooding include...
    Mainly rural areas of Central Potter County.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4509 10020 4509 10000 4501 10002 4501 10021


$$

20

Flood Warning
National Weather Service Aberdeen SD
658 PM CDT Thu Jul 30 2026

SDC049-107-310600-
/O.NEW.KABR.FA.W.0016.260730T2358Z-260731T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Faulk SD-Potter SD-
658 PM CDT Thu Jul 30 2026

...FLOOD WARNING IN EFFECT UNTIL 1 AM CDT FRIDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...West Central Faulk County in north central South Dakota...
  East Central Potter County in north central South Dakota...

* WHEN...Until 100 AM CDT Friday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
  and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
  - At 657 PM CDT, Doppler radar indicated heavy rain due to
    thunderstorms. Flooding is ongoing or expected to begin shortly
    in the warned area. Between 2 and 3 inches of rain have fallen.
  - Some locations that will experience flooding include...
    Seneca.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4510 9969 4511 9948 4498 9948 4500 9973


$$

20