Flood Warning Issued for Codington, Deuel and Hamlin Counties in South Dakota
This alert is no longer in effect.
NOAA issued it on June 21, 2026, 2 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flood Warning is in effect until 8 AM CDT Thursday for Codington, Deuel and Hamlin counties due to excessive rainfall and ongoing flooding.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Northeast South Dakota
- Issued
- June 21, 2026
- Issuing authority
- NWS Aberdeen SD
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 2 months ago; use the issuing agency's live warning service for current conditions in Northeast South Dakota.
Alert Details
A Flood Warning has been issued by the National Weather Service Aberdeen SD. The alert is effective from June 3 at 10:24 PM CDT until June 4 at 8:00 AM CDT.
Affected Areas
The warning covers Codington, Deuel and Hamlin counties in northeast South Dakota. Specific locations that will experience flooding include Clear Lake, Estelline, Castlewood, Lake Poinsett, Hayti, Lake Norden, Gary, Toronto, Astoria, Brandt, Claremont Colony, Altamont, Bemis, Poinsett Colony, Dempster, Stone Bridge, Moritz, Lake Cochrane Rec Area and Lake Albert.
What You Should Do
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.
Expected Conditions
Flooding caused by excessive rainfall is expected. Between 2 and 5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are possible. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring.
Timeline
The Flood Warning is in effect until 8:00 AM CDT Thursday.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,123 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to June 21, 2026.
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