Flood Warning Issued for Brookings and Hamlin Counties, SD
This alert is no longer in effect.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.
NWS Sioux Falls has issued a Flood Warning for the Big Sioux River near Estelline affecting Brookings and Hamlin Counties in South Dakota.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Brookings and Hamlin Counties, South Dakota
- Issued
- June 21, 2026
- Issuing authority
- NWS Sioux Falls 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 Brookings and Hamlin Counties, South Dakota.
Alert Details
A Flood Warning has been issued by the National Weather Service Sioux Falls SD. The alert is effective from June 4, 2026 at 12:20 PM CDT.
Affected Areas
The warning covers Brookings County and Hamlin County in South Dakota, specifically the Big Sioux River near Estelline.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Minor flooding is occurring on the Big Sioux River near Estelline. At 12:00 PM CDT on June 4, the river stage was 1644.1 feet. Flood stage is 1644.0 feet. At 1644.0 feet, significant flooding of crop and pasture land begins.
Timeline
The Flood Warning is in effect from this afternoon (June 4, 2026 at 12:20 PM CDT) until further notice. The next statement will be issued by Friday afternoon.
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 (832 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to June 21, 2026.
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