⚠️ Flash Flood Warning – Lyman, SD – Thursday, July 30, 2026

Flash Flood Warning issued July 30 at 4:09PM CDT until July 30 at 10:15PM CDT by NWS Aberdeen SD

Details

FFWABR

The National Weather Service in Aberdeen has issued a

* Flash Flood Warning for…
East Central Lyman County in central South Dakota…

* Until 1015 PM CDT Thursday.

* At 409 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.

HAZARD…Flash flooding caused by thunderstorms.

SOURCE…Radar indicated.

IMPACT…Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

* Some locations that will experience flash flooding include…
Oacoma, Dude Ranch and Lake Francis Case.

Instructions

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.