⚠️ Flash Flood Warning – Benton, IA; Cedar, IA; Iowa, IA; Johnson, IA; Jones, IA; Linn, IA – Sunday, September 20, 2026

Flash Flood Warning issued September 20 at 2:02AM CDT until September 20 at 8:00AM CDT by NWS Quad Cities IA IL

Details

FFWDVN

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for…
Benton County in east central Iowa…
Northern Cedar County in east central Iowa…
Northern Iowa County in east central Iowa…
Northern Johnson County in east central Iowa…
Jones County in east central Iowa…
Linn County in east central Iowa…

* Until 800 AM CDT.

* At 202 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. 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…
Cedar Rapids, Anamosa, Vinton, Marengo, Mechanicsville, Stanwood,
Marion, Hiawatha, Mount Vernon, Robins, Belle Plaine, Center Point,
Lisbon, Fairfax, Solon, Ely, Atkins, Walford, Springville and Palo.

This includes Interstate 380 between mile markers 8 and 36.

Instructions

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.

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