Alert archive / Iowa / River Flood Warnings in 2026
River Flood Warning 86, NWS Quad Cities, IA
NWS Quad Cities, IA issued this river flood warning at Sep 30, 2026, 9:28 PM CDT for Johnson County, Louisa County, Washington County, Iowa. It took effect at Oct 1, 2026, 12:15 PM CDT. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Sep 30, 2026, 9:28 PM CDT (02:28 UTC)
- In effect from
- Oct 1, 2026, 12:15 PM CDT
- Expired
- Oct 5, 2026, 2:00 PM CDT
- In force
- 4 days
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Johnson County, IA, Louisa County, IA, Washington County, IA
The radar
The Quad Cities radar (KDVN), 82 km from the middle of the area, began a volume at 02:27 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Iowa River near Lone Tree (Tri-County Bridge) (LNTI4). The gauge peaked at 15.88 ft at Oct 2, 2026, 2:00 AM CDT.
- Action stage
- 14 ft
- Minor stage
- 16 ft
- Moderate stage
- 18.5 ft
- Major stage
- 22 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05455700, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 30, 9:19 PM CDT | River Flood Warning | DVN | Louisa, Muscatine | 22 days |
| Sep 30, 9:29 PM CDT | River Flood Warning | DVN | Louisa | 22 days |
| Sep 30, 9:31 PM CDT | River Flood Warning | DVN | Louisa | 22 days |
| Sep 30, 9:33 PM CDT | River Flood Watch | DVN | Louisa | 64 hr |
Nearby
River Flood Warnings in Iowa, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.