Jesup, IA Warnings, Watches and Advisories
NWS Active Alerts for IA - Map View
Flood Watch
Mitchell; Howard; Winneshiek; Allamakee; Dodge; Olmsted; Winona; Mower; Fillmore; Houston; La Crosse; Monroe; Vernon; Crawford; Richland; Grant
Flood Watch issued September 18 at 5:48AM CDT until September 19 at 1:00PM CDT by NWS La Crosse WI
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...In northeast Iowa, Allamakee, Howard, Mitchell and Winneshiek Counties. In southeast Minnesota, Dodge, Fillmore, Houston, Mower, Olmsted and Winona Counties. In Wisconsin, Crawford, Grant, La Crosse, Monroe, Richland and Vernon Counties. * WHEN...From this evening through Saturday afternoon. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Widespread rain is expected to develop across the region today and continue into the day Saturday. Some locations may see multiple inches of rainfall, particularly along and south of Interstate 90 and north of Highway 18. - http://www.weather.gov/safety/flood
Severe
Possible
Future
September 18th, 2026 05:48:00 am CDT
September 18th, 2026 05:48:00 am CDT
September 18th, 2026 05:00:00 pm CDT
Flood Warning
Polk, IA; Warren, IA
Flood Warning issued September 18 at 5:28AM CDT until September 19 at 5:00PM CDT by NWS Des Moines IA
...The Flood Warning continues for the following rivers in Iowa... North River near Norwalk Hwy R57 affecting Warren and Polk Counties. * WHAT...Minor flooding is forecast. * WHERE...North River near Norwalk Hwy R57, or from the Madison-Warren County line to the Des Moines River. * WHEN...Until Saturday afternoon. * IMPACTS...At 22.0 feet, Water is over Iowa 28 immediately south of Norwalk and threatens several rural gravel roads. * ADDITIONAL DETAILS... - At 5:15 AM CDT Friday the stage was 21.7 feet, and rising. - Forecast...The river is expected to rise above flood stage this morning to a crest of 22.2 feet this afternoon. It will then fall below flood stage late tomorrow morning. - Flood stage is 22.0 feet.
Severe
Observed
Immediate
September 18th, 2026 05:28:00 am CDT
September 18th, 2026 05:28:00 am CDT
September 18th, 2026 05:30:00 pm CDT
Flood Watch
Dubuque; Jackson; Jo Daviess; Stephenson; Carroll
Flood Watch issued September 18 at 1:23AM CDT until September 19 at 7:00PM CDT by NWS Quad Cities IA IL
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Illinois, including the following counties, Carroll, Jo Daviess and Stephenson and Iowa, including the following counties, Dubuque and Jackson. * WHEN...From late tonight through Saturday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Widespread showers and storms are expected to develop late tonight and last into Saturday. These storms will be capable of rainfall rates between 1-2 inches per hour. Rainfall totals of 1-3 inches are likely through Saturday evening with the potential for localized areas of 3+ inches.
Severe
Possible
Future
September 18th, 2026 01:23:00 am CDT
September 18th, 2026 01:23:00 am CDT
September 19th, 2026 01:30:00 am CDT
SAFETY and DATA MESSAGE
When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Jesup.
Use the Radar Maps link provided to understand the trajectory of a storm.
For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.