Flood Warning in eastern Nebraska & southwest Iowa today — homeowner guide

A Flood Warning is in effect until 1:00 PM CDT today, October 1, for Fremont and Mills in Iowa and Cass, Gage, Johnson, Lancaster, and Otoe in Nebraska after 3–6 inches of rain. Flooding from excessive rainfall is expected, with additional rain possible early this morning. See the latest from the NWS Omaha/Valley warning summary.

At Lincoln Airport, 6.15 inches of rain fell on September 30 — an all‑time daily record for the site, according to the NWS event page on this flooding. Rivers and creeks in the region are responding and some will remain elevated beyond this morning’s areawide warning window.

What does a Flood Warning mean for a homeowner?

A Flood Warning means flooding is occurring or imminent in the warned area — more urgent than a watch, which only signals favorable conditions. For a homeowner, this can mean water over roads, creeks out of banks, saturated yards, and seepage into basements or crawlspaces. Conditions can change quickly near small streams and low spots.

Where are rivers and creeks rising today?

Water concerns are focused on several local waterways:

• Salt Creek at North 27th Street in Lincoln: minor flooding is occurring, and moderate flooding is forecast. At a stage of 26.5 feet, areas of the North Bottoms neighborhood begin to flood.
• Salt Creek near Ashland: moderate flooding is forecast, approaching the flood of record.
• Wahoo Creek at Ithaca: minor flooding is occurring and moderate flooding is forecast.
• Platte River near Louisville: minor flooding is forecast from Thursday afternoon into Friday evening.

Local reporting this morning indicates some major routes reopened after earlier flooding, including Highway 6 near Ashland and Highway 77 near Ceresco (WOWT 6 News). Never drive through water-covered roads.

How could this affect my property today?

Flooding can limit access if water covers low roads or driveways. Saturated soils can push water into basements through cracks or window wells, and low-lying yards may pond. Detached structures like sheds or garages tend to take on water first. Septic systems and wells in flood-prone areas can also be affected by high water and debris.

Why do impacts vary so much from one address to the next?

Street layout, storm drains, culverts, and tree cover can redirect runoff by a block or two. Natural features matter as well: properties closer to creeks, floodplains, or low swales tend to feel effects sooner. River thresholds illustrate this — when Salt Creek at North 27th in Lincoln reaches 26.5 feet, parts of the North Bottoms begin to flood, while higher ground nearby may remain accessible.

What should I do this morning and after water recedes?

- If it is safe to do so, check the lowest points of your home (sump pump, basement stairs, window wells) and move valuables up and off floors. - Avoid flooded roads — turn around rather than driving through water. - Keep children and pets away from floodwater; it can hide hazards and carry contaminants. - After water recedes, ventilate and dry wet areas promptly to reduce mold growth. Photograph waterlines and damage before cleanup. - Review steps from the National Weather Service Flood Safety page and preparedness guidance at Ready.gov Floods.

How should I document damage and think about insurance?

Photograph or video any water entry, debris lines, and damaged materials before moving items or starting repairs. Keep a simple log of dates, times, and actions, and save receipts for pumping, drying, or temporary repairs. In general, standard homeowners policies exclude overland flooding from rivers, creeks, or surface runoff; separate flood insurance is usually required for that. Coverage varies by policy — review your documents or speak with a licensed insurance professional if you have questions.

Frequently asked questions

How long does today’s Flood Warning last, and where is it in effect?

It is in effect until 1:00 PM CDT today, October 1. It covers Fremont and Mills counties in Iowa and Cass, Gage, Johnson, Lancaster, and Otoe counties in Nebraska.

What’s happening on Salt Creek in Lincoln and near Ashland?

At North 27th Street in Lincoln, minor flooding is occurring and moderate flooding is forecast; at 26.5 feet, parts of the North Bottoms begin to flood. Near Ashland, moderate flooding is forecast and is approaching the flood of record.

What about the Platte River near Louisville?

Minor flooding is forecast from Thursday afternoon into Friday evening. Even “minor” flooding can affect low-lying access points, parks, or roads close to the river.

Does homeowners insurance cover river or creek flooding?

Typically, overland flooding from rivers, creeks, or surface runoff is not covered by standard homeowners policies; separate flood insurance is generally needed. Coverage varies by policy and insurer — review your policy documents or consult a licensed insurance professional.

What should I document if water reached my property?

Photograph waterlines on walls and furniture, any damaged building materials, and affected belongings before moving or disposing of them. Keep a dated list of items, save receipts for emergency work, and note when water arrived and receded.

See what this means for your property

Enter your address in Hazard Clarity to explore your home’s flood exposure and nearby waterways so you can plan next steps with better context.

We’re continuing to monitor verified public updates tied to this event and will revise the story if conditions materially change.

— The Hazard Clarity Team