Fox News Weather Center

Heavy rain to increase flood threat from Kansas City to Indianapolis this weekend

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A dangerous and potentially life-threatening flooding situation will unfold from parts of Kansas and Nebraska to Ohio this weekend.

Multiple rounds of heavy rain will drench the mid-Mississippi and Ohio valleys during the Fourth of July weekend.

The heaviest rain is likely to fall from northeastern Kansas and southeastern Nebraska to central Indiana. Rain in this area will be measured in inches.

"Heavy rain and thunderstorms will bring flash flooding to northeastern Kansas, southeastern Nebraska, southern Iowa and northern and central Missouri into Saturday night," AccuWeather Meteorologist Steve Travis said.

"The threat for flooding will shift eastward from northern and central Missouri to central Indiana during Saturday night and Sunday and across the Ohio Valley on the Fourth of July," Travis said.

Rainfall amounts of 2 to 4 inches are possible from Topeka, Kansas, to Kansas City; Springfield, Illinois; and Indianapolis. Isolated amounts up to 6 inches or more are possible.

Flooding will be more localized across Omaha, Nebraska; St. Louis; Louisville; and Cincinnati.

Travel delays are expected on the road and in the air for anyone traveling for the Fourth of July holiday.

Those traveling at highway speeds are urged to slow down in any heavy downpour to reduce the risk of hydroplaning.

Should any roads get covered with water, turn around and find an alternate route. It only takes a small amount of rushing water to wash away vehicles.

Flooding will progress from urban and poor drainage areas to progressively larger streams this weekend and some of the major waterways, including the Ohio and Mississippi rivers, next week.

Those living in low-lying and flood-prone areas should have an emergency preparedness kit on hand in the event of an evacuation.

Conditions are expected to slowly improve early next week as the worst of the rain shifts to the Tennessee Valley and mid-Atlantic. Evening fireworks shows could stay as planned across the Plains and Missouri Valley but may be delayed or cancelled across portions of the Ohio Valley as showers and thunderstorms may stick around into the evening hours.

The risk for flooding will spread eastward early next week into West Virginia and the mid-Atlantic states.