By Jordan Root, Meteorologist
September 10,2014; 9:25PM,EDT
Torrential rain and locally severe storms will continue to push eastward into Wednesday night with areas from the Great Lakes to the Ohio and middle Mississippi valleys in the path.
A rather potent area of low pressure and a cold front will continue their charge, setting the stage for dangerous weather in major cities as well as rural areas of the Midwest.
The rain and storms have the potential to cause property damage. Motorists may be faced with travel delays, including road closures and ground stops at airports.
Folks from Cincinnati to Indianapolis and St. Louis will be at risk for bursts of flooding rain and locally severe thunderstorms into Wednesday evening.
The risk of flash flooding and gusty storms will focus from Toronto to Cincinnati, Cleveland and Columbus, Ohio, Wednesday evening and overnight.
"Ample heat and moisture combined with early fall dynamics will set the stage for damaging straight-line winds, large hail and even an isolated tornado or two," said AccuWeather Lead Storm Warning Meteorologist Rich Putnam.
Downed trees and power lines could become a common sight later in the day as these storms move into areas that had earlier had sunshine and warmth. Some people could be without power for an extended period of time.
According to AccuWeather Meteorologist Brian Lada, "Making sure that your cell phone is charged, stocking up on extra batteries for flashlights and buying gasoline for a generator are a few ways to prepare for a power outage."
Avoid walking, stopping or parking under trees as the storms approach. Waterlogged large tree limbs could crash down with no notice.
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Flash flooding will be a more general threat for the region with the storm setup.
The rain will fall at such a rapid pace as to overwhelm storm drains and catch basins. Streets may to turn into raging rivers with little notice.
The same storm system clobbered portions of Iowa and northern Missouri on Tuesday with tremendous rainfall.
Rainfall rates exceeded an inch per hour in some locations which caused problems on major highways, including U.S. Route 71. Kirksville, Missouri, recorded over 9 inches of rain Tuesday evening into early Wednesday.
The downpours and storms rolled into Chicago Wednesday morning and delivered a quick 1 to 2 inches of rain and wind gusts as high as 40 mph.
AccuWeather.com MinuteCast™ has the minute-by-minute forecast for your exact location, detailing when thunderstorms will hit. Type your city name, select MinuteCast™, and input your street address. On mobile, you can also use your GPS location.
This storm will possess characteristics that are more typically seen in the middle of autumn.
"This is the strongest cold front we've seen thus far this summer," said Putnam. That cold air will clash with a contrasting warm and humid air mass, which will provide a ripe setup for severe thunderstorms.
The threat of strong thunderstorms will continue into Thursday as well as the cold front marches east. While the front will lose some of its strength upon reaching the Appalachians and Atlantic coast, New York City, Philadelphia and Washington, D.C., will still be at risk for torrential downpours and gusty winds by Thursday evening.
AccuWeather Senior Meteorologist Alex Sosnowski contributed content to this story.
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