NOTE: As the storms have died down for now, the live blog has been discontinued. There will still be some lingering patches of very heavy rain and thunder, but the worst of the weather is over for the night. See below for reports.
New storms are firing across parts of the Midwest Tuesday afternoon and moving east into parts of Pennsylvania, bringing the threat for flash flooding, damaging winds and large hail.
Some of the cities and towns most at risk include Minot and Fargo, N.D.; Sioux Falls, S.D.; Minneapolis, Minn.; La Crosse and Milwaukee, Wis.; Des Moines, Iowa; Chicago, Ill.; Fort Wayne, Ind.; Detroit, Mich.; Pittsburgh, Pa.
The greatest impacts will likely occur in a swath from Iowa and southern Minnesota to Illinois, Indiana, Ohio, parts of southern Wisconsin and Lower Michigan. A line of severe storms from Lake Erie have barreled through parts of northern Ohio, western Pennsylvania and are now headed towards Baltimore, Md. and Washington, D.C. Some of the storms can bring wind gusts to hurricane force. Hail as big as golf balls or baseballs and a few tornadoes are also possible.
For the full story, read "Severe Storms Threaten 42 Million in the Midwest."
10:00 p.m. CDT Tuesday: A 61mph wind gust was just measured to the east of downtown Baltimore near Martin Street.
9:19 p.m. CDT Tuesday: Storms with damaging wind potential blasting toward Baltimore and DC.
8:02 p.m. CDT Tuesday: A line of severe storms that formed earlier in the evening over Lake Erie has tracked over 300 miles through parts of northern Ohio, western Pa., and are now headed for Baltimore, Md., and Washington D.C.
6:38 p.m. CDT Tuesday: Temperatures dropped 10 degrees, from 80 F to 70 F, in approximately 40 minutes as a severe thunderstorm moved across Johnstown, Pa. Wind gusts with the storm hit 48 mph.
5:52 p.m. CDT Tuesday: Flight delays out of Chicago's O'Hare International Airport have reached over 600 for arrivals and just under 600 for departures due to thunderstorms, according to FlightStats. Detroit Metropolitan Wayne County Airport is listing significant delays, both arriving and departing, from 30 to 40 minutes as a result of the weather.
5:25 p.m. CDT Tuesday: Hail, just under an inch in diameter, was reported by a trained spotter north of Three Rivers, Ohio, as the region faces severe thunderstorms. Severe Weather Center
4:17 p.m. CDT Tuesday: A 60 mph wind gust was reported by an emergency manager in Delavan, Ill.
3:48 p.m. CDT Tuesday: Flooding has been reported outside of Ipava, Ill., as several inches of water builds on Route 136.
3:00 p.m. CDT Tuesday: Law enforcement reports many trees down around Gavers, Ohio, from strong thunderstorm winds.
1:48 p.m. CDT Tuesday: Heavy rain moves over Flint, Mich., as storms prepare to ramp up again for the evening hours:
1:00 p.m. CDT Tuesday: A trained spotter outside of Watertown, Wis., reports 1.63 inches of rain so far from this system.
12:30 p.m. CDT Tuesday: Local flash flooding risks increase in Iowa, Wisconsin and Illinois as heavy rains hit the Mississippi and other rivers.
11:40 a.m. CDT Tuesday: Chicago's O'Hare International Airport is listing excessive delays around 40 minutes due to thunderstorms, according to FlightStats. There are 223 departing delays and 109 arrivals.
11:11 a.m. CDT Tuesday: "The storms are over Lake Michigan and pushing into lower Michigan," said Accuweather Meteorologist Paul Walker. "The biggest threat to watch out for will be damaging wind gusts."
10:14 a.m. CDT Tuesday: A 50-mph thunderstorm wind gust was reported by a trained spotter in Warrenville, Ill.
10:00 a.m. CDT Tuesday: A co-op observer reported that as of 9 a.m. CDT, 5.34 inches of rain has fallen in the last 24 hours just outside of Parkersburg, Iowa.
8:20 a.m. CDT Tuesday: Significant delays being reported at Chicago O'Hare International Airport due to thunderstorms, the FAA reports.
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