The risk of thunderstorms with localized flash flooding and hail continues tonight in the Ohio Valley, but expands as well.
As Meteorologist Bill Deger said earlier Thursday, "Record-challenging warmth continuing across the eastern two-thirds of the country will combine with moisture from the Gulf of Mexico to generate scattered thunderstorms."
A reported tornado touched down, damaging trees, power lines and a shed 2 miles northeast of Dexter, Mi.
Clusters of these storms, could turn severe, producing isolated large hail and frequent lightning strikes. However, the major threat will continue to be flash flooding. In addition, in portions of the Ohio and Tennessee valleys, where lines of storm organize, there is also the risk of damaging wind gusts.
The risk of locally severe thunderstorms tonight stretches from the northern parts of Arkansas, Mississippi, Alabama and Georgia, northward to western New York and southern Ontario.
Photo from Flickr user, thehutch. Watch for towering thunderstorm clouds with an abundance of warm and humid air.
A wedge of cool, stable air will protect part of the coastal Northeast from the nastiest storms, but some downpours can survive the trip to the coast in a few instances.
"Such a setup is more typical for the summer months but just goes to show the unusual weather pattern gripping much of the nation here in mid-March," Deger added.
Similar to the summer, the storms will be rather hit-or-miss, but if you get underneath one of the storms, rainfall can go wild for a time and can be accompanied by hail and strong winds.
The storms have had a history of producing large hail to the size of golf balls and four inches of rain in a few hours.
Thunderstorms in Ohio resulted in flooding in Licking and Hocking counties in Ohio, forcing at least two water rescues, this morning. Flash flooding occurred during the midday in portions of West Virginia.
As of 3:00 p.m. this afternoon, thunderstorms with hail have occurred in Ohio, Indiana, Kentucky, Tennessee, Michigan, West Virgina and Georgia.
Additional states will likely join in this evening.
The potential for locally drenching and severe storms will persist across portions of the central and eastern states for at least the next few days as warmth, moisture and upper-level disturbances combine forces.
After a period of above-average temperatures across the Northeast for much of this week, a return to more fall-like conditions will be in store this weekend.
Another round of rain is expected to move through the Carolinas on Saturday, which may lead to rises on some small streams and creeks.
A strengthening storm system will bring the threat for flooding, mudslides and severe thunderstorms to areas from Italy into the Balkans later Friday into the weekend.
Winter will kick off with mild weather in the Northeast and mid-Atlantic as an intensifying El Nino influences the weather pattern across the country.
A "blob" of abnormally cold water in the North Atlantic, located near Greenland, has the potential to put enough drag on the ocean current to impact weather conditions in the years to come.
“It was by far the most intimidating natural disaster I have ever chased,” Storm Chaser and Extreme Meteorologist Reed Timmer said of the historic flooding in South Carolina.
Boston, MA (1703)
"The snow is now 3 or 4 inches deep and a very cold northwest wind"..."much ice". Samuel Sewall, Diary, Mass. Hist. Sec. Coll., 46, 89.
Key West, FL (1846)
(Oct. 10 & 11) Havana-Key West-Atlantic Coast hurricane. In Havana, pressure was 27.06"/916.4 mb. Key West almost destroyed. Fort Taylor, "mass of ruins," 5' of water in city.
New England (1925)
Widespread early snow in New England -- 24" northern VT and NH -- highways blocked on weekend-- football played in deep snow.