As a storm system rapidly organizes over the Gulf of Mexico, severe thunderstorms, torrential downpours and even a few tornadoes will take aim on Florida.
Florida has seen very little severe weather this year, but that will change through tonight.
The greatest potential for thunderstorms with damaging wind gusts, hail and frequent lightning strikes will focus over the Florida Peninsula.
A few of the strongest thunderstorms could also produce a tornado.
Cities at risk will include Tampa to Naples to Miami and Orlando.
Along with the storms will be a risk of blinding downpours and urban flooding problems.
Not only has Florida avoided severe weather this winter and spring, it has not seen much rain.
Downpours produced by the storms will bring much-needed rain to a very dry state.
There is the potential for several inches of rain at the local level with this event.
Florida and its neighbors to the north in Georgia and South Carolina have been in the throws of severe drought.
Streams, lakes and rivers have been drying up, raising concerns for summer water supplies. The dry conditions have also made for nasty, long-lasting wildfires.
After bringing both beneficial rain and dangerous thunderstorms to the southern Atlantic region, the storm system will swing into the Northeast with windswept heavy rain and even heavy wet snow over the mountains Sunday into Monday.
The storm will drag unusually chilly air into the South for a few days next week. Record lows could be challenged in some locations.
The rain will come at a time of the year, when, relatively speaking, little rain usually occurs. For example, Orlando receives, on average about 2.70 inches of rain during April. In July, rainfall averages nearly three times that amount.
April is a time of the year in Florida when the sun is not quite strong enough to drive air mass thunderstorms. The tropics have not yet become active and winter storms have retreated to the north.
It would take a rather unusual and strong weather event to produce rainfall of several inches in one clip. However, this appears to be one of those unusual situations.
Story updated by Andy Mussoline, Meteorologist
Several tornadoes touched down from Oklahoma to Iowa, including near Wichita, Kan., and Oklahoma City, on Sunday.
Rising temperatures and humidity across the mid-Atlantic will have it feeling like the end of June.
Heavy rain returning to the northern Plains will generate a renewed flood threat for the Red River.
A tornado touched down at about 2:53 p.m. CDT Monday in Moore, between Norman and Oklahoma City.
More severe weather is on the way for the southern Plains on Tuesday as well as parts of the Midwest and the Northeast.
Reports from Monday's severe weather.
Texas County, OK (1937)
Severe dust storm called "Black Blizzard" visibility near zero for 10 minutes.
Ohio Valley (1860)
Tornado swarm in Ohio Valley hit Louisville, KY, Cincinnati, OH, Chilicothe, OH, and Marietta, OH. Damage totalled $1 million; 4 people killed in Cincinnati.
Orlando, Fl (2005)
High temperature finally reached 90 degrees. This gets a record for the latest occurrence of the first degrees day of the year.