The end of March has been somewhat active in terms of severe weather, and more severe weather is expected to begin April. Severe storms from the Ohio Valley though portions of the Gulf Coast is expected Tuesday into Tuesday night.
This threat comes as a potential Colorado low develops on the leeward side of the Rocky Mountains and tracks toward the Great Lakes. Meanwhile to the south, its associated cold front will spark the development of rain and thunderstorms while warmth and humidity streams to as far north as the warmth front, which will extend into portions of the Great Lakes region.
On Monday, a few strong to severe storms are possible as the large-scale storm system will be developing. Scattered showers and thunderstorms associated with a disturbance will affect in portions of the Ohio Valley and Mid-Atlantic, however.
It’s not until Tuesday when the severe weather is forecast. Showers and storms will develop early in the morning ahead of the warm front from the Ohio Valley, southern Great Lakes region, and Northeast while storms begin to form along the cold front in the Central Plains. Then in the afternoon. the storms will become more widespread, stretching from southern Michigan through eastern Texas. This line will continue to intensify through the evening hours and the first half of Tuesday night while tracking eastward into eastern Ohio Valley, Tennessee Valley, and central Gulf Coast. These storms will pose all the typical threats: large hail, damaging winds, and tornadoes. A tornado outbreak is now anticipated, and the best risk for tornadoes will be in the western Ohio Valley. Damaging winds will also be a major threat.
Then on Wednesday, a few spotty strong to severe storms are possible. Otherwise, a line of rain and thunderstorms will impact much of the US East Coast from New England through northern Florida. Less than one inch of rainfall is expected for most locations due to these storms. Pockets of one to two inches is possible in the Ohio Valley.