EF1 tornado in Tuscaloosa County, Alabama

National Weather Service meteorologists surveyed damage in Tuscaloosa County, north of Holt, and determined that it was consistent with an EF1 tornado, with maximum winds near 100 mph.

A tornado began on the eastern banks of Lake Tuscaloosa, inside the Northriver Yacht Club community. Trees were snapped and uprooted, with some residences sustaining relatively minor roof damage. The tornado tracked northeastward and crossed the Black Warrior River, uprooting and snapping hundreds of trees along its path. The tornado ended just before the Whiteoak Creek Branch of the Black Warrior River, just before

the Jefferson County line.

An upper-level low over the southwest United States evolved into a negatively-tilted shortwave trough as it moved over the southeastern United States. A warm front steadily moved northward during the morning and afternoon hours on Sunday, April 12. This allowed an unstable air mass to move northward and overspread much of the region. At the same time, very strong wind shear developed over Alabama as the upper trough neared the state.

An initial wave of severe storms affected areas near and north of Interstate 20, involving tornadoes, damaging straight-line winds, and some hail. Through the evening, a second wave of thunderstorms affected the remaining areas of Central Alabama with tornadoes and damaging straight-line winds. Flooding also resulted from training rainfall near and north of Interstate 20. Some roads became impassible or were washed out. This weather event was large in scope and produced severe weather from Oklahoma and Texas, through the southeastern United States, then up the east coast to New York.