Tornado Warning Update as Twisters Forecast to Tear Through Tennessee, Alabama

The U.S. is set to experience numerous weather events today, with the risk of a severe weather warning and excessive rainfall in the South, high wind watches in the Great Lakes area to the northern mid-Atlantic, and wind and blowing dust advisories in the West.

The National Weather Service (NWS) has forecast a tornado outbreak later today in the mid-South, risk of excessive rainfall in areas of the Tennessee Valley, as well as unsettled weather and blowing dust in the West and Desert Southwest.

The risk of more severe weather comes just a week after the southern states faced several tornadoes that wreaked havoc and caused extensive damage.

High Risk of Severe Weather Warning in the South

A tornado outbreak is expected to happen later today in the mid-South, the NWS has warned.

The NWS said today is expected to be "an active and dangerous day of weather" that will unfold across the mid-south. The Storm Prediction Center has issued a High Risk of severe weather warning.

The tornado outbreak is being driven by the strengthening of the low pressure ahead of a sharp and intense upper-level trough that is tracking into the middle Mississippi Valley and Ohio Valley this evening.

The South is expected to face powerful thunderstorms this afternoon that will track into the Ohio and Tennessee valleys tonight, and these thunderstorms may contain hazards such as violent long-track tornadoes, damaging wind gusts, and large hail.

Additionally, hydrologic hazards are a concern from northern Alabama and Mississippi to the Tennessee Valley and the southern Appalachians. These areas may experience torrential rainfall that, combined with overly-saturated soil, could result in flash flooding.

A Slight Risk of excessive rainfall is in place, as is a Moderate Risk over northern Alabama, northwest Georgia, and southeast Tennessee. The NWS says that residents in these areas should have a plan of action in place.

High Wind Watches in the Great Lakes to the Northern Mid-Atlantic

High Wind Watches are in place for areas of the lower Great Lakes to the northern Mid-Atlantic from Thursday night into Friday morning. The winds may result in downed trees and power lines.

The storm system that was responsible for Thursday's tornado outbreak will head for the Great Lakes tonight. Just after midnight, the cold front is expected to clear the Mid-South and Ohio Valley, ending the threat for the regions as high pressure builds in from the West in the early hours of Friday.

The cold front will then reach the East Coast by Friday with a Marginal Risk of severe weather in place in the southeast, whereas the northeast is set to experience a damp and gusty Friday. The weather will be drier by Friday evening and will last through Saturday.

Thunderstorm Damage Texas
An American flag was placed in the rubble of a damaged business, Bertram Blend and Boutique, after a severe thunderstorm on March 23, 2021, in Bertram, Texas. The mid-south is expected to experience a tornado outbreak today. Tamir Kalifa/Getty

Wind and Blowing Dust Advisories in the West

In the west of the U.S., an upper-level disturbance due to dig into the Southwest today will trigger scattered showers and areas of mountain snow from the Northwest to the Four Corners region. The NWS also says that the upper trough is partly responsible for conditions that are favorable for blowing dust in parts of the Desert Southwest.

There are Wind Advisories and Blowing Dust Advisories in place for parts of far southern California and southern Arizona for Thursday afternoon.

The rain and mountain snow showers will decrease by Friday but snow may continue in the central and southern Rockies. The San Juan Mountains are expected to see the heaviest snowfall totals: one to two feet of snow is possible. The higher ridgelines of the Intermountain West could also see up to a foot of snow over the next couple of days.