Disclaimer: This article covers a developing or serious situation. Information can change quickly. Multiple verification from official or authoritative sources is recommended before taking any action based on this or any single report. Readers are responsible for cross-checking facts and following local authorities’ guidance.
For the third time this month, a severe weather outbreak is bearing down on the South, Midwest, and East—this one expected to pack widespread damaging winds and a few tornadoes from Sunday through Monday, on the warm side of the same system driving an upper Midwest blizzard. The Storm Prediction Center and The Weather Channel are warning that this round will differ from the earlier March outbreaks: winds, not strong tornadoes, will drive the threat. Readers should verify forecasts with the National Weather Service and have multiple ways to receive warnings.
This Outbreak Is a Widespread Damaging-Wind Event With Some Tornado Threat, Not Primarily a Tornado Outbreak
The Storm Prediction Center has spelled it out: “A widespread damaging wind event with some tornado threat is likely late Sunday afternoon through Sunday night from northeast Texas to southwest Lower Michigan,” with severe weather extending into Monday across much of the East. According to The Weather Channel and Yahoo, this is the third such outbreak in March 2026, following events from March 5–8 and March 10–12. The latest round will unfold on the warm side of Winter Storm Iona, which is bringing blizzard conditions to the upper Midwest. Arcfield Weather and WeatherNation have echoed the threat of damaging winds and tornadoes for Sunday and Monday.
Sunday: Squall Line, 75+ mph Winds, and Embedded Tornadoes From the Midwest to the South
By Sunday afternoon, severe thunderstorms are expected to become numerous from parts of the Midwest to the South, taking the form of a squall line. The Weather Channel reports that damaging winds over 75 mph are expected within this line, with a locally higher threat from Evansville, Indiana, to just west of Memphis, Tennessee. Some embedded tornadoes are increasingly likely, and there is a chance for a strong tornado of EF2 or greater. Sunday night, the squall line is forecast to surge east across the Ohio Valley, lower Mississippi Valley, and Tennessee Valley. The National Weather Service and Storm Prediction Center outlooks have highlighted the Mississippi Valley, Tennessee Valley, and Ohio Valley for Sunday, with the greatest tornado and wind threats from Arkansas-Louisiana-Mississippi into the Lower Ohio Valley by Sunday evening.
Monday: Damaging Winds Spread Across Much of the East
As the cold front from the intense Great Lakes low moves east, thunderstorms with damaging winds are likely to be widespread Monday across much of the East, from north Florida to the Northeast. NOAA’s Storm Prediction Center has highlighted the area with the highest chance of severe weather from parts of the mid-Atlantic to the Carolinas. The damaging-wind threat could extend through the Appalachians and the entire Northeast from Monday morning through Monday night, and may accompany the squall line even where it appears as heavy rain without lightning. A few tornadoes are possible Monday, either embedded in the line or in discrete rotating storms ahead of it. Power outages and tree damage could be widespread in the East Monday and Monday night, according to The Weather Channel.
What This Actually Means
This is a multiday, multi-region event. Anyone from Texas to the East Coast in the warm sector should treat severe thunderstorm warnings as seriously as tornado warnings: winds over 60 mph can down trees onto vehicles and homes. Have multiple ways to receive National Weather Service watches and warnings—smartphone alerts and NOAA weather radio—and know where to seek shelter. Prepare for possible power outages, especially where cold air follows the front. Do not rely on this or any single report; check official NWS and local emergency sources before making decisions. The Weather Channel advises having multiple ways to receive NWS watches and warnings (including smartphone alerts and NOAA weather radio), knowing where to seek shelter, and moving to shelter immediately when a warning is issued. Manufactured-home residents should use a community storm shelter or a nearby substantial building when a severe thunderstorm or tornado warning is in effect.
How Often Does March See Back-to-Back Severe Outbreaks?
March is a volatile month across the central and eastern United States. Meteorologists have linked recent outbreaks to strong upper-level jet streams, temperature contrasts, and the warm side of powerful low-pressure systems—the same type of setup driving the Sunday–Monday event. Warm Gulf air often clashes with cold Canadian air, and the jet stream can support repeated storm systems. The early March 2026 outbreak (March 9–12) produced 47 confirmed tornadoes and 634 severe reports; March 10 alone had 257 reports, the most in a single day since July 2025. Historical precedents include the “Storm of the Century” (March 12–14, 1993), the March 13–15, 2024 tornado outbreak (34 tornadoes, including EF3s), and the March 13–16, 2025 outbreak that set records for March. So multiple severe outbreaks in one month are not unusual; what matters is taking each threat seriously and staying tuned to official forecasts.
What Is a Squall Line and Why Does It Matter Here?
A squall line is a long line of severe thunderstorms that can travel hundreds of miles. According to The Weather Channel and the Storm Prediction Center, this weekend’s threat will take that form: a line of storms with damaging winds over 75 mph and embedded tornadoes, rather than isolated supercells. Squall lines often produce more widespread wind damage than tornadoes; trees and power lines can come down across a broad swath. That is why forecasters are emphasizing wind preparation and power-outage readiness, especially before cold air arrives behind the front.
Sources
The Weather Channel via Yahoo News, Weather.com, Arcfield Weather, WeatherNation