03/14/2025
Posted Thursday Night 3/13/2025: *** LATEST UPDATE ON THE MULTI-DAY SEVERE WEATHER OUTBREAK THAT IS EXPECTED FROM LATE FRIDAY AFTERNOON RIGHT THROUGH FRIDAY NIGHT, SATURDAY & SATURDAY NIGHT; A PARTICULARLY HIGH-END SEVERE WEATHER OUTBREAK LOOKS LIKELY SATURDAY AFTERNOON & SATURDAY NIGHT FROM LOUISIANA, MISSISSIPPI, ALABAMA & GEORGIA NORTHWARD INTO THE LOWER OHIO VALLEY ***
A very strong upper level trough of low pressure is expected to track from the Rocky Mountains through the Plains States. At the same time this is occurring, a strong jet stream will move southeastward leading to the formation of a very strong surface low pressure system. This strong low pressure system is expected to track from the central Plains states into the upper Midwestern United States by Saturday. Out ahead of this storm system, a warm front will push northward leading to very humid Gulf air to move northward into the lower Mississippi Valley, the Tennessee Valley, and the lower Ohio Valley. This humid air with dew point temperatures of 65 to 70 Degrees will combine with plenty of unstable air to produce widespread severe weather. Additionally, very strong low-level wind shear will help to cause these storms to rotate leading to a significant tornado risk.
- FOR FRIDAY AFTERNOON & FRIDAY NIGHT – Severe thunderstorms are likely to begin developing during the mid and late afternoon hours of Friday and then continue through all of Friday night.
The area of most concern during late Friday afternoon into Friday night will be across the middle Mississippi Valley eastward into the lower Ohio Valley and the Tennessee Valleys. This includes St. Louis, Memphis, Nashville and Louisville. Widespread damaging winds with gusts of over 75 mph and tornadoes will be a definite threat. The overnight severe thunderstorm and tornado threat is a definite concern since many will be sleeping as severe weather moves in. This means you should have multiple ways of receiving severe thunderstorm and tornado warnings.
Another area of concern will be during the well after midnight hours of Friday night into the early morning hours of Saturday across the eastern half of Mississippi and across western, central and northern Alabama where severe thunderstorms may be a threat. Damaging winds, tornadoes, some of which will be strong, and hail will all be a significant threat. This is very concerning since this will be occurring during the late night hours of Friday night when many will be sleeping.
- SATURDAY CONTINUES TO LOOK VERY BAD IN TERMS OF A PARTICULARLY HIGH-END SEVERE WEATHER OUTBREAK: A particularly high-end severe weather outbreak continues to look very likely on Saturday afternoon into Saturday night that will be concentrated across eastern Louisiana, all of Mississippi, all of Alabama, western and northern Georgia and the western and central Florida Panhandle.
Morning strong to severe thunderstorms may linger across northern parts of Mississippi and Alabama into Tennessee, but the atmosphere should recover behind this severe weather. As this recovery occurs, supercell severe thunderstorms are expected to develop by Saturday afternoon across the Deep South starting across eastern Louisiana and much of Mississippi during the early afternoon hours and spreading into Alabama by the mid and late afternoon hours of Saturday. This severe weather is then expected to spread into western and northern Georgia and the Florida Panhandle by Saturday evening and continue into Saturday night. These storms should not be messed with at all as they will produce strong to violent tornadoes, damaging winds and large hail.
This is going to be a very dynamic and very strong storm system as the combination of moisture, unstable air and strong wind shear will produce a textbook severe weather setup.
If you are located anywhere from eastern Missouri southward to eastern Louisiana and eastward through Mississippi, Alabama, western and northern Georgia and the western and central Florida Panhandle and northward into Tennessee and southern Ohio, review your safety plans now. Make sure you have multiple ways to receive severe thunderstorm and tornado warnings, including NOAA Weather Radio and phone alerts, identify your safe shelter, and stay updated on the latest severe weather updates.