The storm that led to the warning is moving to the eastern metro area and is weakening. A severe thunderstorm warning was in effect until 6 p.m. 12 for parts of central DeKalb and southwestern Gwinnett counties, including Lawrenceville, Lilburn, and Stone Mountain.
Overall, a tornado is in effect until 6 p.m. 16.00 ET for parts of Georgia and Alabama, including Atlanta, Macon and Montgomery, as further thunderstorms could produce a few tornadoes in this watch area through the afternoon. Hail up to 1
In addition, a new system is developing across the plains, which will trigger a separate eruption of severe weather during the night.
Tornadoes probably in the southern plain and the Ohio River Valley
Showers and storms Monday morning leave the Ohio River Valley at noon, while the southern plains remain dry most of the day.
Storms can also get severe in Dallas and Chicago, but the best chance is between these two cities.
Storm surges are possible overnight, so some places can be hit by more than one storm – perhaps more than a severe storm.
These storms may not reach the western Ohio River Valley until early Tuesday morning, possibly affecting cities including Nashville, Indianapolis, St. Louis and more. Louis and Louisville.
Severe storms are also possible in the Southeast
Marginal, level 1 out of 5, chances of severe storms stretching from the deep south through the Mid-Atlantic. Cities including Washington, Richmond and Charlotte are all included in this risk area.
Unlike in the central United States, the threat in the southeast will be primarily in daylight.
Thunderstorms are already tracing across inner parts of the Southeast Monday morning. There will likely be a break from this rain, at least a few hours noon before a new round develops.
This round should be monitored for severe storms this afternoon and evening. Reports of tornadoes, hail and damaging winds are expected with some of these storms.
Local flash flooding is possible with any of the day’s storms, and in some places measuring 1 to 3 inches of rain.
Many states in the southeast have seen double their normal rainfall over the past month, so even 1 to 2 inches of extra rain can lead to flash flooding.
Storm storms to the east Tuesday
This puts a state like Mississippi at risk of tornadoes, but tornadoes may be possible especially in parts of Louisiana, Alabama and Tennessee, where there is a level 3 out of 5 severe weather risk.
“Heavy hail, damaging gusts of wind and a few tornadoes are likely to be accompanied by precipitation of over an inch per hour,” said the National Weather Service office in Jackson, Mississippi.
A few showers and storms could be possible during the day, especially in the Tennessee River Valley, but the main event will be Tuesday night through Tuesday night across the Gulf Coast states.
It is expected that a grinding line will form, creating widespread storms. This line is expected to reach as far north as the Great Lakes, but the storms are likely to be more scattered.
Flash flooding is possible all over the South thanks to the combination of heavy rainfall and all the rain that has fallen in recent days and weeks. A widespread 1-3 inch of rain is expected across this region by Tuesday night.
On Wednesday, this line of storm was to weaken Wednesday morning as it approaches the east coast of the United States, but isolated severe weather will continue to be possible.