More than 25 million Americans are under threat to harmful winds, hail and tornadoes on Saturday.
The long section of severe disruptive climate and sudden floods through parts of the center and east of the United States will change the east on Saturday.
The main severe climatic threats for this area are the gusts of harmful wind and great hail, with a risk of tornado isolated mainly for northern Virginia to New Hampshire. Sudden floods will also be a risk for these areas and surrounding areas throughout the east.
The new storms will begin after the 1 PM ET from Las Carolinas to New York. These storms will go east throughout the afternoon until the night, and some become strong enough to produce harmful winds, large hail and perhaps an isolated tornado.
Severe climatic activity will be reduced rapidly just before midnight, but the threat of sudden flooding will remain during the night with any of the heaviest downpours that are established.
The storm system that is responsible for the stormy and humid climate for the east of the United States on Saturday is part of an “omega block pattern” where two storm systems are blocked between a high pressure area.
This pattern creates a strong contrast in climatic conditions in a wide area, and this will be the case for this weekend.
Some of these showers will be heavy enough to produce some isolated sudden floods for northeast parts between Sunday and Tuesday.
On Friday, hail, larger than a tennis ball, was reported near Márquez, Texas, while generalized hail in or more than the size of a room reported in other places from Texas to New York.
On this screen of a video, a possible tornado near Killeen, Oklahoma, on May 1, 2025 is shown.
Eric Webb/x
There are generalized reports of fallen trees and electric lines on roads from Texas to Ohio, along with isolated reports of damage to Texas structures.
Severe climate and sudden flood threat
The Western storm system will slowly arrive at the center of the USA. On Monday, taking advantage of the moisture of the Gulf and bringing a severe climate and a threat of sudden flood for the region.
For Monday, the threat of severe climate focuses on the center of Texas and includes Fort Stockton, Midland, Lubbock and Abilene.
The main risks from now on seem to be great to very large hail and harmful winding winds, as well as sudden floods.
These storms will begin to light during the first in the middle of the afternoon as discrete supercellular storms, growing in storm groups during the night.
On this screen, you get a video, a possible tornado is shown about 2 miles east of Briggs, Texas, on May 1, 2025.
Logan Martinson
For Tuesday, this storm system will continue to move east, changing the threat of sudden flooding to deep southern parts and taking advantage of more moisture for a greater threat of sudden flood.
The greatest threat of sudden flooding for Tuesday (level 3 or 4) focuses on East Texas, the southwest end of Arkansas and northern Louisiana. This includes Texarkana, Arkansas; Lufkin, Texas; and Shreveport, Louisiana.
It is likely that other areas of the southern plains and the deep south see sudden floods on Tuesday from Oklahoma to Mississippi.
Some of these areas have already seen a lot of rain last week, making the ground very saturated. This will facilitate sudden floods with any heavy rain that occurs in early next week.
In addition, the rain of these storms is still slowly arriving at the Mississippi River. Because of this, the rivers are already high and the additional rain will probably cause floods in the river in the Mississippi lower river valley.
