An extremely dangerous outbreak of tornadoes will endanger many lives and property from northeastern Texas into Arkansas, northern Louisiana, northwestern Mississippi and western Tennessee into Wednesday.
These are the same areas that were just hit by tornadoes Monday afternoon and night, and tonight's outbreak is expected to be worse than Monday's. Large, long-track tornadoes are a major concern.
As of 11:30 p.m. EDT, there have been 34 tornado sightings from northeastern Texas to western Kentucky and Mississippi. These tornadoes have caused extensive damage in Arkansas, Mississippi and Texas.
A tractor trailer was blown off of Highway 165 near Coy, Ark. Cars were reported off the highway and trees were snapped near Marshall, Texas. The Groesbeck, Texas fire station was damaged by a tornado as well. Damage in other tornadoes includes structural damage, downed power lines and trees.
"It's a very dangerous day," said AccuWeather.com Senior Meteorologist Henry Margusity. "It's the kind of day where tornadoes could cause massive destruction."
The violent thunderstorms are racing into the western Tennessee Valley, then will shift farther east through the Tennessee and Ohio Valleys Wednesday into Wednesday night.
There is concern that some of the tornadoes into Wednesday will be strong (EF3 tornado ranking or higher) and long-tracking.
"People should review tornado safety guidelines and take any [severe thunderstorm or tornado] watches and warnings very seriously," stressed Kottlowski.
Those residents being threatened by the tornadoes at night should take extra precautions to ensure they do not sleep through vital tornado sirens or warnings.
Tornadoes are not the only concern through Wednesday. Many of the strongest thunderstorms will unleash strong winds, flooding downpours and hail up to the size of softballs.
Flash flooding kills more people in the U.S. every year than tornadoes do, and most of the deaths happen when people attempt to drive across a roadway covered with water.
Never attempt to cross a flooded roadway. Always turn around and find an alternate route.
Repeating and slow-moving storms will raise the risk of flash flooding and damaging winds over the northern and central High Plains into Thursday night.
Thunderstorms that have already brought the risk of severe weather to a portion of the mid-Atlantic states will continue track into the Northeast through Thursday night.
As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave.
Rounds of showers and thunderstorms moving westward off the coast of Africa may pave the way for future tropical systems over the Atlantic Ocean in the weeks ahead.
Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend.
A budding tropical system threatens to bring flooding rain to the Philippines into this weekend with potential future impacts on China and Taiwan.
Western Pacific (1990)
Typhoon Steve east of Iwo Jimo. Peak winds of 125 mph sustained gusts to 155 mph.
5-12" of rain north of Denver led to serious flash flooding (28th-29th). 108 mobile homes were destroyed and 481 others were damaged in Ft. Collins. 5 people were killed and 40 others injured.
Sharon, PA (1999)
70 mph wind gus in a thunderstorm.