The storms saddled up in Texas on Monday night and began marching east through Louisiana and Arkansas before gaining more strength when it hit Mississippi tonight.

Photos and videos taken in central Mississippi already show the strength, and danger, of this storm. Here are some of the videos and still shots posted to social media already by 9:30 p.m. CT on Tuesday.

This was taken in Bassfield, Mississippi, just northwest of Hattiesburg.

This large funnel cloud was spotted in Eldorado, just southwest of Yazoo City, Mississippi.

Not far from there was a funnel cloud in Bay Springs, Mississippi, which is north of Hattiesburg and southeast of Jackson.

Meanwhile, here’s what it looked like it Mound, Louisiana as the storm crossed Interstate-20.

The National Weather Service has issued tornado watches and warnings into parts of Alabama and Tennessee already, and more severe weather is expected across most states east of the Mississippi River.

The National Weather Service has issued this guide on how to prepare for tornadoes and severe weather.

Bob Larson, a senior meteorologist for AccuWeather, said half of this vicious storm could happen between dusk and dawn. That means life-threatening storms, wind and tornadoes could come and go during an instance in the clothe of darkness.

The Weather Channel’s website stated that the lower portion of the Mississippi Valley was in the greatest danger with this system.

“While s​evere weather is possible from the northern Gulf Coast into the Ohio Valley, the area of most concern is in the lower Mississippi Valley,” it read on weather.com. “Strong tornadoes, large hail and destructive straight-line winds are most likely in this region. Flash flooding is also a concern given the repeated bouts of storms.”

The Weather Channel went on to say the strongest parts of this storm (high winds and possibility of hail and tornadoes) will be left behind in Mississippi, Alabama, Tennessee and maybe northwest Georgia.

Now, it’s expected to approach central Kentucky and the upper Ohio Valley overnight into early Wednesday morning with more heavy rains and high winds.