Severe thunderstorms, potential tornadoes in Belleville overnight forecast. See timeline
Southwestern Illinois and St. Louis are at an “enhanced risk” for severe thunderstorms Monday night, according to the National Weather Service.
The development of severe thunderstorms, including tornadoes, is possible in Belleville and nearby, NWS St. Louis office meteorologist Jared Maples told the News-Democrat Monday morning.
“What we do expect is that numerous thunderstorms will eventually congeal into a line and enter the metro area right around midnight or so and into Illinois just after midnight, and any one of those storms will have the potential to produce hail, high winds or tornadoes,” Maples said.
The NWS forecasts the potential for baseball-sized hail throughout the St. Louis region, though large hail may end up hitting north of Belleville, Maples said.
While experts initially expected two rounds of severe weather Monday night, Maples said the NWS now forecasts the severe threat will not let up much once it starts.
The greatest risk for Belleville residents to see severe thunderstorms is in the 6 p.m. to midnight range, Maples said, though he said he would expect the strongest threat closer to midnight.
People in southwestern Illinois and St. Louis should make sure they have multiple ways to receive tornado warnings that will wake them up if they are asleep, Maples said, as well as a shelter plan they can get to quickly should a tornado develop.
“One of the concerning things about this event is that the potential increases as we get into the evening and the overnight hours, and we’re talking about the potential for nighttime tornadoes,” Maples said.
There’s a 50% chance Belleville will see thunderstorms Tuesday, but the bulk of risky storms is forecast Monday night. Wednesday may also have isolated showers, but Thursday and Friday are expected to bring sunnier, warmer weather.
Tornado safety tips
The NWS recommends people make preparations for potential tornadoes to stay safe. Here are some tips to help:
- Listen to local news or use a weather radio to keep up-to-date with tornado watches and warnings. You can also set up notifications on your cell phone.
- Make a plan to communicate with family members or roommates, including an emergency meeting place. Good shelter options include a basement, storm cellar or interior room on the lowest floor without windows.
- Make sure all family members know where to go in case of a tornado, and don’t forget your pets if possible.
- Help your neighbors out. This can include checking on them when you’re able, offering to share shelter space or taking CPR training.
This story was originally published April 1, 2024 at 12:27 PM.
