Peoria, Ill. – After a break from severe storms on Sunday, the risk of severe weather returns to Central Illinois on Memorial Day. The Storm Prediction Center has placed Central Illinois in a slight risk for severe weather. Thunderstorms capable of damaging wind gusts, large hail and tornadoes are expected to move through the region Monday afternoon and evening.
Storm Threat Summary
- Scattered thunderstorms are likely from 7 am through 11 am with a risk of heavy rain and hail
- Severe thunderstorms are expected to develop and move across the region between 12 pm and 7 pm Monday.
- Large hail up to 2.0 inches in diameter, 70 mph wind gusts and tornadoes are possible.
- Rainfall amounts up to 2 inches are possible through Monday evening, especially along and north of I-74.
Scattered thunderstorms will move through Central Illinois Monday morning as a warm front approaches the region from the south. While these storms are not expected to be severe, they may produce hail and heavy rain. The next round of storms is then expected to develop near the Mississippi River around noon and move east through the region.
As this next round of storms develops, the warm front is expected to be near the I-74 corridor. South of the warm front, warm humid air will contribute to moderate to high instability while strong directional shear along and immediately south of the warm front will allow storms to quickly become severe. These storms will move through Central Illinois as the warm front lifts north across the region. While there is some uncertainty in the exact location of the warm front Monday afternoon, areas along and north of I-74 have the greatest risk seeing tornadoes.
Severe weather on Memorial Day poses a higher risk to people who may be impacted by the storms. Many people have plans to spend the day outdoors and may not have access to the tools which provide weather alerts.
Here are some tips so you can stay weather aware this Memorial Day
- Have multiple ways to receive weather information understanding that storm sirens may not always be heard.
- Portable Weather Radio
- Portable AM/FM Radio
- Cell Phone & Charger
- Know the difference between a watch and a warning
- Watch – Conditions are right for the development of severe storms, have a plan and be prepared to seek shelter.
- Warning – Take action! Severe weather is occurring or imminent. Seek shelter in a sturdy building immediately.
- Have access to a sturdy shelter
- Seek shelter as soon as storms approach. Don’t wait until the rain starts to fall, it may be too late. When thunder roars, go indoors!
- Have a plan to meet with family and friends in the event that you are separated.
This next round of severe storms comes on the heels of three other severe weather events that occurred in Central Illinois this past week. Severe storms brought damaging winds, large hail and a tornado to the region on Wednesday night. On Friday, an isolated supercell produced tornadoes in Fulton and McDonough Counties and brought damaging winds and large hail to areas along and north of Highway 136 from McDonough County to McLean County. The last round came Saturday night as a line of storms brought flash flooding and knocked down trees and power lines to many of the same areas who impacted by the storms on Friday.