Update 2:15PM CDT…
The Severe Thunderstorm watch has been cancelled for the entire Chicago area. While there will be showers and a few thunderstorms around the area as weak low pressure drifts out of northern Illinois into northern Indiana this Tuesday afternoon, the threat of severe storms has decreased significantly.
The National Storm Prediction Center has issued a Severe Thunderstorm Watch for northeast Illinois until 3PM this Tuesday for counties west and south of Chicago. This includes the following counties: DeKalb, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, LaSalle, Lee, Livingston, Ogle, and Will.
The Watch DOES NOT INCLUDE the city of Chicago/Cook County, DuPage County, counties adjacent to the Illinois/Wisconsin state line and counties in northwest Indiana.
The NWS Storm Prediction Center has issued a
- Severe Thunderstorm Watch for portions of Southeastern Iowa Central and northern Illinois Northern and eastern Missouri
- Effective this Tuesday morning and afternoon from 615 AM until 3:00 PM CDT.
- Primary threats include: Widespread damaging winds and isolated significant gusts to 80 mph likely; isolated large hail events to 1.5 inches in diameter possible; tornado or two possible
An expanding, severe complex of thunderstorms will sweep southeastward across the watch area into early afternoon, the main severe-weather hazard being wind. Isolated hail and an embedded tornado also cannot be ruled out.
The severe thunderstorm watch area is approximately along and 120 statute miles either side of a line from 10 miles west northwest of Ottumwa IA to 20 miles east northeast of Mattoon IL.