Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
316 AM CDT Mon Apr 27 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-280830-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
316 AM CDT Mon Apr 27 2026 /416 AM EDT Mon Apr 27 2026/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Level 3 of 5 Damaging Wind Risk...up to 70 mph.
     Level 2 of 5 Tornado Risk mainly south of Interstate 80.
     Level 1 of 5 Large Hail Risk...up to quarter size.

  Elevated Flooding Risk.

DISCUSSION...

Severe thunderstorms are possible this morning through this
evening. The greatest risk for severe thunderstorms is mainly
south of Interstate 80. The highest tornado risk is mainly
south of the Kankakee and Illinois River Valleys.

Heavy rainfall may lead to localized flooding and possible
renewed rises on area rivers.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Friday Night into Saturday morning...
  Limited Frost Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters will likely be needed today and this evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 40 to 50 mph.

$$

Hazard Report Provided By forecast.weather.gov