One product issued by NWS for: 4 Miles SSW Union IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
435 PM CDT Mon May 20 2024
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-212145-
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-
435 PM CDT Mon May 20 2024 /535 PM EDT Mon May 20 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk.
DISCUSSION...
Thunderstorms across northwest Indiana will wane through the early evening
hours. Hail to dime size and winds to 40 mph are the main hazards.
Most of the area will remain dry overnight, but a few
thunderstorms may occur after midnight mainly across northern
Illinois.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Significant Thunderstorm Risk with a:
Significant Severe Thunderstorm Risk mainly in the evening
Limited Flooding Risk.
Wednesday...
Limited Thunderstorm Risk
Friday through Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
There is a chance for thunderstorms early Tuesday morning, mainly
across northern Illinois northwest of Interstate 55. There is
also a slight chance of thunderstorms area wide Tuesday afternoon
If any storms do occur during the day Tuesday, the threat of
severe weather would be west of the Chicago metro area closer to the
Interstate 39 corridor.
Additional thunderstorms are likely Tuesday evening into Tuesday
night. Some of these storms could become severe, with the
potential for damaging winds and perhaps brief tornadoes. While
there is a threat of severe weather across the entire outlook
area, the severe weather threat appears greatest near and west of
the Interstate 39 corridor.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed tomorrow later afternoon and evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
$$