One product issued by NWS for:
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
348 PM CDT Thu Mar 27 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-282100-
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-
348 PM CDT Thu Mar 27 2025 /448 PM EDT Thu Mar 27 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Large Hail Risk...up to 1 inch in diameter.
DISCUSSION...
Scattered thunderstorms are expected to spread east-northeastward
later tonight into the predawn hours of Friday. The strongest
storms will be capable of producing hail, some as large as one
inch in diameter. The best chance for marginally severe hail is
expected to be roughly south of a Dixon to Joliet to Hebron,
Indiana line.
While heavy downpours may cause ponding on some roads, widespread
flash flooding is not currently expected with tonight`s showers
and thunderstorms.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday Morning...
Limited Thunderstorm Risk.
Friday Afternoon and Night...
Limited Non-Thunderstorm Wind Risk.
Saturday Night and Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
Lingering thunderstorms into Friday morning should exit the area
by midday.
Southwest winds will likely gust up to 40 to 45 mph Friday
afternoon into or through the evening.
Thunderstorms Sunday afternoon could be strong, particularly east
of I-57.
.SPOTTER INFORMATION STATEMENT...
Spotter reports of hail overnight would be appreciated.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at about 40 mph.
$$