One product issued by NWS for: Naperville IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
346 PM CDT Wed Apr 30 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-012100-
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-
346 PM CDT Wed Apr 30 2025 /446 PM EDT Wed Apr 30 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.
Limited Flooding Risk.
DISCUSSION...
Rain with embedded thunderstorms after midnight tonight into the
pre-dawn hours of Thursday may produce locally heavy rainfall
amounts, potentially leading to localized flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of I-80.
DISCUSSION...
There is a 20 to 50 percent chance of isolated to scattered
thunderstorms on Thursday, with the highest coverage and
probability of thunderstorms south of I-80 where a few strong to
severe thunderstorms may occur.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north northeast at 40 to 45 mph.
$$