One product issued by NWS for: 2 Miles WNW Wasco IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
218 PM CDT Tue Aug 18 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-191930-
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-
218 PM CDT Tue Aug 18 2026 /318 PM EDT Tue Aug 18 2026/
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 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Thunderstorms developing north of the area this afternoon may
shift in portions of the area this evening before weakening
overnight. The strongest storms will be capable of damaging wind
gusts and torrential rainfall which may lead to localized
flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday, Friday and Saturday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east southeast at 30 to 40 mph.
$$