One product issued by NWS for: 2 Miles SSE Harwood Heights IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
414 AM CDT Mon Jul 14 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-150915-
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-
414 AM CDT Mon Jul 14 2025 /514 AM EDT Mon Jul 14 2025/
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 Fog Risk.
DISCUSSION...
Areas of dense fog are expected early this morning, mainly south
of I-80.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk.
Wednesday through Thursday...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk Wednesday afternoon.
Saturday and Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms are possible Tuesday afternoon south of I-80.
One or more bouts of showers and thunderstorms are expected
Wednesday, Wednesday night, and Thursday. In addition to some
potential for severe thunderstorms capable of producing damaging
winds, there is also a risk of locally torrential rainfall which
could lead to localized flash flooding.
Away from any thunderstorms, peak afternoon heat indices on
Wednesday could top out around 100 degrees in some areas.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$