One product issued by NWS for: 3 Miles NW Ambia IN
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1042 AM CDT Tue Jul 15 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-161545-
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-
1042 AM CDT Tue Jul 15 2025 /1142 AM EDT Tue Jul 15 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...
Limited Thunderstorm Risk south of I-80.
DISCUSSION...
Isolated thunderstorms are possible this afternoon into this
evening, mainly south of I-80. No severe weather is expected.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Elevated Flooding Risk.
Limited Excessive Heat Risk.
Thursday...
High Swim Risk.
Limited Flooding Risk south of I-80.
Limited Thunderstorm Risk south of I-80.
Friday...
High Swim Risk.
Saturday...
Elevated Flooding Risk.
Limited Thunderstorm Risk.
Sunday and Monday...
Limited Thunderstorm Risk.
DISCUSSION...
Peak heat indices Wednesday afternoon are expected to be around
100 degrees.
Thunderstorms are likely Wednesday afternoon into Wednesday
evening, mainly across northern Illinois. There is the threat
that some of the storms could become severe, posing a risk of
damaging winds. In addition, thunderstorms will be capable of
producing torrential downpours which could lead localized flash
flooding.
There will be periodic bouts of showers and thunderstorms
Saturday through Monday. Any one of which could produce very
heavy rainfall and flooding.
High waves will cause dangerous swimming conditions at Lake
Michigan beaches Thursday through Friday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northwest around 20 mph.
$$