2 products issued by NWS for: 3 Miles WNW Geneva IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
151 PM CDT Fri Aug 14 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-151900-
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-
151 PM CDT Fri Aug 14 2026 /251 PM EDT Fri Aug 14 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Significant Flooding Risk especially along and south of Interstate 80.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
DISCUSSION...
Another round of thunderstorms is expected tonight with the
highest coverage favored along and south of Interstate 80.
Torrential rain rates may lead to widespread flash flooding. In
addition, locally damaging winds cannot be ruled out.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...
Significant Flooding Risk in the morning south of Interstate 80.
Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday and Wednesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
DISCUSSION...
A strong to severe storm cannot be ruled out Saturday night into
early Sunday morning. Then, additional storms may occur during the
middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed overnight for flash flooding reports.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
$$
Flood Watch
Flood Watch
National Weather Service Chicago IL
1201 PM CDT Fri Aug 14 2026
ILZ008-010>013-020-103>106-150300-
/O.NEW.KLOT.FA.A.0013.260815T0300Z-260815T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ogle-Lee-De Kalb-Kane-DuPage-Kendall-Northern Cook-Central Cook-
Southern Cook-Northern Will-
Including the cities of Plano, Park Forest, Bolingbrook, Dixon,
Palatine, Aurora, Northbrook, Evanston, Elgin, Chicago, Joliet, La
Grange, Oregon, Rochelle, Downers Grove, Oak Lawn, Oak Forest,
Oswego, Mokena, Sycamore, Schaumburg, Plainfield, Yorkville, Oak
Park, Carol Stream, DeKalb, Des Plaines, Orland Park, Cicero,
Lombard, Calumet City, Lemont, Byron, Wheaton, and Naperville
1201 PM CDT Fri Aug 14 2026
...FLOOD WATCH IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH SATURDAY
MORNING...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of north central and northeast Illinois including
Lee, Ogle, DeKalb, Kane, Kendall, DuPage, Cook, and northern Will
counties.
* WHEN...From 10 PM CDT this evening through Saturday morning.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas, especially in the
vicinity of storm drains that are clogged by leaf debris.
Underpasses and viaducts may flood in urban areas, as well.
* ADDITIONAL DETAILS...
- Another round of torrential rain-producing showers and storms is
expected across the watch area tonight. Saturated soils and
torrential downpours will set the stage for flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts. Have multiple ways to receive warning
information including at least one way that will wake you up.
&&
$$