Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
313 PM CDT Fri Jul 18 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-192015-
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-
313 PM CDT Fri Jul 18 2025 /413 PM EDT Fri Jul 18 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 Late Tonight.
DISCUSSION...
A line of decaying thunderstorms may bring gusty winds to
northern Illinois west of the Chicago metro toward sunrise
Saturday morning.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Elevated Flooding Risk.
Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of I-80.
Elevated Flooding Risk south of Dixon to Watseka line.
Monday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.
DISCUSSION...
Several rounds of thunderstorms may occur through early next
week with strong to severe thunderstorms possible along with
torrential rain and localized flash flooding. The greatest
chances will remain south of I-80.
Dangerous heat and humidity is possible the middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 30 mph.
$$
Hazardous Weather Outlook
National Weather Service Indianapolis IN
306 PM EDT Fri Jul 18 2025
INZ021-028>031-035>049-051>057-060>065-067>072-191915-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
306 PM EDT Fri Jul 18 2025
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
Showers and thunderstorms are possible late tonight. Severe weather
not expected at this time.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Thunderstorms are possible most days. Damaging wind gusts will be
possible on Saturday. Flash flooding is possible Saturday through
Monday. Lightning is a threat with any thunderstorm.
Heat indices over 100 degrees may become common next Tuesday
afternoon.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated, but spotters are encouraged to
report any strong winds or heavy rain into tonight.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
$$
Hazardous Weather Outlook
National Weather Service Wilmington OH
240 PM EDT Fri Jul 18 2025
INZ050-058-059-066-073-074-OHZ026-034-035-042>046-051>056-060>065-
070>072-074-077-191845-
Wayne-Fayette-Union-Franklin-Ripley-Dearborn-Hardin-Mercer-Auglaize-
Darke-Shelby-Logan-Delaware-Miami-Champaign-Clark-Madison-Licking-
Preble-Montgomery-Greene-Pickaway-Fairfield-Butler-Warren-Clinton-
Hocking-Hamilton-
240 PM EDT Fri Jul 18 2025
This Hazardous Weather Outlook is for east central Indiana,
southeast Indiana, central Ohio, southwest Ohio and west central
Ohio.
.DAY ONE...This afternoon and tonight.
There is a low probability for widespread hazardous weather.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Severe weather is possible on Saturday with damaging winds the
primary threat.
Several rounds of showers and storms are expected this weekend.
These repeated episodes of heavy rain may lead to flash flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
