Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
851 PM CDT Fri Jul 18 2025
WIZ046-047-051-052-056>060-062>072-200200-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
851 PM CDT Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Scattered thunderstorms are forecast late tonight across southern
Wisconsin. A few strong thunderstorms are possible south of
Interstate 94, with damaging winds the main hazard and small hail
possible.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
Scattered thunderstorms are forecast to continue across
southeastern Wisconsin into Saturday morning, with the potential
for strong to severe storms remaining south of Interstate 94.
Thunderstorms are expected to exit southeast Wisconsin by
midday.
There is a chance of additional, more isolated, thunderstorms
Saturday afternoon. Damaging winds and hail are possible.
There are on and off chances for thunderstorms next week, with
the best chances Tuesday night into Thursday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed late tonight through Saturday.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
321 PM CDT Fri Jul 18 2025
LMZ521-522-541>543-192030-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
321 PM CDT Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...Tonight
Thunderstorms are possible toward daybreak. Any thunderstorms
could pose a hazard to mariners.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
Thunderstorms are possible Saturday, and at times during the next
work week.
$$
Kieckbusch
Hazardous Weather Outlook
National Weather Service Green Bay WI
321 PM CDT Fri Jul 18 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-192030-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
321 PM CDT Fri Jul 18 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
There is a chance for thunderstorms, mainly after midnight. These
storms are not expected to be severe.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
There are chances for thunderstorms Saturday and at times during
the next work week. It is too early to determine specific timing
and location details, but strong storms and heavy rainfall look
most likely during the middle of the week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
313 PM CDT Fri Jul 18 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-192015-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
313 PM CDT Fri Jul 18 2025 /413 PM EDT Fri Jul 18 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk Late Tonight.
DISCUSSION...
A line of decaying thunderstorms may bring gusty winds to
northern Illinois west of the Chicago metro toward sunrise
Saturday morning.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Elevated Flooding Risk.
Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of I-80.
Elevated Flooding Risk south of Dixon to Watseka line.
Monday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.
DISCUSSION...
Several rounds of thunderstorms may occur through early next
week with strong to severe thunderstorms possible along with
torrential rain and localized flash flooding. The greatest
chances will remain south of I-80.
Dangerous heat and humidity is possible the middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 30 mph.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
227 PM CDT Fri Jul 18 2025
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-190930-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-Warren-
Hancock-McDonough-Scotland-Clark-
227 PM CDT Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east central
Iowa...northeast Iowa...southeast Iowa and northeast Missouri.
.DAY ONE...LATE THIS AFTERNOON TONIGHT
Thunderstorms are likely across portions of the Outlook area late
tonight into Saturday morning. Severe wind gusts up to 60 mph are
possible along with heavy rain and possible flash flooding. Hail is
also possible with the strongest storm.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
Thunderstorms are likely for parts of the area Saturday morning.
Severe wind gusts up to 60 mph are possible along with heavy rain
and possible flash flooding. Hail is also possible with the
strongest storm.
Additional rounds of thunderstorms are possible Saturday evening
through Tuesday. Severe storms are possible at times along with
torrential rain and a flash flood threat for areas that receive
repeated rounds of heavy rain. Urban areas and locations recently
impacted by flash flooding will be especially susceptible to flash
flooding. A flood watch for flash flooding is in effect from through
Sunday morning.
Dangerous heat and humidity is possible by the middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight or Saturday morning,
but may be needed late Saturday afternoon and Saturday evening.
$$
Hazardous Weather Outlook
National Weather Service La Crosse WI
321 AM CDT Fri Jul 18 2025
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-191100-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
321 AM CDT Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...Today and Tonight
Thunderstorms will be possible tonight. Heavy rainfall could lead to
localized flooding. A few of these could be strong in southeast
Minnesota and northeast Iowa. The main threats are hail and
damaging winds.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Thunderstorms will be possible Saturday morning. A few of these
could be strong to severe in northeast Iowa and southwest
Wisconsin. The main threats are hail and damaging winds. In
addition, heavy rain may cause localized flooding south of
Interstate 90.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
$$
Boyne
