Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
306 PM CDT Fri Sep 18 2026
LMZ740-190415-
/O.EXP.KLOT.SC.Y.0081.000000T0000Z-260918T2000Z/
/O.NEW.KLOT.SC.Y.0082.260919T0300Z-260919T2000Z/
Winthrop Harbor to Wilmette Harbor IL-
306 PM CDT Fri Sep 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 3 PM
CDT SATURDAY...
...PREVIOUS SMALL CRAFT ADVISORY HAS EXPIRED...
* WHAT...Southeast winds to 25 kt and significant waves to 7 ft
occasionally to 9 ft expected.
* WHERE...Winthrop Harbor to Wilmette Harbor IL.
* WHEN...From 10 PM this evening to 3 PM CDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
306 PM CDT Fri Sep 18 2026
LMZ741-190415-
/O.NEW.KLOT.SC.Y.0082.260919T0300Z-260919T2000Z/
Wilmette Harbor to Northerly Island IL-
306 PM CDT Fri Sep 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 3 PM
CDT SATURDAY...
* WHAT...Southeast winds to 25 kt and significant waves to 7 ft
occasionally to 9 ft expected.
* WHERE...Wilmette Harbor to Northerly Island IL.
* WHEN...From 10 PM this evening to 3 PM CDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
202 PM CDT Fri Sep 18 2026
LMZ643-644-190315-
/O.NEW.KMKX.SC.Y.0085.260919T0300Z-260920T0600Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
202 PM CDT Fri Sep 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 AM
CDT SUNDAY...
* WHAT...East winds 15 to 25 kt with gusts up to 30 kt and waves
5 to 8 ft expected.
* WHERE...Nearshore Waters from Sheboygan to North Point
Lighthouse.
* WHEN...From 10 PM this evening to 1 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
202 PM CDT Fri Sep 18 2026
LMZ645-646-190315-
/O.EXP.KMKX.SC.Y.0084.000000T0000Z-260918T1900Z/
/O.NEW.KMKX.SC.Y.0085.260919T0300Z-260920T0600Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
202 PM CDT Fri Sep 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 AM
CDT SUNDAY...
* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt and
waves 4 to 7 ft expected.
* WHERE...Nearshore Waters from North Point Lighthouse to
Winthrop Harbor IL.
* WHEN...From 10 PM this evening to 1 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
131 PM CDT Fri Sep 18 2026
LMZ542-543-190245-
/O.NEW.KGRB.SC.Y.0082.260919T0800Z-260920T0200Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
131 PM CDT Fri Sep 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 9 PM CDT
SATURDAY...
* WHAT...East winds 15 to 25 kt and waves 3 to 6 ft expected.
* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to
Sheboygan.
* WHEN...From 3 AM to 9 PM CDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...The highest winds and waves are expected
south of Algoma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Kurimski
Beach Hazards Statement
Coastal Hazard Message
National Weather Service Chicago IL
302 PM CDT Fri Sep 18 2026
ILZ006-190415-
/O.EXP.KLOT.BH.S.0015.000000T0000Z-260918T2000Z/
/O.NEW.KLOT.BH.S.0016.260919T0300Z-260920T0000Z/
Lake IL-
302 PM CDT Fri Sep 18 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...
...PREVIOUS BEACH HAZARDS STATEMENT HAS EXPIRED...
* WHAT...High wave action and dangerous currents expected at Lake
Michigan beaches. Waves 4 to 7 ft expected.
* WHERE...Lake County IL.
* WHEN...From 10 PM CDT this evening through Saturday evening.
* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
&&
$$
Coastal Hazard Message
National Weather Service Chicago IL
302 PM CDT Fri Sep 18 2026
ILZ103-104-190415-
/O.EXP.KLOT.BH.S.0015.000000T0000Z-260918T2000Z/
/O.NEW.KLOT.BH.S.0016.260919T0300Z-260919T2000Z/
Northern Cook-Central Cook-
302 PM CDT Fri Sep 18 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY AFTERNOON...
...PREVIOUS BEACH HAZARDS STATEMENT HAS EXPIRED...
* WHAT...High wave action and dangerous currents expected at Lake
Michigan beaches. Waves 3 to 6 ft expected.
* WHERE...Northern Cook and Central Cook Counties.
* WHEN...From 10 PM CDT this evening through Saturday afternoon.
* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
&&
$$
Lakeshore Hazard Message
National Weather Service Milwaukee/Sullivan WI
203 PM CDT Fri Sep 18 2026
WIZ052-060-190315-
/O.NEW.KMKX.BH.S.0022.260919T0300Z-260920T0600Z/
Sheboygan-Ozaukee-
203 PM CDT Fri Sep 18 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE SATURDAY NIGHT...
* WHAT...Life threatening waves of 4 to 7 feet and dangerous
currents are expected.
* WHERE...Sheboygan and Ozaukee Counties.
* WHEN...From 10 PM CDT this evening through late Saturday night.
* IMPACTS...Dangerous swimming conditions are expected due to
high waves and onshore winds.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay out of the water and away from dangerous areas like piers
and breakwalls. Strong structural and longshore currents are
expected. Rip currents are possible.
&&
$$
Lakeshore Hazard Message
National Weather Service Milwaukee/Sullivan WI
203 PM CDT Fri Sep 18 2026
WIZ066-071-072-190315-
/O.EXP.KMKX.BH.S.0021.000000T0000Z-260918T1900Z/
/O.NEW.KMKX.BH.S.0022.260919T0300Z-260920T0600Z/
Milwaukee-Racine-Kenosha-
203 PM CDT Fri Sep 18 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE SATURDAY NIGHT...
* WHAT...Life threatening waves of 4 to 7 feet and dangerous
currents are expected.
* WHERE...Milwaukee, Racine and Kenosha Counties.
* WHEN...From 10 PM CDT this evening through late Saturday night.
* IMPACTS...Dangerous swimming conditions are expected due to
high waves and onshore winds.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay out of the water and away from dangerous areas like piers
and breakwalls. Strong structural and longshore currents are
expected. Rip currents are possible.
&&
$$
Coastal Hazard Message
National Weather Service Green Bay WI
130 PM CDT Fri Sep 18 2026
WIZ040-050-190230-
/O.NEW.KGRB.BH.S.0020.260919T0800Z-260920T0200Z/
Kewaunee-Manitowoc-
130 PM CDT Fri Sep 18 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY EVENING...
* WHAT...High waves and dangerous currents expected.
* WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc
Counties.
* WHEN...From late tonight through Saturday evening.
* IMPACTS...Dangerous swimming conditions are expected. Strong
currents can pull swimmers into deeper water and high waves
can sweep people off piers.
* ADDITIONAL DETAILS...Several beaches that will be most
susceptible to the dangerous swimming conditions include...
Cresent Beach and City of Kewaunee Beach in Kewaunee County.
Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc
County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid hazardous swimming conditions.
&&
$$
Kurimski
Flood Watch
Flood Watch
National Weather Service Quad Cities IA IL
156 PM CDT Fri Sep 18 2026
IAZ040>042-054-ILZ001-002-007-191900-
/O.CON.KDVN.FA.A.0011.260919T0600Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Buchanan-Delaware-Dubuque-Jackson-Jo Daviess-Stephenson-Carroll-
Including the cities of Manchester, Mount Carroll, Galena, Freeport,
Independence, Maquoketa, and Dubuque
156 PM CDT Fri Sep 18 2026
...FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT SATURDAY THROUGH
SATURDAY EVENING...
* WHAT...Flooding and flash flooding caused by excessive rainfall is
possible.
* WHERE...Portions of northwest Illinois, including the following
counties, Carroll, Jo Daviess and Stephenson and Iowa, including
the following counties, Buchanan, Delaware, Dubuque and Jackson.
* WHEN...From 1 AM CDT Saturday through Saturday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Rounds of showers and storms are expected from late tonight
through Saturday. These storms will be capable of rainfall rates
between 1 to 2 inches per hour. Rainfall totals of 1 to 3 inches
are likely in the hardest hit areas through Saturday evening with
the potential for localized areas of 3+ inches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Uttech
Flood Watch
National Weather Service Quad Cities IA IL
156 PM CDT Fri Sep 18 2026
IAZ053-066-ILZ009-191900-
/O.EXA.KDVN.FA.A.0011.260919T0600Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jones-Clinton-Whiteside-
Including the cities of Clinton, Anamosa, and Sterling
156 PM CDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 1 AM CDT SATURDAY THROUGH SATURDAY
EVENING...
* WHAT...Flooding and flash flooding caused by excessive rainfall is
possible.
* WHERE...Portions of northwest Illinois, including the following
county, Whiteside and east central Iowa, including the following
counties, Clinton and Jones.
* WHEN...From 1 AM CDT Saturday through Saturday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Rounds of showers and storms are expected from late tonight
through Saturday. These storms will be capable of rainfall rates
between 1 to 2 inches per hour. Rainfall totals of 1 to 3 inches
are likely in the hardest hit areas through Saturday evening with
the potential for localized areas of 3+ inches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Flood Watch
National Weather Service Chicago IL
147 PM CDT Fri Sep 18 2026
ILZ003>005-008-190415-
/O.NEW.KLOT.FA.A.0016.260919T0600Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Winnebago-Boone-McHenry-Ogle-
Including the cities of Woodstock, Byron, Belvidere, Rochelle,
Rockford, McHenry, Algonquin, Oregon, and Crystal Lake
147 PM CDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 1 AM CDT SATURDAY THROUGH SATURDAY
MORNING...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of north central and northeast Illinois, including
the following counties, in north central Illinois, Boone, Ogle and
Winnebago. In northeast Illinois, McHenry.
* WHEN...From 1 AM CDT Saturday through Saturday morning.
* IMPACTS...Creeks and streams may rise out of their banks. Roads and
streets may be flooded.
* ADDITIONAL DETAILS...
- Showers and thunderstorms overnight into Saturday morning may
produce widespread rainfall rates up to 2 inches per hour that
could lead to flash flooding.
Additional thunderstorms Saturday evening into early Sunday
morning have the potential to produce torrential rainfall that
results in flash flooding, though the exact placement of this
rainfall remains unclear. A second Flood Watch for flash flooding
may be needed during this period.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Watch for flash flooding means rapid-onset flooding is
possible, but not yet certain, based upon the latest forecasts. Flash
flooding is a dangerous situation. Persons with interests along area
rivers, creeks, and other waterways should monitor the latest
forecasts and be prepared to take action should flooding develop.
&&
$$
Flood Watch
National Weather Service Chicago IL
147 PM CDT Fri Sep 18 2026
ILZ006-010>013-020-103>106-INZ001-002-190415-
/O.NEW.KLOT.FA.A.0016.260919T0900Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lake IL-Lee-De Kalb-Kane-DuPage-Kendall-Northern Cook-Central
Cook-Southern Cook-Northern Will-Lake IN-Porter-
Including the cities of Plano, Evanston, Aurora, Waukegan, Calumet
City, Mokena, Naperville, Chicago, Yorkville, Merrillville, DeKalb,
Lemont, Elgin, Orland Park, Hammond, Northbrook, Mundelein,
Schaumburg, Des Plaines, Joliet, Gurnee, Park Forest, Plainfield,
Carol Stream, Oswego, Palatine, Cicero, Valparaiso, Downers Grove,
Oak Park, Chesterton, Sycamore, Lombard, Portage, Gary, Oak Lawn,
Bolingbrook, Buffalo Grove, Wheaton, La Grange, Oak Forest, and Dixon
147 PM CDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
MORNING...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of Illinois, including the following areas, Cook,
De Kalb, DuPage, Kane, Kendall, Lake, Lee, and Northern Will and
northwest Indiana, including the following areas, Lake and Porter.
* WHEN...From late tonight through Saturday morning.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Roads and streets may
be flooded.
* ADDITIONAL DETAILS...
- Showers and thunderstorms late tonight through Saturday morning
may produce widespread rainfall rates up to 2 inches per hour
that could lead to flash flooding, particularly over urban areas.
Additional thunderstorms Saturday evening into early Sunday
morning have the potential to produce torrential rainfall that
results in flash flooding, though the exact placement of this
rainfall remains unclear. A second Flood Watch for flash flooding
may be needed during this period.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Watch for flash flooding means rapid-onset flooding is
possible, but not yet certain, based upon the latest forecasts. Flash
flooding is a dangerous situation. Persons with interests along area
rivers, creeks, and other waterways should monitor the latest
forecasts and be prepared to take action should flooding develop.
&&
$$
Kluber
Flood Watch
National Weather Service Milwaukee/Sullivan WI
137 PM CDT Fri Sep 18 2026
WIZ046-047-051-052-058>060-064>066-070>072-190245-
/O.EXA.KMKX.FA.A.0007.260919T0600Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Jefferson-Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Beaver Dam, Muskego, Oostburg, Fort Atkinson,
New Berlin, Delavan, Kenosha, Endeavor, Waukesha, Jefferson, Howards
Grove, West Bend, Sheboygan Falls, Cedarburg, Mayville, Grafton,
Mequon, Racine, Plymouth, Menomonee Falls, East Troy, Fond Du Lac,
Oxford, Neshkoro, Westfield, Markesan, Princeton, Hartford,
Whitewater, Watertown, Milwaukee, Elkhorn, Germantown, Berlin,
Montello, Waupun, Brookfield, and Lake Geneva
137 PM CDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 1 AM CDT SATURDAY THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding and flash flooding caused by excessive rainfall are
possible.
* WHERE...Portions of east central, south central, and southeast
Wisconsin, including the following counties, in east central
Wisconsin, Fond du Lac and Sheboygan. In south central Wisconsin,
Green Lake and Marquette. In southeast Wisconsin, Dodge, Jefferson,
Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and
Waukesha.
* WHEN...From 1 AM CDT Saturday through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Storm drains
and ditches may become clogged with debris.
* ADDITIONAL DETAILS...
- Widespread and prolonged showers and storms will bring rain
accumulations of 1-3 inches. Band of higher totals in the 3-6
inches range or more will be possible in areas where storms track
repeatedly.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Flood Watch
National Weather Service Milwaukee/Sullivan WI
137 PM CDT Fri Sep 18 2026
WIZ056-057-062-063-067>069-190245-
/O.CON.KMKX.FA.A.0007.260919T0600Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sauk-Columbia-Iowa-Dane-Lafayette-Green-Rock-
Including the cities of Baraboo, Shullsburg, Portage, Blanchardville,
Belmont, Madison, Reedsburg, Barneveld, Benton, Brodhead, Beloit,
Lake Wisconsin, Argyle, Columbus, Darlington, Sauk City, Dodgeville,
Lodi, Monroe, Janesville, Mineral Point, and Prairie Du Sac
137 PM CDT Fri Sep 18 2026
...FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT SATURDAY THROUGH
SATURDAY AFTERNOON...
* WHAT...Flooding and flash flooding caused by excessive rainfall are
possible.
* WHERE...A portion of south central Wisconsin, including the
following counties, Columbia, Dane, Green, Iowa, Lafayette, Rock
and Sauk.
* WHEN...From 1 AM CDT Saturday through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Storm drains
and ditches may become clogged with debris.
* ADDITIONAL DETAILS...
- Widespread and prolonged showers and storms will bring rain
accumulations of 1-3 inches. Band of higher totals in the 3-6
inches range or more will be possible in areas where storms track
repeatedly.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Flood Watch
National Weather Service La Crosse WI
1100 AM CDT Fri Sep 18 2026
IAZ008>011-MNZ086>088-094>096-WIZ041-042-053>055-061-190500-
/O.CON.KARX.FA.A.0009.260919T0000Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mitchell-Howard-Winneshiek-Allamakee-Dodge-Olmsted-Winona-Mower-
Fillmore-Houston-La Crosse-Monroe-Vernon-Crawford-Richland-Grant-
Including the cities of Richland Center, Viroqua, La Crosse, Waukon,
Winona, Austin, Tomah, Decorah, Sparta, Prairie Du Chien, Cresco,
Platteville, Caledonia, Rochester, Dodge Center, Osage, and Preston
1100 AM CDT Fri Sep 18 2026
...FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
SATURDAY AFTERNOON...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Iowa, including the following counties,
Allamakee, Howard, Mitchell and Winneshiek, southeast Minnesota,
including the following counties, Dodge, Fillmore, Houston, Mower,
Olmsted and Winona, and Wisconsin, including the following
counties, Crawford, Grant, La Crosse, Monroe, Richland and Vernon.
* WHEN...From 7 PM CDT this evening through Saturday afternoon.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Widespread rain has developed across the region today and will
continue into the day Saturday. The heaviest rainfall will occur
from Friday evening through Saturday morning. Some locations may
see multiple inches of rainfall, particularly near and south of
Interstate 94.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
JRN
Flood Watch
National Weather Service La Crosse WI
1100 AM CDT Fri Sep 18 2026
IAZ018-019-029-030-MNZ079-WIZ032>034-043-044-190500-
/O.EXA.KARX.FA.A.0009.260919T0000Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Floyd-Chickasaw-Fayette-Clayton-Wabasha-Buffalo-Trempealeau-Jackson-
Juneau-Adams-
Including the cities of Wabasha, Whitehall, Elkader, Friendship, New
Hampton, Black River Falls, Arcadia, Mauston, Alma, Oelwein, and
Charles City
1100 AM CDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Iowa, including the following counties,
Chickasaw, Clayton, Fayette and Floyd, southeast Minnesota,
including the following county, Wabasha, and Wisconsin, including
the following counties, Adams, Buffalo, Jackson, Juneau and
Trempealeau.
* WHEN...From 7 PM CDT this evening through Saturday afternoon.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Widespread rain has developed across the region today and will
continue into the day Saturday. The heaviest rainfall will occur
from Friday evening through Saturday morning. Some locations may
see multiple inches of rainfall, particularly near and south of
Interstate 94.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
325 PM CDT Fri Sep 18 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-192030-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
325 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for the open waters of Lake Michigan.
.DAY ONE...Tonight
Chance of thunderstorms tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
Chance of thunderstorms Saturday into Saturday evening..
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
325 PM CDT Fri Sep 18 2026
LMZ643>646-192030-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
325 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
Small craft conditions develop tonight.
Chance of thunderstorms tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
Small craft conditions continue for Saturday. Additional periods
of small craft conditions possible for Sunday into next week.
Chance of thunderstorms Saturday into Saturday evening..
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
325 PM CDT Fri Sep 18 2026
WIZ046-047-051-052-056>060-062>072-192030-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
325 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Widespread showers and thunderstorms this evening into Saturday
morning. Heavy rainfall of 1 to 3 inches and band of 3-5 inches or
more possible. Urban and small stream flooding and/or flash
flooding is possible. A Flood Watch is now in effect for all
southern WI.
High swim risk for all southern WI beaches tonight into Saturday
morning.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
A Flood Watch continues for all southern WI into Saturday early
afternoon. Additional rain and stronger storms may be possible
Saturday later afternoon and evening, especially toward the WI/IL
border.
A High Swim Risk continues Saturday with additional periods of
elevated swim risk conditions for Sunday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed but rainfall reports are
appreciated.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 PM CDT Fri Sep 18 2026
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-
308 PM CDT Fri Sep 18 2026 /408 PM EDT Fri Sep 18 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk late.
Elevated Flooding Risk late.
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Thunderstorms with torrential rainfall are expected to shift
southward toward far northern Illinois overnight and to as far
south as the I-88 corridor by sunrise Saturday. Localized flash
flooding will be possible where heavy rains persist over the same
areas.
High waves will create dangerous swimming conditions at Lake
Michigan beaches in northeast Illinois tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...
Significant Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday...
Elevated Flooding Risk early.
Limited Thunderstorm Risk.
Monday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Saturday through Tuesday...
High Swim Risk Lake Michigan Beaches at times.
DISCUSSION...
Periods of heavy rain and scattered thunderstorms will continue
through at least Sunday morning and possibly into Monday.
Localized flash flooding and local river rises are possible. The
greatest threat for widespread areal flooding is Saturday into
Saturday night when multiple rounds of thunderstorms with
torrential rainfall cross the area.
Persistent northeast winds will maintain high waves and
dangerous swimming conditions at Lake Michigan beaches in
northeast Illinois and northwest Indiana through early next
week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 20 mph.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 PM CDT Fri Sep 18 2026
LMZ740>745-192015-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
308 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Hazardous conditions for small craft.
Elevated Thunderstorm Risk late.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...
Hazardous conditions for small craft are likely.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday and Monday...
Hazardous conditions for small craft are likely.
Limited Thunderstorm Risk.
Tuesday and Wednesday...
Hazardous conditions for small craft are likely.
$$
Kluber
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
307 PM CDT Fri Sep 18 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-192015-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
307 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Scattered showers and isolated thunderstorms are likely to
develop this evening, mainly north of Highway 30. Primary hazard
will be gusty winds and heavy rain.
Another round of heavy rain with embedded thunder is likely north
of I-80 late tonight. A Flood Watch has been issued for much of
east-central Iowa and far northwestern Illinois through Saturday.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
Additional rounds of rain with embedded thunderstorms are
expected through Sunday. The primary risks with each round will
be lightning and heavy rainfall. Rises on area tributary rivers
may result in flooding.
There is a Marginal Risk, Level 1 out of 5, for isolated severe
storms Saturday afternoon and evening. The primary severe hazard
will be damaging winds.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible tonight and Saturday.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
137 PM CDT Fri Sep 18 2026
LMZ521-522-541>543-191845-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
137 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...This Afternoon and Tonight
There is a chance of thunderstorms tonight. The thunderstorms may
pose a hazard for mariners.
Conditions hazardous to small craft are expected south of Algoma
late tonight. A Small Craft Advisory is in effect.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Chances of thunderstorms continue into Saturday morning. The
thunderstorms may pose a hazard for mariners.
Conditions hazardous to small craft are expected at times from
Saturday through Monday. A Small Craft Advisory is currently in
effect through Saturday evening.
$$
Kurimski
Hazardous Weather Outlook
National Weather Service Green Bay WI
137 PM CDT Fri Sep 18 2026
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-191845-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
137 PM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...This Afternoon and Tonight
Moderate to heavy rainfall is likely over central and east-
central Wisconsin. Localized flooding will be possible. There
will also be a chance of thunderstorms tonight, but severe weather
is not expected.
There will be an increased risk of rip currents along Lake
Michigan beaches south of Algoma late tonight. A Beach Hazards
Statement is in effect.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
The chance of thunderstorms will continue on Saturday morning over
east-central Wisconsin. The risk of severe weather is low.
There will be an increased risk of rip currents along Lake
Michigan beaches south of Algoma through Saturday evening. A
Beach Hazards Statement is in effect.
The rip current risk will also be high from Sunday into Monday.
.SPOTTER INFORMATION STATEMENT...
Spotters are requested to report any flooding or rainfalls over 1
inch to the National Weather Service in Green Bay.
$$
Hazardous Weather Outlook
National Weather Service La Crosse WI
237 AM CDT Fri Sep 18 2026
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-191145-
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-
237 AM CDT Fri Sep 18 2026
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...Today through Tonight
Heavy rainfall leading to areal and river flooding primarily on
flashier rivers is possible today. The heaviest rainfall is
forecast on this evening through tonight with the more probable
area for highest amounts to occur being along and south of
Interstate 90 and north of US Highway 18, where a Flood Watch is
in effect.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Heavy rainfall leading to areal and river flooding primarily on
flashier rivers continues into the weekend. The heaviest rainfall
is forecast through Saturday with the more probable area for
highest amounts to occur being along and south of Interstate 90
and north of US Highway 18, where a Flood Watch is in effect
through early Saturday afternoon.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
A webinar is scheduled for today, September 18, at 1 PM CDT.
$$
