9 products issued by NWS for: Fox Lake IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 146 PM CDT Sat Apr 18 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-191900- 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- 146 PM CDT Sat Apr 18 2026 /246 PM EDT Sat Apr 18 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... Elevated Frost Risk overnight. DISCUSSION... Locally sub-freezing temperatures are possible tonight in outlying areas, with many locations outside of the urban corridor dropping into the low to mid 30s. Sheltered areas will be susceptible to frost formation. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Sunday Night... Significant Frost and Freeze Risk. Friday... Limited Thunderstorm Risk. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$
Freeze Warning
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 152 AM CDT Sun Apr 19 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-106>108-INZ001-002- 010-011-019-191700- /O.UPG.KLOT.FZ.A.0001.260420T0500Z-260420T1400Z/ /O.NEW.KLOT.FZ.W.0001.260420T0500Z-260420T1400Z/ /O.CON.KLOT.FR.Y.0001.000000T0000Z-260419T1400Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper- Benton- Including the cities of Valparaiso, Carol Stream, Beecher, Hammond, Crystal Lake, Oregon, Fairbury, Naperville, Crete, Wheaton, McHenry, Waukegan, Kankakee, Gary, Oxford, Minooka, Bolingbrook, Paxton, Plainfield, Yorkville, Mendota, Merrillville, La Salle, Plano, Gibson City, Roselawn, Dixon, Watseka, Coal City, Morocco, Bradley, Oswego, Gurnee, Woodstock, Gilman, Mokena, Ottawa, Lombard, Rochelle, Elgin, Manhattan, Byron, Dwight, Portage, DeKalb, DeMotte, Peotone, Algonquin, Mundelein, Kentland, Belvidere, Rockford, Marseilles, Streator, Bourbonnais, Morris, Aurora, Channahon, Chesterton, Downers Grove, Fowler, Wilmington, Sycamore, Rensselaer, Joliet, Pontiac, and Buffalo Grove 152 AM CDT Sun Apr 19 2026 /252 AM EDT Sun Apr 19 2026/ ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT /10 AM EDT/ THIS MORNING... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/ TONIGHT TO 9 AM CDT /10 AM EDT/ MONDAY... * WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected, with the coldest conditions across interior northern Illinois. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, until 9 AM CDT /10 AM EDT/ this morning. For the Freeze Warning, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Frost Advisory
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 152 AM CDT Sun Apr 19 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-106>108-INZ001-002- 010-011-019-191700- /O.UPG.KLOT.FZ.A.0001.260420T0500Z-260420T1400Z/ /O.NEW.KLOT.FZ.W.0001.260420T0500Z-260420T1400Z/ /O.CON.KLOT.FR.Y.0001.000000T0000Z-260419T1400Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper- Benton- Including the cities of Valparaiso, Carol Stream, Beecher, Hammond, Crystal Lake, Oregon, Fairbury, Naperville, Crete, Wheaton, McHenry, Waukegan, Kankakee, Gary, Oxford, Minooka, Bolingbrook, Paxton, Plainfield, Yorkville, Mendota, Merrillville, La Salle, Plano, Gibson City, Roselawn, Dixon, Watseka, Coal City, Morocco, Bradley, Oswego, Gurnee, Woodstock, Gilman, Mokena, Ottawa, Lombard, Rochelle, Elgin, Manhattan, Byron, Dwight, Portage, DeKalb, DeMotte, Peotone, Algonquin, Mundelein, Kentland, Belvidere, Rockford, Marseilles, Streator, Bourbonnais, Morris, Aurora, Channahon, Chesterton, Downers Grove, Fowler, Wilmington, Sycamore, Rensselaer, Joliet, Pontiac, and Buffalo Grove 152 AM CDT Sun Apr 19 2026 /252 AM EDT Sun Apr 19 2026/ ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT /10 AM EDT/ THIS MORNING... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/ TONIGHT TO 9 AM CDT /10 AM EDT/ MONDAY... * WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected, with the coldest conditions across interior northern Illinois. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, until 9 AM CDT /10 AM EDT/ this morning. For the Freeze Warning, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Flood Warning
Flood Statement
National Weather Service Milwaukee/Sullivan WI
1025 PM CDT Sat Apr 18 2026
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Fox River Lower At Waukesha affecting Waukesha County.
Fox River Lower Near New Munster affecting Kenosha and Lake
Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Even 6 inches of fast-moving flood water can knock you off your feet
and a depth of 2 feet will float your car. Never try to walk, swim,
or drive through such swift water. If you come upon flood waters,
stop, turn around and go another way.
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Sunday morning at 1030 AM CDT.
&&
ILC097-WIC059-191530-
/O.CON.KMKX.FL.W.0015.000000T0000Z-000000T0000Z/
/NMSW3.3.ER.260404T0200Z.260420T0000Z.000000T0000Z.NO/
1025 PM CDT Sat Apr 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Major flooding is occurring and major flooding is forecast.
* WHERE...Fox River Lower near New Munster.
* WHEN...Until further notice.
* IMPACTS...At 15.0 feet, Highway 50 is closed due to floodwaters
over the highway. There is widespread flooding in the Town of
Wheatland and Village of Salem Lakes. Floodwaters are into the
lower levels of some homes in those areas along Riverside Drive,
Shorewood Drive, 101st Street and Shorewood Terrace.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Saturday the stage was 15.0 feet.
- Bankfull stage is 10.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 PM CDT Saturday was 15.0 feet.
- Forecast...The river is expected to rise to a crest of 15.5
feet tomorrow evening.
- Flood stage is 11.0 feet.
- Flood History...This crest compares to a previous crest of
15.2 feet on 06/15/2008.
- http://www.weather.gov/safety/flood
&&
River forecasts are available for some but not all river gaging
locations. The 7 day river forecast takes into account past
precipitation, soil moisture conditions, and predicted
precipitation for the basin. Precipitation is for the next 24 hours
in the future from April through September and for 48 hours in the
future from October through March.
(Stages in ft.) Bank- Latest Forecast stages
- Flood full observed ...for 1 am...
Location stage stage stage/time Mon Tue Wed Thu
New Munster 11.0 10.0 14.99 10 pm 4/18 15.5 15.4 14.9 14.3
- Highest 24 hour change
- observed in river stage
- stage in (ft.) up to Highest stage
- the last latest observed forecast in
- 7 days stage next 7 days
New Munster 14.99 10 pm 4/18 0.78 15.50 1 pm 4/20
&&
LAT...LON 4262 8830 4262 8817 4255 8814 4246 8814
4246 8822 4255 8824
$$
WAGNER
Flood Warning
Flood Statement
National Weather Service Chicago IL
840 PM CDT Sat Apr 18 2026
...The Flood Warning continues for the following rivers in
Illinois...
Fox River at Dayton affecting La Salle County.
Fox River at Montgomery affecting Kane and Kendall Counties.
Fox River at Algonquin Lock & Dam tailwater affecting Kane,
McHenry and Lake IL Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based almost entirely on observed precipitation
as little to no additional precipitation is currently expected over
the next 24 to 48 hours.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday afternoon.
&&
ILC089-097-111-191945-
/O.CON.KLOT.FL.W.0016.000000T0000Z-000000T0000Z/
/AFBI2.2.ER.260414T1200Z.260422T1800Z.000000T0000Z.NO/
840 PM CDT Sat Apr 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is occurring and forecasted to continue.
* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
St. Charles, including the Algonquin Lock & Dam tailwater gauge.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, Structures threatened along River Street,
Johnson Street, and Maiden Lane in East Dundee. North Harrison
Street threatened near Riverside Park in Algonquin. Washington
Street threatened in Carpentersville. Water Street, Edwards
Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road
threatened in Elgin. Low-lying areas of Festival Park are
threatened in Elgin.
* ADDITIONAL DETAILS...
- At 7:30 PM CDT Saturday the stage was 11.2 feet.
- Forecast...The river is expected to continue gradually rising
into next week. At this point, it is expected to remain just
below Major Flood Stage.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4238 8829 4234 8818 4223 8813 4194 8827
4195 8838 4219 8830
$$
Borchardt
Flood Warning
Flood Statement
National Weather Service Chicago IL
835 PM CDT Sat Apr 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Des Plaines River at Lincolnshire affecting Cook and Lake IL
Counties.
...The Flood Warning continues for the following rivers in
Illinois...
Des Plaines River near Des Plaines affecting Cook County.
Des Plaines River near Russell affecting Lake IL County.
Des Plaines River near Gurnee affecting Lake IL County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based almost entirely on observed precipitation
as little to no additional precipitation is currently expected over
the next 24 to 48 hours.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday afternoon.
&&
ILC097-191945-
/O.CON.KLOT.FL.W.0017.000000T0000Z-000000T0000Z/
/GUNI2.2.ER.260415T0856Z.260419T1200Z.260424T0300Z.NO/
835 PM CDT Sat Apr 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is occurring and forecasted to continue.
* WHERE...Des Plaines River from US-41 in Gurnee downstream to
Townline Road in Vernon Hills, including the Gurnee gauge.
* WHEN...Until further notice.
* IMPACTS...At 11.0 feet, US-41 (Skokie Highway) threatened near the
river in Gurnee. Mundelein Water Reclamation Facility property is
threatened near Libertyville.
* ADDITIONAL DETAILS...
- At 7:30 PM CDT Saturday the stage was 10.6 feet.
- Forecast...The river is expected to rise to a crest near 10.9
feet tomorrow morning, just below Major Flood Stage. It is
then expected to fall through next week.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4239 8796 4239 8787 4230 8791 4224 8788
4224 8797 4230 8800
$$
Borchardt
Flood Warning
Flood Statement
National Weather Service Chicago IL
835 PM CDT Sat Apr 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Des Plaines River at Lincolnshire affecting Cook and Lake IL
Counties.
...The Flood Warning continues for the following rivers in
Illinois...
Des Plaines River near Des Plaines affecting Cook County.
Des Plaines River near Russell affecting Lake IL County.
Des Plaines River near Gurnee affecting Lake IL County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based almost entirely on observed precipitation
as little to no additional precipitation is currently expected over
the next 24 to 48 hours.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday afternoon.
&&
ILC097-191945-
/O.CON.KLOT.FL.W.0018.000000T0000Z-000000T0000Z/
/RUSI2.2.ER.260415T1155Z.260419T0600Z.000000T0000Z.NO/
835 PM CDT Sat Apr 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is occurring and forecasted to continue.
* WHERE...Des Plaines River from IL/WI state line downstream to
US-41 in Gurnee, including the Russell gauge.
* WHEN...Until further notice.
* IMPACTS...At 9.5 feet, Residential structures threatened along
Russell Road between the river and Kilbourne Road. Industrial
parking lots threatened along Kilbourne Road.
* ADDITIONAL DETAILS...
- At 7:30 PM CDT Saturday the stage was 9.6 feet.
- Forecast...The river is expected to remain nearly steady
through tomorrow before gradually falling next week.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4251 8797 4250 8787 4247 8789 4239 8787
4239 8796 4247 8799
$$
Flood Warning
Flood Statement
National Weather Service Chicago IL
835 PM CDT Sat Apr 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Des Plaines River at Lincolnshire affecting Cook and Lake IL
Counties.
...The Flood Warning continues for the following rivers in
Illinois...
Des Plaines River near Des Plaines affecting Cook County.
Des Plaines River near Russell affecting Lake IL County.
Des Plaines River near Gurnee affecting Lake IL County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based almost entirely on observed precipitation
as little to no additional precipitation is currently expected over
the next 24 to 48 hours.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday afternoon.
&&
ILC031-097-191945-
/O.EXT.KLOT.FL.W.0020.000000T0000Z-000000T0000Z/
/LDRI2.3.ER.260416T0400Z.260420T0000Z.260423T1630Z.NO/
835 PM CDT Sat Apr 18 2026
...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is occurring and Major flooding is
forecasted.
* WHERE...Des Plaines River from Townline Road in Libertyville
downstream to Palatine Road in Prospect Heights, including the
Lincolnshire gauge.
* WHEN...Until further notice.
* IMPACTS...At 16.0 feet, Numerous structures threatened along US-45
(Milwaukee Avenue) between IL-22 (Half Day Road) and Deerfield
Road. Access route threatened for numerous residences near US-45
(Milwaukee Avenue) and Deerfield Road. IL-60 (Townline Road)
threatened near the river.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Saturday the stage was 14.9 feet.
- Forecast...The river is expected to rise to a crest near 15.7
feet (Major Flood Stage) tomorrow evening. It will then
slowly fall through next week.
- Flood stage is 12.5 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4224 8797 4224 8788 4212 8784 4212 8794
$$
Flood Warning
Flood Warning
National Weather Service Chicago IL
220 PM CDT Sat Apr 18 2026
ILC097-111-251800-
/O.NEW.KLOT.FA.W.0003.260418T1920Z-260425T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lake IL IL-McHenry IL-
220 PM CDT Sat Apr 18 2026
...FLOOD WARNING IN EFFECT UNTIL 1 PM CDT SATURDAY...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...A portion of northeast Illinois, including the following
counties, Lake IL and McHenry.
* WHEN...Until 100 PM CDT Saturday Apr 25.
* IMPACTS...Numerous roads, yards, structures, and park land are
expected to flood along the Fox River Chain of Lakes.
* ADDITIONAL DETAILS...
- At 145 PM CDT, River gauges along the Fox River Chain of
Lakes indicated slowly rises water levels due to recent
rainfall across the area.
- Water levels may near major flood stage by the middle of next
week and remain above flood stage potentially for several
weeks. Impacts from this flood may be similar to those
experienced in May of 1973, October of 1986, or June of 2008.
- Some locations that will experience flooding include areas
along the Fox River Chain of Lakes, including Nippersink
Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie,
Channel Lake, and Lake Catherine.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Now is the time to prepare for flooding that hasn`t occurred in
several years. Residents living along the immediate shorelines of
the Fox River Chain of Lakes need to take precautions to protect
property including moving valuables to higher ground.
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4250 8810 4250 8809 4245 8809 4238 8813
4234 8818 4238 8829 4242 8820 4246 8820
4250 8820 4250 8819
$$