Island Lake, IL Severe Weather Alertstar_ratehome

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT
SATURDAY...

* WHAT...Southwest winds to 25 kt becoming northwest Saturday
morning and significant waves to 5 ft.

* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.

* WHEN...Until 10 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.

&&

TORNADO WATCH 131 REMAINS VALID UNTIL 11 PM CDT THIS EVENING FOR
THE FOLLOWING AREAS

THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS

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

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 2 AM CDT SATURDAY FOR
BOONE, LAKE IL AND MCHENRY COUNTIES...

At 926 PM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain with rates in exceed of 1 inch
per 30 minutes. Multiple reports of roadway flooding have been
received from areas near Harvard. Up to 2 inches of rain have
fallen. Flash flooding is already occurring.

HAZARD...Flash flooding.

SOURCE...Radar and automated gauges.

IMPACT...Rapid-onset flooding of creeks, streams, drainage
ditches, streets, underpasses, low-lying areas, and
other poor drainage areas.

Some locations that will experience flash flooding include...
Waukegan, Buffalo Grove, Crystal Lake, North Chicago, Gurnee,
Mundelein, Algonquin, Highland Park, Lake in the Hills, Round Lake
Beach, McHenry, Belvidere, Vernon Hills, Woodstock, Zion, Huntley,
Loves Park, Grayslake, Libertyville and Lake Zurich.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means rapid-onset flooding is imminent or may
already be occurring. Persons along creeks, drainage ditches, and
other waterways should take immediate precautions to protect life
and property.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&


FLASH FLOOD...RADAR AND GAUGE INDICATED;
EXPECTED RAINFALL RATE...1 INCH IN 30 MINUTES

...FLOOD WATCH REMAINS IN EFFECT UNTIL 5 AM CDT /6 AM EDT/
SATURDAY...

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Much of northern and central Illinois and extreme
northwest Indiana.

* WHEN...Until 5 AM CDT Saturday.

* IMPACTS...Creeks and streams may rise out of their banks. Ongoing
river flooding may worsen. Flooding may occur in poor drainage and
urban areas. Roads and streets may be flooded. Area creeks and
streams are already elevated, increasing the risk of flooding due
to additional rainfall.

* ADDITIONAL DETAILS...
- A line of thunderstorms, some capable of producing rainfall
rates of up to 2 inches per hour, will move across the area
this evening into the early overnight hours. Despite the
expected relatively fast storm movement, anomalously high
atmospheric moisture content will support high rainfall
rates. In many areas, soil moisture remains very high,
including near the Illinois-Wisconsin border where nearly
saturated soils exist due to recent heavy rainfall. While
many areas may see lighter accumulations less than 0.5
inches, soils will be very sensitive to rainfall. Areas near
and downstream of heavy rainfall, particularly urban areas
and locations in far northern Illinois, may see flash
flooding and river flooding impacts, some locally
significant.
- 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 WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and major flooding is
forecast.

* WHERE...Fox River Lower near New Munster.

* WHEN...Until further notice.

* IMPACTS...At 14.0 feet, There is flooding of the lower levels of
homes in the Town of Wheatland and Village of Salem Lakes areas
long Riverside Drive, Shorewood Drive, 101st Street and Shorewood
Terrace.

* ADDITIONAL DETAILS...
- At 3:00 PM CDT Friday the stage was 14.0 feet.
- Bankfull stage is 10.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 3:00 PM CDT Friday was 14.0 feet.
- Forecast...The river is expected to rise to a crest of 14.2
feet just after midnight tonight.
- Flood stage is 11.0 feet.
- Flood History...This crest compares to a previous crest of
14.5 feet on 04/20/2013.
- 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 7 pm...
Location        stage stage     stage/time    Sat  Sun  Mon  Tue
New Munster     11.0  10.0  13.97 3 pm 4/17   13.8 13.4 13.1 12.6

-                    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     13.97 3 pm 4/17         1.23       14.20 1 am 4/18


&&

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and moderate flooding is
forecast.

* 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 11.0 feet, Structures threatened near Elgin Avenue
and Corey Street south of East Dundee. Lincoln Avenue threatened
in West Dundee. Filip Street and Fox River Drive threatened in
Algonquin. Fox River Trail threatened south of downtown Elgin.
At 11.5 feet, Residences threatened along Oceola Drive in
Algonquin. A few residences threatened along McBridge Street in
Elgin. Jayne Street and Beach Drive threatened in Algonquin. River
Street threatened in East Dundee. Jerusha Avenue threatened in
Elgin. Fox River Trail threatened between East Dundee and Elgin.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 10.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:30 AM CDT Friday was 10.5 feet. The river
climbed to moderate flood stage this morning.
- Forecast...The river is expected to crest near 11.5 feet
early next week.
- Flood stage is 9.5 feet.
- Flood History...This crest compares to a previous crest of
11.8 feet on 05/23/2020.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and moderate flooding is
forecast.

* 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 14.0 feet, Residences threatened east of the river
just south of IL-22 (Half-Day Road). Lincolnshire Drive threatened
at Wiltshire Lane.
At 15.0 feet, Structures threatened along IL-22 (Half-Day Road)
just east of the river. Multiple structures threatened near and
west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield
Road threatened near the river. Multiple trails inundated in
Half-Day Forest Preserve.

* ADDITIONAL DETAILS...
- At 9:45 AM CDT Friday the stage was 13.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Friday was 13.7 feet. The rate of climb
due to earlier rainfall has slowed.
- Forecast...The river is expected to crest near 14.5 feet on
Sunday due to forecasted rainfall today and tonight.
- Flood stage is 12.5 feet.
- Flood History...This crest compares to a previous crest of
14.4 feet on 05/01/2020.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.

* 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 9.0 feet, Kilbourne Road and Emerald Avenue
threatened near Grand Avenue in Gurnee.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 9.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:30 AM CDT Friday was 9.3 feet.
- Forecast...The river is expected to rise to crest near 9.5
feet on Sunday due to forecasted rainfall today and tonight.
- Flood stage is 7.0 feet.
- Flood History...This crest compares to a previous crest of
9.7 feet on 06/28/2018.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* 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 8.0 feet, Agricultural and park land is inundated
near the river. Residential property is threatened near the river.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 8.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:30 AM CDT Friday was 8.6 feet.
- Forecast...The river is expected crest near 8.7 feet
overnight tonight.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood

&&