Very heavy rain fell across much of eastern Illinois on February 19th and February 20th which caused areal flooding across some areas and major flooding on some rivers.

Flood in GRUNDY, ILLINOIS
From 19-FEB-18 12:00:00 to 28-FEB-18 23:59:00 (CST-6)
Location: LANGHAM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Illinois River.  The river crested at 23.79 feet at Morris on February 22nd, which was the 5th highest stage recorded.  Flood stage at Morris is 16 feet and major stage is 22 feet.  Some water rescues and evacuations occurred on the morning of February 21st.

Flood in IROQUOIS, ILLINOIS
From 20-FEB-18 12:00:00 to 23-FEB-18 12:00:00 (CST-6)
Location: WATSEKA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding was recorded along Sugar Creek near Milford where the river crested at  28.52 feet on February 21st.  This was the second highest stage recorded.  Flood stage is 18 feet and major stage is 26 feet.  Several buildings and homes were affected by the flood waters.

Flood in KANKAKEE, ILLINOIS
From 20-FEB-18 00:00:00 to 21-FEB-18 10:00:00 (CST-6)
Location: KANKAKEE RIVER PK AR
Flood cause: Heavy Rain
Property damage: 1.10M
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads in Kankakee County were flooded and several roads were closed.  Storm total rainfall amounts included 5.73 inches in St. Anne and 3.39 inches in Kankakee.  Approximately 110 homes throughout the county were affected by flood waters.

Flood in LA SALLE, ILLINOIS
From 20-FEB-18 00:00:00 to 28-FEB-18 23:59:00 (CST-6)
Location: SENECA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Illinois River.  The river crested at 471.49 feet at Ottawa on February 22nd, which was the 3rd highest stage recorded.  Flood stage at Ottawa is 463 feet and major stage is 469 feet.  Moderate flooding occurred on the Illinois River near La Salle with a crest of 30.61 feet on February 23rd.  Flood stage is 20 feet and major stage is 31 feet.  The city of Marseilles issued a mandatory evacuation for residents south of the Illinois and Michigan Canal and east of Main Street.  A nursing home near the Illinois River evacuated its 47 residents.

Flood in IROQUOIS, ILLINOIS
From 20-FEB-18 12:00:00 to 28-FEB-18 23:59:00 (CST-6)
Location: PAPINEAU
Flood cause: Heavy Rain
Property damage: 1.50M
Crop damage: 0.00K
Reported by: Emergency Manager

Major flooding occurred along the Iroquois River.  The river crested at 26.06 feet at Iroquois on February 22nd, which was the second highest crest on record.  Flood stage at Iroquois is 18 feet and major stage is 25 feet.  The river crested at 20.59 feet at Chebanse on February 24th, which was also the second highest crest on record.  Flood stage at Chebanse is 16 feet and major stage is 20 feet.
In the city of Watseka, over 100 homes suffered some kind of water damage from the flooding.  Businesses and ground floor apartments were also flooded.  Numerous roads were closed.  Some residents had to be rescued by boats.  The emergency manager said this flooding was likely the worst the city has seen.

Flood in IROQUOIS, ILLINOIS
From 20-FEB-18 00:00:00 to 21-FEB-18 10:00:00 (CST-6)
Location: CHEBANSE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads in Iroquois County were flooded and several roads were closed.  Storm total rainfall amounts included 5.20 inches 5 miles east of Ashkum and 4.35 inches 2 miles northwest of Watseka.

Thunderstorm Wind in LAKE, ILLINOIS
From 20-FEB-18 13:04:00 to 20-FEB-18 13:04:00 (CST-6)
Location: WAUKEGAN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down.

Flood in OGLE, ILLINOIS
From 20-FEB-18 15:42:00 to 20-FEB-18 23:00:00 (CST-6)
Location: ROCHELLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several roads in Rochelle were closed due to flooding.

Flood in WILL, ILLINOIS
From 20-FEB-18 00:00:00 to 20-FEB-18 18:00:00 (CST-6)
Location: PEOTONE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A 52 year old woman drown inside a car that was found submerged in a flooded ditch.

Flash Flood in WILL, ILLINOIS
From 19-FEB-18 23:30:00 to 20-FEB-18 06:00:00 (CST-6)
Location: FAITHORN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Route 1 between Crete Monee Road to the north and Elms Court to the south was flooded and impassible with flowing water estimated to be one foot deep.  Storm total rainfall amounts included 4.37 inches 4 miles south southeast of Crete; 4.35 inches in Monee and 4.10 inches in Peotone.