Extensive flooding occurred late May and into June across eastern Iowa, northwest Illinois, and northeast Missouri. The last half of May was very wet with 5-8 inches of rain falling over the region. This combined with saturated soils, brought many rivers above Moderate to Major flood levels. Many climate sites only saw 3 days of no precipitation from May 16th to May 31st.
The Wapsipinicon, Iowa, Skunk, Des Moines, Rock, and Green Rivers all recorded a preliminary Top 10 crest on record. The main stem Mississippi also crested again in late May / early June, with sites from Le Claire LD 14 on downstream recording a Top 10 crest.
Several significant flood events also occurred in March - Early May 2019 due to snowmelt, heavy rain, and saturated soil.

Flood in ROCK ISLAND, ILLINOIS
From 01-MAY-19 00:00:00 to 12-MAY-19 22:00:00 (CST-6)
Location: ILLINOIS CITY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Illinois City Lock and Dam 16 began the month above its major flood stage of 18 feet. The river would rise to a crest of 24.33 feet on May 3rd. This crest is the 3rd highest crest for the Mississippi River at Illinois City Lock and Dam 16. The river fell below major flood stage the evening of the 12th.
The Mississippi River at Muscatine (MUSI4) began the month above its major flood stage of 20 feet. The river would rise to a crest of 24.33 feet on May 3rd. This crest is the 4th highest crest for the Mississippi River at Muscatine. The river fell below major flood stage the afternoon of the 11th.

Flood in MERCER, ILLINOIS
From 01-MAY-19 00:00:00 to 14-MAY-19 01:00:00 (CST-6)
Location: NEW BOSTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at New Boston Lock and Dam 17 began the month above its major flood stage of 18.5 feet. The river stage at the beginning of the month was 22.39 feet. The river would rise to a crest of 23.59 feet beginning on May 3rd. This crest is preliminary the 4th highest crest. The river fell below major flood stage around 1 AM on May 14th.

Flood in MERCER, ILLINOIS
From 01-MAY-19 00:00:00 to 14-MAY-19 11:00:00 (CST-6)
Location: NEW BOSTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Keithsburg (KHBI2)  began the month above its major flood stage of 17 feet. The river stage at the beginning of the month was 20.6 feet.  The river would rise to a crest of 21.97 feet May 3rd. This crest is preliminary the 4th highest crest. The river fell below major flood stage around the morning of May 14th.

Flood in WHITESIDE, ILLINOIS
From 01-MAY-19 00:00:00 to 07-MAY-19 22:30:00 (CST-6)
Location: EAST CLINTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Camanche (CMMI4) began the month above its major flood stage of 20.5 feet and also near a crest level of 22.7 feet.  The river stage was falling just after midnight on the first. The river fell below major flood stage late evening on May 7th.

Flood in HENDERSON, ILLINOIS
From 01-MAY-19 00:00:00 to 15-MAY-19 10:00:00 (CST-6)
Location: OQUAWKA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Gladstone Lock and Dam 18 began the month above its major flood stage of 14 feet. The river stage at the beginning of the month was 17.44 feet.  The river would rise to a crest of 1967 feet at 500 AM CST on May 3rd. This crest is preliminarily the 5th highest crest. The river fell below major flood stage around 10 AM on May 15th.

Flood in HENDERSON, ILLINOIS
From 02-MAY-19 16:00:00 to 03-MAY-19 06:00:00 (CST-6)
Location: LOMAX
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Gregory Landing rose above its major flood stage of 25 feet during the after of May 2nd and fell back below major flood stage during the morning hours of May 3rd. The river crested at 25.16 feet at midnight on May 3rd. This was the 3rd highest crest on record.

Flood in ROCK ISLAND, ILLINOIS
From 01-MAY-19 00:00:00 to 09-MAY-19 06:30:00 (CST-6)
Location: CORDOVA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Le Claire (LECI4) began the month above its major flood stage of 13.5 feet and reached a crest level of 16.51 feet at 1030 AM May 2nd.  The river fell below major flood stage in the morning on May 9th.

Flood in HENDERSON, ILLINOIS
From 01-MAY-19 00:00:00 to 31-MAY-19 23:59:00 (CST-6)
Location: GLADSTONE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Burlington (BRLI4)  began the month above its major flood stage of 18 feet and continued to see major flooding through the end of the month, with only one short period on the 17th, where it dipped back down to near 18 feet. The river stage at the beginning of the month was 20.4 feet.  The river would rise to a crest of 23.54 feet on May 3rd. This crest is preliminary the 4th highest crest. The river rose to a even higher crest in early June.

Flood in HANCOCK, ILLINOIS
From 01-MAY-19 00:00:00 to 11-MAY-19 03:00:00 (CST-6)
Location: HAMILTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Keokuk Lock and Dam 19  began the month above its major flood stage of 19 feet. The river stage at the beginning of the month was 21.4 feet.  The river would rise to a crest of 23.5 feet on May 2nd and another higher crest later in the month, in a later storm data entry. The river fell below major flood stage the morning of May 11th.

Flood in CARROLL, ILLINOIS
From 01-MAY-19 00:00:00 to 03-MAY-19 16:30:00 (CST-6)
Location: MARCUS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Bellevue Lock and Dam 12 began the month above its major flood stage of 20 feet. The river stage at the beginning of the month was 20.81 feet. The river fell below major flood stage around 4 PM on May 3rd.

Flood in JO DAVIESS, ILLINOIS
From 01-MAY-19 00:00:00 to 04-MAY-19 22:30:00 (CST-6)
Location: EAST DUBUQUE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Dubuque Lock Dam 11 began the month above the major flood stage of 20.5 feet. The river was at 21.28 feet at midnight and continued to fall below is major flood stage around 6 PM on May 2nd. The Mississippi River at Dubuque (DBQI4) began the month also at major flood stage over 21.5 feet. The river was 22.8 feet at Midnight, and continued to fall below major flood stage by late evening May 4th.

Flood in WHITESIDE, ILLINOIS
From 01-MAY-19 00:00:00 to 06-MAY-19 06:00:00 (CST-6)
Location: FULTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Fulton Lock and Dam 13 began the month above its major flood stage of 20 feet. The river stage at the beginning of the month was 21.81 feet. The river fell below major flood stage around 6 AM on May 6th.

Flood in ROCK ISLAND, ILLINOIS
From 01-MAY-19 00:00:00 to 12-MAY-19 12:00:00 (CST-6)
Location: EAST MOLINE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Mississippi River at Rock Island Lock and Dam 15 began the month above its major flood stage of 18 feet. The river stage at the beginning of the month was 21.10 feet.  The river would rise to a crest of 22.70 feet at 450 PM CST on May 3rd. This crest is a new all time highest crest for the Mississippi River at Rock Island.  This broke the old record of 22.63 feet that had previously occurred on July 9, 1993. The river fell below major flood stage around noon on May 12th.

Flood in ROCK ISLAND, ILLINOIS
From 01-MAY-19 03:30:00 to 07-MAY-19 03:00:00 (CST-6)
Location: ROCK IS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Rock River at Moline rose above its major flood stage of 14.0 early in the morning on May 1st and fell back flood its major flood stage during the early morning hours of the 7th. The river began a long crested at 15.36 feet beginning at 3 PM on May 3rd and ending around 6 AM on May 4th.