A strong spring storm system brought multiple rounds of thunderstorms and heavy rain to the southeast half of Missouri during the last couple days of April.  Rainfall totals surpassed nine inches in some locations and this led to historic flooding along some of the tributaries of the Missouri and Mississippi Rivers. Areas along the Meramec River were especially hard hit as new records were set at Steelville, Sullivan, and Eureka. The previous records had just recently been set during the late December flooding of 2015. Two major highways, I-44 and I-55 were shut down for a number of days due to the record river flooding from this event.

Flood in LINCOLN, MISSOURI
From 01-MAY-17 00:00:00 to 02-MAY-17 20:00:00 (CST-6)
Location: MOSCOW MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Cuivre River crested about 2 feet over major stage at Old Monroe due to the heavy rainfall. Numerous roads were flooded due to the river flooding.

Flood in ST. LOUIS, MISSOURI
From 01-MAY-17 00:00:00 to 04-MAY-17 20:00:00 (CST-6)
Location: ALLENTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Meramec River at Eureka and Valley Park crested well above major flood stage in the late evening hours of May 2nd/early morning hours of May 3rd, due to the heavy rainfall. A number of roads were closed due to the river flooding including I-44, Highway 141 where it goes under I-44.

Flood in JEFFERSON, MISSOURI
From 01-MAY-17 00:00:00 to 05-MAY-17 20:00:00 (CST-6)
Location: HOENE SPG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Meramec and Big Rivers remained above major flood stage through May 5th due to the heavy rainfall. A number of roads were closed due to the river flooding.

Flood in COLE, MISSOURI
From 01-MAY-17 00:00:00 to 01-MAY-17 22:00:00 (CST-6)
Location: JEFFERSON CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Moreau River remained above major flood stage through the afternoon hours on May 1st due to very heavy rain over the river basin. A number of secondary roads were closed due to the river flooding. Also, the river rose to the bottom of Tanner Bridge. No structures were affected by the flooding.

Flood in CRAWFORD, MISSOURI
From 01-MAY-17 00:00:00 to 02-MAY-17 20:00:00 (CST-6)
Location: FOX SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Meramec River rose well above major flood stage at Steelville due to very heavy rain that fell across the river basin. Numerous roads along the flow of the river were flooded as well as a number of camp grounds, as well as, a couple of hotels.

Flood in FRANKLIN, MISSOURI
From 01-MAY-17 00:00:00 to 03-MAY-17 20:00:00 (CST-6)
Location: SULLIVAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Meramec River at Pacific rose above major stage during the day on May 1st.  Also, the Bourbeuse River at Union crested 3 feet above major stage during the day on May 2nd. Numerous roads were flooded, as well as, several camp grounds and parks. In Pacific, numerous homes and businesses were flooded.

Flood in OSAGE, MISSOURI
From 01-MAY-17 18:00:00 to 04-MAY-17 18:00:00 (CST-6)
Location: GASCONDY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Gasconade River at Rich Fountain went above major flood stage, with a record crest of 37.46 feet on May 2nd, due to very heavy rain over the river basin in late April. A number of secondary roads were closed due to the river flooding.

Flood in GASCONADE, MISSOURI
From 01-MAY-17 18:00:00 to 04-MAY-17 18:00:00 (CST-6)
Location: MT STERLING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Gasconade River at Rich Fountain went above major flood stage, with a record crest of 37.46 feet on May 2nd, due to very heavy rain over the river basin in late April. A number of secondary roads were closed due to the river flooding. Also, several homes and businesses were flooded north of Mount Sterling.