A composite outflow boundary extending from the Kansas City area towards southeast Missouri was a focus for new development from the evening hours of June 25th through June 26th. There were numerous reports of damaging winds and flash flooding with this event, as well as a tornado.

Flash Flood in BOONE, MISSOURI
From 25-JUN-21 17:50:00 to 26-JUN-21 05:30:00 (CST-6)
Location: RUCKER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Another round of heavy rain fell across Boone County, less than 12 hours after the flash flood event from June 24th through the morning hours of June 25th, where up to 7 inches of rain fell. Up to an additional 2 to 3 inches fell causing another round of flash flooding across the county. Numerous roads were flooded.  One water rescue due to swift water took place about 3 miles northeast of Murry. Another swift water rescue occurred about 2 miles northeast of Easley where two occupants of a vehicle were trapped by the flood waters.  Two vehicles were stuck in swift water from Rocky Fork Creek on North Creekland Drive, just north of intersection with East Calvert Hill Road, so the occupants had to be rescued.  Three miles northeast of McBaine, water was flooding a residence, so fire fighters had to rescue the two occupants and their dog.  A section of road was washed out about 5 miles east southeast of Harrisburg.  No injuries were reported.

Flash Flood in MARION, MISSOURI
From 25-JUN-21 20:00:00 to 26-JUN-21 00:30:00 (CST-6)
Location: HANNIBAL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Up to four inches of rain in a short amount of time caused flash flooding in Hannibal, especially for areas along Bear Creek. Numerous streets in the area were flooded due to Bear Creek rising well above its banks.

Flash Flood in WARREN, MISSOURI
From 25-JUN-21 18:52:00 to 26-JUN-21 06:34:00 (CST-6)
Location: NEW TRUXTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Up to five inches of rain fell in a short amount of time causing flash flooding. Numerous roads were flooded including the intersection of Highway U and Booneslick Road, at the intersection of Highway B and Veterans Memorial Parkway and on State Highway 47 at Willow Road. A swift water rescue had to be performed on Township Line Road near where it crosses Big Creek. Another water rescue took place at the intersection of Highway W and Powerline Road.  No injuries were reported.

Flash Flood in LINCOLN, MISSOURI
From 25-JUN-21 19:20:00 to 26-JUN-21 06:34:00 (CST-6)
Location: HAWK PT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Up to five inches of rain fell in a short amount of time causing flash flooding.  Several roads were flooded including Highway J west of Troy.  Two water rescues were performed. One about 4 miles west of Winfield and another one about 4 miles west northwest of Old Monroe.  No injuries were reported.

Flash Flood in AUDRAIN, MISSOURI
From 25-JUN-21 18:31:00 to 26-JUN-21 05:30:00 (CST-6)
Location: ORTIZ
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Up to 4 inches of rain fell in a short amount of time causing flash flooding. Numerous roads were flooded across the southern half of the county.

Flash Flood in COLE, MISSOURI
From 25-JUN-21 20:04:00 to 26-JUN-21 05:30:00 (CST-6)
Location: MARION
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

After up to three inches of rain fell from late evening on June 24th through the early morning hours of June 25th, another round of heavy rain developed and moved across Cole County. Up to an additional 4 inches of rain fell causing flash flooding. Numerous roads were flooded across the northern half of the county, including portions of Walnut, West Miller, Waverly, Virginia and Kansas Streets in central portions of Jefferson City. Numerous water rescues were performed on the west side of town as well as in the central sections of town after a number of vehicles were driven into the flood waters.  No injuries were reported.

Thunderstorm Wind in BOONE, MISSOURI
From 25-JUN-21 16:23:00 to 25-JUN-21 16:45:00 (CST-6)
Location: COLUMBIA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew down numerous power lines, tree limbs and trees through out town. A large tree was blown down at the intersection of Washington Avenue and Dysart Street. On the northeast side of town a tree was blown down onto a mobile home causing considerable damage. No injuries were reported.