An unseasonably strong storm system impacted the region January 10-11. Heavy rainfall, flooding, isolated damaging winds, a couple tornadoes, and gusty non-thunderstorm winds impacted southeast Missouri during this time. The bulk of the event occurred overnight and into the morning hours on the 11th. Rainfall totals ranged from 2 to 5 inches, which resulted in isolated flash flooding. The most significant tornado occurred in the Jackson area, which was rated EF-2. Strong to severe convection over the Ozark Mountains moved east into an environment of very strong wind shear over southeast Missouri, with 850 mb winds near 60 knots. The convection maintained intensity after it crossed the Mississippi River during the early morning hours. Tremendous wind shear (winds of 50 knots down to 1500 feet above ground level) and strong forcing associated with a potent 500 mb shortwave compensated for weak instability. Some of the strong low-level winds reached the surface in the form of gradient wind gusts to around 40 mph. A weak surface low formed along a cold front over southwest Arkansas, then deepened as it tracked northeast across the Missouri Bootheel and into the lower Ohio Valley on the morning of the 11th.

Tornado in BOLLINGER, MISSOURI
From 11-JAN-20 00:52:00 to 11-JAN-20 00:53:00 (CST-6)
Location: PATTON JCT
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado briefly touched down along Highway 72. The workshop portion of a home-workshop combination building was destroyed. The roof was torn off a nearby barn. Debris was thrown to the east about 100 yards, to the south about 100 feet, and to the west less than 20 feet. A few trees were uprooted. Peak winds were estimated near 105 mph.

Tornado in CAPE GIRARDEAU, MISSOURI
From 11-JAN-20 01:46:00 to 11-JAN-20 01:55:00 (CST-6)
Location: JACKSON
Tornado F-scale: EF2
Property damage: 750.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down just south of U.S. Highway 61, where trees and small outbuildings were damaged. The tornado crossed Highway 61 and produced damage to several businesses. Windows were broken out, and damage occurred to roofs. One business was destroyed. A tire store was heavily damaged as the tornado was at its peak intensity. The back was wall was blown out, and much of the roof was destroyed and thrown several hundred yards. Light concrete and styrofoam blew onto Interstate 55, which was closed for a brief time until cleanup was complete. East of Interstate 55, several barns and outbuildings were damaged or destroyed. Numerous trees were uprooted or snapped along the way. The path may have extended farther east of State Route 177 near the Mississippi River, but flooding prevented surveying. Peak winds were estimated near 125 mph near U.S. Highway 61.

Flash Flood in WAYNE, MISSOURI
From 11-JAN-20 00:30:00 to 11-JAN-20 07:45:00 (CST-6)
Location: PIEDMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water overtopped a few bridges around Piedmont, including Missouri Highway 34 at two different locations over McKenzie Creek. A cocorahs observer measured a 24-hour rainfall total of 3.62 inches near Patterson.

Flash Flood in CARTER, MISSOURI
From 11-JAN-20 03:00:00 to 11-JAN-20 05:00:00 (CST-6)
Location: FREMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed across the county due to water over them, including portions of Routes Z, K, and M. A cocorahs observer several miles northwest of Ellsinore measured 3.64 inches in a 24-hour period.

Flash Flood in RIPLEY, MISSOURI
From 11-JAN-20 03:00:00 to 11-JAN-20 05:00:00 (CST-6)
Location: GLENN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed across the county, including portions of Route H and Route 142 in the southeast part of the county and Routes NN and K in the northeast part of the county. A cocorahs observer several miles north-northeast of Bennett measured 3.97 inches in 24 hours.

Flash Flood in CAPE GIRARDEAU, MISSOURI
From 11-JAN-20 03:40:00 to 11-JAN-20 09:00:00 (CST-6)
Location: DELTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roads were impassable and flooded in the southern part of Cape Girardeau County, including State Route N and County Road 244, Highway P between Randles and Delta, and County Road 236.

Flash Flood in PERRY, MISSOURI
From 11-JAN-20 09:07:00 to 11-JAN-20 11:00:00 (CST-6)
Location: BIEHLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Flooding of county roads was reported around Biehle. The co-operative observer at the Perryville water plant measured 3.03 inches in 24 hours.

Flood in BOLLINGER, MISSOURI
From 10-JAN-20 18:40:00 to 11-JAN-20 06:00:00 (CST-6)
Location: SEDGEWICKVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous low water crossings were flooded from previous rainfall earlier in the day, including county roads 356, 366, 364, 234, 236, 400, 408, and 414. Missouri Highway V was covered by water.

Strong Wind in BOLLINGER, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 36.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in CAPE GIRARDEAU, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 38.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in SCOTT, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 35.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in MISSISSIPPI, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 35.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in NEW MADRID, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 35.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in STODDARD, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in BUTLER, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 39.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in CARTER, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 34.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in RIPLEY, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 34.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in WAYNE, MISSOURI
From 10-JAN-20 22:00:00 to 11-JAN-20 03:00:00 (CST-6)
Magnitude: 34.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in WAYNE, MISSOURI
From 11-JAN-20 00:40:00 to 11-JAN-20 00:40:00 (CST-6)
Location: SHOOK
Magnitude: 78.00 EG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large portion of the roof was blown off a big wooden barn. A window pane was blown out of a house, and a few shingles were blown off. Numerous trees were blown down, blocking access to the area. One tree fell on an old abandoned camper, destroying it.

Flood in WAYNE, MISSOURI
From 11-JAN-20 04:00:00 to 12-JAN-20 19:30:00 (CST-6)
Location: SILVA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred on the St. Francis River. The river crested at 25.22 feet at the Patterson river gage on the evening of the 11th. Moderate flooding begins at 25.0 feet. Low-lying woods and fields were flooded extensively.

Flood in RIPLEY, MISSOURI
From 13-JAN-20 01:30:00 to 13-JAN-20 08:00:00 (CST-6)
Location: DONIPHAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred on the Current River. Some low-lying woods and fields were underwater.

Thunderstorm Wind in BUTLER, MISSOURI
From 11-JAN-20 00:50:00 to 11-JAN-20 00:50:00 (CST-6)
Location: NEELYVILLE
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A roof was partially blown off a house along County Road 257.

Thunderstorm Wind in CAPE GIRARDEAU, MISSOURI
From 11-JAN-20 01:55:00 to 11-JAN-20 01:55:00 (CST-6)
Location: CAPE GIRARDEAU
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was blown down on a house.

Flood in BUTLER, MISSOURI
From 11-JAN-20 14:00:00 to 13-JAN-20 10:00:00 (CST-6)
Location: POPLAR BLUFF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred on the Black River. Low-lying woods, fields, and portions of a city park were flooded.