A strong storm system and associated cold front moved into the Southern Plains on the 10th. Unseasonably warm and moist air spread northward from the Gulf of Mexico ahead of this system, resulting in weak to moderate instability developing across eastern Oklahoma and northwest Arkansas. This instability, combined with very strong wind fields and wind shear, resulted in organized severe thunderstorms. The strongest storms produced large hail up to golfball size, damaging wind, a tornado, and flash flooding.

Hail in BENTON, ARKANSAS
From 10-JAN-20 16:10:00 to 10-JAN-20 16:10:00 (CST-6)
Location: SILOAM SPGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, ARKANSAS
From 10-JAN-20 16:22:00 to 10-JAN-20 16:22:00 (CST-6)
Location: DECATUR
Magnitude: 1.75 
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in BENTON, ARKANSAS
From 10-JAN-20 16:24:00 to 10-JAN-20 16:24:00 (CST-6)
Location: SILOAM SPGS ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BENTON, ARKANSAS
From 10-JAN-20 16:33:00 to 10-JAN-20 16:33:00 (CST-6)
Location: CENTERTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in BENTON, ARKANSAS
From 10-JAN-20 19:25:00 to 11-JAN-20 00:15:00 (CST-6)
Location: BENTONVILLE BRANCH J
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several vehicles were driven into high water and were stranded.

Tornado in FRANKLIN, ARKANSAS
From 10-JAN-20 19:45:00 to 10-JAN-20 19:49:00 (CST-6)
Location: POPING
Tornado F-scale: EF1
Property damage: 35.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed along the leading edge of a line of thunderstorms, south of Highway 96. It moved east-northeast, damaging the roof of a home, destroying several outbuildings, snapping or uprooting numerous trees, and blowing down power poles. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

Flash Flood in SEBASTIAN, ARKANSAS
From 10-JAN-20 19:32:00 to 11-JAN-20 00:30:00 (CST-6)
Location: FT SMITH
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Several vehicles were driven into high water and were stranded.

Thunderstorm Wind in FRANKLIN, ARKANSAS
From 10-JAN-20 19:38:00 to 10-JAN-20 19:38:00 (CST-6)
Location: BRANCH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down a tree on Highway 41, north of Highway 22.

Flash Flood in CRAWFORD, ARKANSAS
From 10-JAN-20 21:10:00 to 11-JAN-20 00:30:00 (CST-6)
Location: VAN BUREN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of several roadways were flooded across the county.

Flash Flood in WASHINGTON, ARKANSAS
From 10-JAN-20 19:50:00 to 11-JAN-20 00:15:00 (CST-6)
Location: WHEELER
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of several roads were flooded across the county, with at least two swift water rescues conducted.

Thunderstorm Wind in FRANKLIN, ARKANSAS
From 10-JAN-20 19:50:00 to 10-JAN-20 19:50:00 (CST-6)
Location: CASS
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down trees and power lines, and damaged the roofs of buildings on Highway 23, north of Cass.