An outflow boundary from showers and thunderstorms that developed over Southwest Oklahoma during the evening and overnight hours on April 10th became stationary over Northern McCurtain County Oklahoma into the adjacent sections of Western Arkansas during the early morning hours of April 11th. This boundary focused scattered shower and thunderstorm development through the morning of the 11th, with large scale forcing enhanced especially during the afternoon and evening hours as a weak upper level trough traversed the Red River Valley of Southern Oklahoma/North Texas into Southwest Arkansas. Afternoon heating and cooling temperatures aloft ahead of this disturbance contributed to moderate instability developing especially over Southeast Oklahoma, Northeast Texas, and portions of Southwest Arkansas, contributing to the development of several severe thunderstorms over these areas. Damaging winds were the primary severe weather mode over Southwest Arkansas, with numerous trees and power lines downed especially across the south side of Texarkana Texas and Arkansas, as well as adjacent Lafayette and Columbia counties. An isolated tornado was even spawned just east of Magnolia in Columbia County along the small line of severe thunderstorms. As the storms moved into a slightly more stable air mass across Northcentral Louisiana, they began to slow their southward motion such that heavy rainfall repeatedly moving over the same areas resulted in areas of flash flooding generally along and north of the Interstate 20 corridor. The storms weakened during the late evening hours as the instability diminished.

Thunderstorm Wind in COLUMBIA, ARKANSAS
From 11-APR-16 13:15:00 to 11-APR-16 13:15:00 (CST-6)
Location: AGRICULTURAL SCHOOL
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees and power lines down along Highway 82 near SAU in Magnolia.

Hail in NEVADA, ARKANSAS
From 11-APR-16 17:08:00 to 11-APR-16 17:08:00 (CST-6)
Location: EMMET
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Emmet.

Hail in HEMPSTEAD, ARKANSAS
From 11-APR-16 17:05:00 to 11-APR-16 17:05:00 (CST-6)
Location: HOPE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A photo was posted on the KATV Twitter page of quarter size hail that fell in Hope.

Thunderstorm Wind in MILLER, ARKANSAS
From 11-APR-16 11:15:00 to 11-APR-16 11:15:00 (CST-6)
Location: MT PLEASANT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several trees were blown down on homes and vehicles at the Shady Acres Mobile Home Park in Southeast Texarkana.

Thunderstorm Wind in MILLER, ARKANSAS
From 11-APR-16 11:15:00 to 11-APR-16 11:15:00 (CST-6)
Location: MT PLEASANT
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous trees and power lines were blown down on Old Blackman Ferry Road near Union Road in Southeast Texarkana. A NWS Storm Survey confirmed that this damage was consistent with straight-line winds with wind speeds estimated between 85-95 mph.

Thunderstorm Wind in MILLER, ARKANSAS
From 11-APR-16 11:20:00 to 11-APR-16 11:20:00 (CST-6)
Location: BOYD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees and power lines were blown down across County Roads 216, 217, and 43 just northwest of Fouke.

Thunderstorm Wind in MILLER, ARKANSAS
From 11-APR-16 11:02:00 to 11-APR-16 11:02:00 (CST-6)
Location: TEXARKANA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Numerous large limbs greater than 2 inches in diameter were snapped off across the city of Texarkana.

Hail in MILLER, ARKANSAS
From 11-APR-16 11:02:00 to 11-APR-16 11:02:00 (CST-6)
Location: TEXARKANA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Nickel size hail fell in the city of Texarkana.

Thunderstorm Wind in LAFAYETTE, ARKANSAS
From 11-APR-16 11:45:00 to 11-APR-16 11:45:00 (CST-6)
Location: MARS HILL
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Tree down on a house off of County Road 18 south of Lewisville. Numerous other trees and power lines were also downed across Lafayette County.

Thunderstorm Wind in COLUMBIA, ARKANSAS
From 11-APR-16 11:58:00 to 11-APR-16 11:58:00 (CST-6)
Location: JEFFERSON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree down across Highway 82 just inside the Columbia County line east of Buckner.

Thunderstorm Wind in MILLER, ARKANSAS
From 11-APR-16 11:35:00 to 11-APR-16 11:35:00 (CST-6)
Location: GARLAND
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and power lines were blown down across the eastern portions of Miller County, including in the Garland community.

Thunderstorm Wind in COLUMBIA, ARKANSAS
From 11-APR-16 12:15:00 to 11-APR-16 12:15:00 (CST-6)
Location: AGRICULTURAL SCHOOL
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous trees and power lines were blown down on the Southern Arkansas University campus in Magnolia.

Hail in UNION, ARKANSAS
From 11-APR-16 12:58:00 to 11-APR-16 12:58:00 (CST-6)
Location: EL DORADO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

The Union County Coroner reported half dollar size hail in El Dorado.

Hail in UNION, ARKANSAS
From 11-APR-16 12:55:00 to 11-APR-16 12:55:00 (CST-6)
Location: EL DORADO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The El Dorado Police Department reported nickel size hail in the city.

Lightning in UNION, ARKANSAS
From 11-APR-16 13:03:00 to 11-APR-16 13:03:00 (CST-6)
Location: EL DORADO
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Lightning struck the Murmill Baptist Church on Beacon Hill Road in Southeast El Dorado. This resulted in a fire which completely burned the church down to the ground.

Hail in UNION, ARKANSAS
From 11-APR-16 01:05:00 to 11-APR-16 01:05:00 (CST-6)
Location: NICK SPGS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime size hail fell in the West Lake area just east of El Dorado.

Tornado in COLUMBIA, ARKANSAS
From 11-APR-16 12:26:00 to 11-APR-16 12:28:00 (CST-6)
Location: VILLAGE
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-0 tornado touched down near the intersection of County Road 294 and Highway 82 east of Magnolia, where it damaged several trees and snapped numerous limbs. It remained on the ground for just over one mile where it snapped a large oak tree along County Road 34 before lifting. A large barn just south along County Road 34 also collapsed due to the rear flank downdraft winds associated with the storm. Maximum winds from this tornado were estimated near 74 mph.