A complex of showers and thunderstorms quickly moved through the Ark-La-Tex during the early morning hours of May 20th, ahead of second thunderstorm complex over Southeast Oklahoma and Western Arkansas that slowly drifted east along and just ahead of a cold front and associated upper level trough. The storms that quickly progressed east across East Texas and North Louisiana shortly before daybreak did result in cell training over Northern Cherokee County Texas, where 2-3+ inches of rain fell in a short period of time. This resulted in flash flooding in the city of Jacksonville throughout the morning before the rains exited the area. This thunderstorm complex left pushed a large outflow boundary south into Southeast Texas and Central/Southern Louisiana by afternoon, leaving the air mass across much of the Ark-La-Tex stabilized. However, afternoon heating across a very moist air mass over Southeast Texas resulted in moderate instability developing over Northern Trinity and Polk Counties during the late afternoon, interacting with an approaching cold front to generate scattered strong to severe thunderstorms developing and shifting north northeast across portions of East Texas throughout the evening, resulting in numerous reports of large hail in Lufkin as well as in Joaquin. These severe thunderstorms spread northeast into Northwest Louisiana during the late evening throughout the early morning hours on May 21st, which downed numerous trees and produced large hail across portions of Northern Desoto, Southern Caddo and Bossier, and Northern Webster Parishes. These storms weakened during the early morning hours on May 21st as they moved into a more stable air mass in place.

Thunderstorm Wind in DE SOTO, LOUISIANA
From 20-MAY-17 21:45:00 to 20-MAY-17 21:45:00 (CST-6)
Location: STONEWALL
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blown down onto a power line on the Linwood Avenue Extension off of Stonewall Frierson Road.

Thunderstorm Wind in CADDO, LOUISIANA
From 20-MAY-17 21:55:00 to 20-MAY-17 21:55:00 (CST-6)
Location: NORTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A large limb exceeding two inches in diameter was blown down.

Thunderstorm Wind in DE SOTO, LOUISIANA
From 20-MAY-17 21:53:00 to 20-MAY-17 21:53:00 (CST-6)
Location: FRIERSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several trees were blown down along Interstate 49 near mile marker 194 near the bridge just south of the Caddo Parish line.

Hail in CADDO, LOUISIANA
From 20-MAY-17 21:55:00 to 20-MAY-17 22:55:00 (CST-6)
Location: NORTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell on Norris Ferry Road in South Shreveport.

Thunderstorm Wind in DE SOTO, LOUISIANA
From 20-MAY-17 21:45:00 to 20-MAY-17 21:45:00 (CST-6)
Location: STONEWALL
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Multiple trees were blown down on Linwood Avenue just north of Stonewall Frierson Road.

Hail in CADDO, LOUISIANA
From 20-MAY-17 22:16:00 to 20-MAY-17 22:16:00 (CST-6)
Location: LUCAS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail fell on Stratmore Drive in South Shreveport.

Thunderstorm Wind in CADDO, LOUISIANA
From 20-MAY-17 22:18:00 to 20-MAY-17 22:18:00 (CST-6)
Location: DIXIE GARDENS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were downed on Bayou Drive between Dixie Gardens Drive and Bermuda Street. Power was out to the area.

Hail in WEBSTER, LOUISIANA
From 20-MAY-17 23:15:00 to 20-MAY-17 23:15:00 (CST-6)
Location: SPRINGHILL ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Quarter size hail fell just east of Cullen. Report from the KTBS-TV Facebook page.

Thunderstorm Wind in BOSSIER, LOUISIANA
From 20-MAY-17 22:42:00 to 20-MAY-17 22:42:00 (CST-6)
Location: HAUGHTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were downed in Haughton. Power was out at Haughton High School, Haughton Middle School, and Kinsley Court.

Thunderstorm Wind in BOSSIER, LOUISIANA
From 20-MAY-17 22:35:00 to 20-MAY-17 22:35:00 (CST-6)
Location: CURTIS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were downed in the Golden Meadows subdivision near Parkway High School.