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. While these storms weakened during the early morning hours on May 21st, additional scattered severe thunderstorms developed behind the front over East-Central Texas, which produced large hail throughout Cherokee and Rusk Counties just prior to daybreak. These storms finally weakened in intensity through mid and late morning as they spread across a drier and more stable air mass in wake of the cold frontal passage.

Hail in ANGELINA, TEXAS
From 20-MAY-17 18:24:00 to 20-MAY-17 18:24:00 (CST-6)
Location: (LFK)ANGELINA CO ARP
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter to ping pong ball size hail fell at the Crown Colony subdivision in South Lufkin near Angelina College.

Hail in ANGELINA, TEXAS
From 20-MAY-17 18:43:00 to 20-MAY-17 18:43:00 (CST-6)
Location: HERTY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell at the intersection of Highway 59 and Highway 69 in Lufkin.

Hail in SHELBY, TEXAS
From 20-MAY-17 20:35:00 to 20-MAY-17 20:35:00 (CST-6)
Location: JOAQUIN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A picture of ping pong ball size hail that fell in Joaquin was posted to the KSLA-TV Facebook page.

Hail in CHEROKEE, TEXAS
From 21-MAY-17 05:20:00 to 21-MAY-17 05:20:00 (CST-6)
Location: NORTH RUSK
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Ping pong ball size hail fell in the western sections of Rusk via the KETK-TV Facebook page.

Hail in CHEROKEE, TEXAS
From 21-MAY-17 05:25:00 to 21-MAY-17 05:25:00 (CST-6)
Location: RUSK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter size hail fell in the city of Rusk at the Sheriff's Office.

Hail in RUSK, TEXAS
From 21-MAY-17 06:14:00 to 21-MAY-17 06:14:00 (CST-6)
Location: NEW SALEM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell at the Lake Striker RV Park Restaurant and Marina.

Hail in SMITH, TEXAS
From 21-MAY-17 06:50:00 to 21-MAY-17 06:50:00 (CST-6)
Location: TROUP
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Troup ISD Emergency Manager reported nickel size hail in Troup.

Hail in RUSK, TEXAS
From 21-MAY-17 06:54:00 to 21-MAY-17 06:54:00 (CST-6)
Location: HENDERSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail fell just east of Henderson.

Flash Flood in CHEROKEE, TEXAS
From 20-MAY-17 06:30:00 to 20-MAY-17 09:15:00 (CST-6)
Location: POMONA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding was reported at the intersection of Canada and Beaumont Street, the 3000 block of North Jackson Street, and the 1200 block of West Rusk Street in Jacksonville.

Hail in ANGELINA, TEXAS
From 20-MAY-17 18:23:00 to 20-MAY-17 18:23:00 (CST-6)
Location: (LFK)ANGELINA CO ARP
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball size hail fell near Angelina College.