A strong upper level trough of low pressure extending from the Intermountain West into the Four Corners Region energized the southwest flow aloft across the Southern Plains during much of the day on May 8th, with a strong low level jet sustaining a mesoscale convective complex (MCS) across much of Oklahoma into Northcentral Texas south into the Texas Hill Country. While these storms gradually weakened after daybreak as a cold pool from these storms propagated southeast into the region, additional upper level disturbances ahead of this trough interacted with ample moisture and instability near this cold pool to intensify these showers and thunderstorms, some of which became severe with damaging winds as they moved across portions of East Texas, Southwest Arkansas, and North Louisiana. Strong low level shear was also present within the moderately unstable air mass, with discrete supercell thunderstorms developing across extreme East Texas and North Louisiana. This resulted in several reports of tornadoes, with two separate tracks found across Northern Harrison and extreme Northeast Panola Counties, before the storms moved into North Louisiana by mid-afternoon. Locally heavy rainfall from the stronger storms within a short period of time also resulted in localized flash flooding across portions of Cass County, with flash flooding also reported across Eastern Harrison and Panola Counties during the early morning hours on May 9th as additional showers and thunderstorms redeveloped and moved repeatedly over the same areas. During the evening hours on the 9th, isolated severe thunderstorms developed over portions of Deep East Texas along old outflow boundaries from the storms earlier in the day. These storms produced large hail in extreme Southern Sabine County and Central Nacogdoches County before diminishing by midnight.

Tornado in HARRISON, TEXAS
From 08-MAY-19 13:36:00 to 08-MAY-19 13:45:00 (CST-6)
Location: MARSHALL NORTHEAST
Tornado F-scale: EF1
Property damage: 125.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with maximum estimated winds around 105 mph developed within a squall line of thunderstorms that produced sporadic straight line wind damage mainly to trees across Northern Harrison County. The tornado touched down a few miles west of Highway 59 on FM 1997, tracking east across County Road 4000 where several trees were snapped and uprooted.  As the tornado crossed Highway 59 along the north side of Suburban Acres Road, numerous hardwood trees were snapped with a few homes receiving roof damage due to trees or large limbs falling on the structures. The tornado continued to uproot and snap several more trees before crossing County Road 2012, and lifting shortly thereafter.

Thunderstorm Wind in HARRISON, TEXAS
From 08-MAY-19 13:40:00 to 08-MAY-19 13:40:00 (CST-6)
Location: MARSHALL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Meredith and Wingwood Street.

Funnel Cloud in HARRISON, TEXAS
From 08-MAY-19 13:47:00 to 08-MAY-19 13:47:00 (CST-6)
Location: MARSHALL NORTHEAST
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A video of a funnel cloud was filmed at the intersection of Highway 43 and Loop 390 in Northeast Marshall.

Tornado in PANOLA, TEXAS
From 08-MAY-19 14:19:00 to 08-MAY-19 14:20:00 (CST-6)
Location: PANOLA PEDROS ARPT
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with maximum estimated winds near 100 mph touched down along Highway 79 in Bethany, Texas in the far northeast section of Panola County, where it snapped and uprooted several trees and removed the roofing of a service station along Highway 79 before crossing over into Caddo Parish in Northwest Louisiana. The estimated winds of the tornado shortly after it touched down in Panola County was near 90 mph before the winds increased as it moved into the Louisiana side of Bethany in Caddo Parish.

Flash Flood in TITUS, TEXAS
From 08-MAY-19 14:27:00 to 08-MAY-19 16:00:00 (CST-6)
Location: MT PLEASANT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two high water rescues were performed on East 1st Street and Mc Lean Avenue.

Thunderstorm Wind in ANGELINA, TEXAS
From 08-MAY-19 14:40:00 to 08-MAY-19 14:40:00 (CST-6)
Location: (LFK)ANGELINA CO ARP
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous trees were blown down in the Crown Colony subdivision.

Flash Flood in CASS, TEXAS
From 08-MAY-19 15:31:00 to 08-MAY-19 17:45:00 (CST-6)
Location: ATLANTA MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

High water covered several roads across the city of Atlanta.

Flash Flood in HARRISON, TEXAS
From 09-MAY-19 02:11:00 to 09-MAY-19 04:00:00 (CST-6)
Location: WOODLAWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads were flooded across Eastern Harrison County.

Flash Flood in PANOLA, TEXAS
From 09-MAY-19 02:18:00 to 09-MAY-19 04:00:00 (CST-6)
Location: DE BERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nearly every county road along Highway 79 North from Deberry to Bethany was flooded. The flooding included portions of Highway 31 east to FM 9, as well as numerous other county roads in Eastern Panola County.

Hail in SABINE, TEXAS
From 09-MAY-19 17:05:00 to 09-MAY-19 17:05:00 (CST-6)
Location: BROOKELAND
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Pictures were posted to social media of half dollar to ping pong ball size hail that fell in and just south of the Brookeland community near the Sabine/Jasper County line.

Thunderstorm Wind in ANGELINA, TEXAS
From 08-MAY-19 14:25:00 to 08-MAY-19 14:25:00 (CST-6)
Location: GILBERT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down and a trampoline was blown over by damaging winds.

Hail in NACOGDOCHES, TEXAS
From 09-MAY-19 22:30:00 to 09-MAY-19 22:30:00 (CST-6)
Location: NACOGDOCHES
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Ping pong ball size hail fell along Highway 59 on the southwest side of Nacogdoches.

Thunderstorm Wind in GREGG, TEXAS
From 08-MAY-19 12:52:00 to 08-MAY-19 12:52:00 (CST-6)
Location: KILGORE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were blown down across Kilgore.

Thunderstorm Wind in RUSK, TEXAS
From 08-MAY-19 13:05:00 to 08-MAY-19 13:05:00 (CST-6)
Location: CROSS RDS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down. A vehicle was blocked on a County Road southwest of the Lakeport community.

Thunderstorm Wind in GREGG, TEXAS
From 08-MAY-19 13:05:00 to 08-MAY-19 13:05:00 (CST-6)
Location: GREGGTON
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The church steeple was blown off of Oakland Heights Baptist Church on Judson Road.

Thunderstorm Wind in GREGG, TEXAS
From 08-MAY-19 13:05:00 to 08-MAY-19 13:05:00 (CST-6)
Location: LONGVIEW EASTSIDE AR
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damaging straight line winds blew down numerous trees throughout Longview. A number of trees landed on homes.

Thunderstorm Wind in RUSK, TEXAS
From 08-MAY-19 13:10:00 to 08-MAY-19 13:10:00 (CST-6)
Location: HENDERSON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were downed on Maple Street behind O'Reilly's Auto Parts on Highway 79.