A warm front had begun to lift north across Deep East Texas and Southwest Louisiana during the early morning hours of May 3rd, in response to a developing area of surface low pressure over Westcentral Texas along a cold front that extended northeast into Central Oklahoma. This cold front was out ahead of a positively tilted upper trough, as it progressed southeast into Oklahoma during the afternoon. Meanwhile, a shortwave trough ejecting northeast over Southeast Texas and Central Louisiana ahead of the main upper trough during the morning contributed to scattered to numerous shower and thunderstorm development over Southeast Texas and Southwest Louisiana prior to daybreak on the 3rd, which advanced northeast into Deep East Texas and Central/Southern Louisiana shortly there-afterwards. Additional showers and thunderstorms quickly developed over Southeast Oklahoma and Southwest Arkansas along and just ahead of the front and associated upper trough around/shortly after daybreak. Given the adequate shear and steep lapse rates aloft ahead of the main upper trough, some of the storms over Southeast Oklahoma became severe, producing large hail during the morning. Isolated severe thunderstorms also developed farther south across East Texas and Western Louisiana, with large hail initially the main threat. However, as the air mass destabilized with additional diurnal heating ahead of the front, more numerous strong to severe thunderstorms developed by afternoon as large scale forcing increased ahead of the approaching upper trough, interacting with the warm front over East Texas/Western Louisiana, as well as a mesoscale boundary left behind over portions of the Sam Rayburn Country across Central Louisiana from the morning storms. Large hail and damaging winds were common with these storms during the afternoon and early evening, before the storms exited the region by mid-evening. Isolated areas of flash flooding was also observed across portions of Southwest Arkansas and East Texas, where storms produced very heavy rainfall and briefly moved repeatedly over the same areas.

Hail in ANGELINA, TEXAS
From 03-MAY-17 12:54:00 to 03-MAY-17 12:54:00 (CST-6)
Location: DIBOLL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail reported along Hwy. 59 south southwest of Diboll.

Lightning in SMITH, TEXAS
From 03-MAY-17 14:00:00 to 03-MAY-17 14:00:00 (CST-6)
Location: TYLER
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a chimney on a home on West 3rd Street at College Avenue resulting in the chimney collapsing.

Hail in SMITH, TEXAS
From 03-MAY-17 14:12:00 to 03-MAY-17 14:12:00 (CST-6)
Location: CARROLL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in SMITH, TEXAS
From 03-MAY-17 14:27:00 to 03-MAY-17 14:27:00 (CST-6)
Location: FLINT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter size hail was reported in the Flint community.

Hail in SMITH, TEXAS
From 03-MAY-17 14:27:00 to 03-MAY-17 14:27:00 (CST-6)
Location: NOONDAY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SMITH, TEXAS
From 03-MAY-17 14:31:00 to 03-MAY-17 14:31:00 (CST-6)
Location: PEACEFUL VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SMITH, TEXAS
From 03-MAY-17 14:32:00 to 03-MAY-17 14:32:00 (CST-6)
Location: TROUP
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SMITH, TEXAS
From 03-MAY-17 14:32:00 to 03-MAY-17 14:32:00 (CST-6)
Location: ELKTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel and quarter size hail was reported at the Robert E Lee High School area in the south portion of Tyler, Texas.

Hail in SMITH, TEXAS
From 03-MAY-17 14:36:00 to 03-MAY-17 14:36:00 (CST-6)
Location: TYLER
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SMITH, TEXAS
From 03-MAY-17 14:39:00 to 03-MAY-17 14:39:00 (CST-6)
Location: BASCOM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SMITH, TEXAS
From 03-MAY-17 14:40:00 to 03-MAY-17 14:40:00 (CST-6)
Location: PEACEFUL VLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SMITH, TEXAS
From 03-MAY-17 14:42:00 to 03-MAY-17 14:42:00 (CST-6)
Location: TYLER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Quarter size hail reported at the University of Texas in Tyler.

Thunderstorm Wind in SMITH, TEXAS
From 03-MAY-17 14:44:00 to 03-MAY-17 14:44:00 (CST-6)
Location: BULLARD
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees and powerlines were downed near Bullard, Texas off FM 2137 and FM 344.

Hail in SMITH, TEXAS
From 03-MAY-17 14:51:00 to 03-MAY-17 14:51:00 (CST-6)
Location: (TYR)TYLER POUNDS FL
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was reported on Toll 49 southeast at 1538.

Thunderstorm Wind in SMITH, TEXAS
From 03-MAY-17 14:51:00 to 03-MAY-17 14:51:00 (CST-6)
Location: FLINT
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was downed blocking County Road 177.

Thunderstorm Wind in CHEROKEE, TEXAS
From 03-MAY-17 14:54:00 to 03-MAY-17 14:54:00 (CST-6)
Location: BULLARD
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was downed on FM 2493 at Hwy. 69.

Hail in RUSK, TEXAS
From 03-MAY-17 15:02:00 to 03-MAY-17 15:02:00 (CST-6)
Location: HENDERSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHEROKEE, TEXAS
From 03-MAY-17 15:05:00 to 03-MAY-17 15:05:00 (CST-6)
Location: JACKSONVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Hail in RUSK, TEXAS
From 03-MAY-17 15:10:00 to 03-MAY-17 15:10:00 (CST-6)
Location: HENDERSON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in NACOGDOCHES, TEXAS
From 03-MAY-17 15:25:00 to 03-MAY-17 15:25:00 (CST-6)
Location: CUSHING
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in NACOGDOCHES, TEXAS
From 03-MAY-17 15:30:00 to 03-MAY-17 15:30:00 (CST-6)
Location: CUSHING
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in PANOLA, TEXAS
From 03-MAY-17 15:30:00 to 03-MAY-17 15:30:00 (CST-6)
Location: CARTHAGE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were downed across all of Panola County but especially across central and southern portions of the county.  Numerous powerlines were downed as well.

Thunderstorm Wind in RUSK, TEXAS
From 03-MAY-17 15:30:00 to 03-MAY-17 15:30:00 (CST-6)
Location: HENDERSON
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were downed across much of Rusk County from damaging straight line wind gusts.  One large tree fell on a home on the 3600 Block of FM 3310 south of Henderson.

Thunderstorm Wind in PANOLA, TEXAS
From 03-MAY-17 15:33:00 to 03-MAY-17 15:33:00 (CST-6)
Location: CLAYTON
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Numerous trees and powerlines were downed across the western portions of Panola County.

Hail in ANGELINA, TEXAS
From 03-MAY-17 15:39:00 to 03-MAY-17 15:39:00 (CST-6)
Location: LUFKIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SHELBY, TEXAS
From 03-MAY-17 15:40:00 to 03-MAY-17 15:40:00 (CST-6)
Location: TIMPSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were downed in the Timpson, Texas community.

Thunderstorm Wind in SHELBY, TEXAS
From 03-MAY-17 15:42:00 to 03-MAY-17 15:42:00 (CST-6)
Location: TIMPSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were downed along FM 1970 west of Timpson, Texas.

Thunderstorm Wind in SHELBY, TEXAS
From 03-MAY-17 15:43:00 to 03-MAY-17 15:43:00 (CST-6)
Location: TIMPSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed along CR 4775 southwest of Timpson, Texas.

Flash Flood in NACOGDOCHES, TEXAS
From 03-MAY-17 15:54:00 to 03-MAY-17 18:45:00 (CST-6)
Location: NACOGDOCHES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Excessive heavy rainfall resulted in the closure of Pearl Street.

Flash Flood in NACOGDOCHES, TEXAS
From 03-MAY-17 15:58:00 to 03-MAY-17 18:45:00 (CST-6)
Location: NACOGDOCHES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Excessive heavy rainfall resulted in the closure of Blount Street.

Thunderstorm Wind in SHELBY, TEXAS
From 03-MAY-17 16:10:00 to 03-MAY-17 16:10:00 (CST-6)
Location: SHELBYVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was uprooted in Shelbyville.

Thunderstorm Wind in NACOGDOCHES, TEXAS
From 03-MAY-17 16:18:00 to 03-MAY-17 16:18:00 (CST-6)
Location: NACOGDOCHES
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Trees were downed in town.

Hail in NACOGDOCHES, TEXAS
From 03-MAY-17 16:25:00 to 03-MAY-17 16:25:00 (CST-6)
Location: NACOGDOCHES REGL ARP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Hail in ANGELINA, TEXAS
From 03-MAY-17 16:30:00 to 03-MAY-17 16:30:00 (CST-6)
Location: LUFKIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Flash Flood in ANGELINA, TEXAS
From 03-MAY-17 16:30:00 to 03-MAY-17 18:45:00 (CST-6)
Location: LUFKIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Low water crossings were flooded 3 miles south of Lufkin on Hwy. 59.

Thunderstorm Wind in ANGELINA, TEXAS
From 03-MAY-17 16:34:00 to 03-MAY-17 16:34:00 (CST-6)
Location: (LFK)ANGELINA CO ARP
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed across Torry Pines Drive in the Crown Colony Subdivision.

Thunderstorm Wind in ANGELINA, TEXAS
From 03-MAY-17 16:35:00 to 03-MAY-17 16:35:00 (CST-6)
Location: HOMER
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was downed across Spring Meadow Drive southeast of Lufkin, Texas.

Hail in NACOGDOCHES, TEXAS
From 03-MAY-17 16:35:00 to 03-MAY-17 16:35:00 (CST-6)
Location: ETOILE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail was reported in the Etoile community.

Hail in ANGELINA, TEXAS
From 03-MAY-17 16:43:00 to 03-MAY-17 16:43:00 (CST-6)
Location: HERTY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ANGELINA, TEXAS
From 03-MAY-17 16:50:00 to 03-MAY-17 16:50:00 (CST-6)
Location: HUNTINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in NACOGDOCHES, TEXAS
From 03-MAY-17 16:53:00 to 03-MAY-17 16:53:00 (CST-6)
Location: ETOILE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail reported at CR 1133 and 560 southwest of Chireno, Texas.

Thunderstorm Wind in NACOGDOCHES, TEXAS
From 03-MAY-17 17:05:00 to 03-MAY-17 17:05:00 (CST-6)
Location: CHIRENO
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed along Hwy. 21 in Chireno, Texas.

Thunderstorm Wind in SABINE, TEXAS
From 03-MAY-17 17:24:00 to 03-MAY-17 17:24:00 (CST-6)
Location: YELLOWPINE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blocking Hwy. 87 south between Hemphill and Yellowpine.  Several other trees were downed across the county as well.

Flash Flood in SABINE, TEXAS
From 03-MAY-17 17:30:00 to 03-MAY-17 20:30:00 (CST-6)
Location: MILAM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water resulted in the closure of Hwy. 3121 northeast of Hemphill, Texas.

Flash Flood in SABINE, TEXAS
From 03-MAY-17 17:50:00 to 03-MAY-17 20:30:00 (CST-6)
Location: EAST MAYFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Excessive heavy rainfall resulted in the closure of FM 1592 northwest of Hemphill, Texas.

Hail in RUSK, TEXAS
From 03-MAY-17 14:57:00 to 03-MAY-17 14:57:00 (CST-6)
Location: TAINERVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Quarter size hail fell in the Joinerville community.

Flash Flood in RUSK, TEXAS
From 03-MAY-17 15:18:00 to 03-MAY-17 18:15:00 (CST-6)
Location: TRUKTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water was over Farm to Market Road 2276 between Loop 571 and County Road 323.

Tornado in ANGELINA, TEXAS
From 03-MAY-17 16:31:00 to 03-MAY-17 16:37:00 (CST-6)
Location: LUFKIN
Tornado F-scale: EF0
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF0 tornado first touched down at the intersection of Church Street and Grant Avenue and began to move east southeast through southeast Lufkin.  During this stretch, several large trees were uprooted , knocking over power poles and taking down power lines.  A few of these trees fell directly on to homes.  The tornado crossed the 287 loop between Highway 69 and CR 841.  Several large trees were uprooted and numerous large branches were broken off as it paralleled Fannie Carrell Road as it continued southeast, eventually crossing CR 841 near Fish Road.  The tornado lifted near the intersection of Flen Gary Road and CR 326 but not before knocking over several more large trees there, with one on a home.

Tornado in PANOLA, TEXAS
From 03-MAY-17 15:14:00 to 03-MAY-17 15:22:00 (CST-6)
Location: CLAYTON
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado touched down just north of the intersection of CR 152 and CR 153.  The tornado uprooted and snapped several trees while it paralleled CR 152 as it moved east southeast towards Clayton.  It damaged a few out building and a few home before it did some concentrated tree damage near several homes just north of Highway 315 and CR 1970.  A large, metal outbuilding was completely rolled over here.  It continued east where it continued to damage homes and numerous trees along CR 112.  The tornado crossed Highway 315 between CR 113 and CR 108.  The tornado did some concentrated tree damage where it crossed CR 1081, toppling and splitting numerous trees.  The tornado continued east where it ripped the roof off a metal building system along CR 108 west of CR 106.  The tornado continued east where it did some significant damage to two farm buildings.  The strongest winds associated with the tornado were noted here.  The tornado damaged the roofs of two homes along CR 108 east of CR 106.  The tornado then did some sporadic tree damage before lifting near the intersection of CR 108 and CR 403.