A strong upper level low pressure system emerged out across the Southern Plains during the morning and afternoon hours of January 21st. Ahead of this system, unseasonably warm, humid, and unstable air spread northward across much of the Ark-La-Tex from the Gulf of Mexico in advance of this system and associated Pacific cold front. A surface low pressure system also developed along the advancing cold front, with low level winds backing more southeast ahead of the upper level low. Coupled with strong wind shear and instability, scattered severe supercell thunderstorms rapidly developed during the mid and late afternoon hours across portions of extreme Eastern Texas, Southern Arkansas, and Northern Louisiana. The considerable wind shear contributed to rotating updrafts, such that twelve tornadoes touched down across the aforementioned areas. Instances of large hail was also reported with these supercells, given the very cold temperatures aloft. These severe thunderstorms exited the region during the mid evening hours into the Ark-La-Miss region where additional tornadoes and instances of severe thunderstorm damage was reported.

Hail in CADDO, LOUISIANA
From 21-JAN-17 18:07:00 to 21-JAN-17 18:07:00 (CST-6)
Location: HOSSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Hosston.

Hail in CLAIBORNE, LOUISIANA
From 21-JAN-17 18:15:00 to 21-JAN-17 18:15:00 (CST-6)
Location: LAKE CLAIBORNE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

The public posted a photo of quarter size hail that fell at Lake Claiborne on the KSLA-TV Facebook page.

Hail in CLAIBORNE, LOUISIANA
From 21-JAN-17 18:20:00 to 21-JAN-17 18:20:00 (CST-6)
Location: LAKE CLAIBORNE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

The public posted a photo of half dollar size hail that fell at Lake Claiborne on the KTBS-TV Facebook page.

Hail in CLAIBORNE, LOUISIANA
From 21-JAN-17 18:30:00 to 21-JAN-17 18:30:00 (CST-6)
Location: HAYNESVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A picture of half dollar size hail that fell in Haynesville was posted to the KSLA-TV Facebook page.

Hail in CADDO, LOUISIANA
From 21-JAN-17 18:45:00 to 21-JAN-17 18:45:00 (CST-6)
Location: GILLIAM
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail was covering the road.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 18:16:00 to 21-JAN-17 18:16:00 (CST-6)
Location: SHONGALOO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golf Ball size hail fell in Shongaloo.

Tornado in CADDO, LOUISIANA
From 21-JAN-17 17:23:00 to 21-JAN-17 17:28:00 (CST-6)
Location: VIVIAN ARPT
Tornado F-scale: EF2
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is a continuation of the Cass County EF-2 tornado. This tornado crossed Cass County Line Road into Western Caddo Parish snapping and uprooting numerous trees along its path. A roof was torn off of a cinder block storage building and shifted a single wide mobile home several feet off of its foundation. Several shingles were ripped of a nearby home. A homeowner stated that 31 trees were down across an acre of property but remarkably, none of the trees fell on a home on that property. Maximum estimated winds along Cass County Road on the Caddo Parish side was 115 mph, with the tornado eventually weakening as it tracked northeast and lifting on Old Atlanta Road just south of Myrtis Texas Line Road.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 18:17:00 to 21-JAN-17 18:17:00 (CST-6)
Location: SHONGALOO
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tennis ball size hail fell in Shongaloo.

Tornado in GRANT, LOUISIANA
From 21-JAN-17 19:00:00 to 21-JAN-17 19:13:00 (CST-6)
Location: ALOHA
Tornado F-scale: EF1
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with maximum estimated winds of 110 mph touched down along Richardson Road between the Aloha and Colfax communities and tracked northeast along Richardson Road toppling a large television antenna atop a home but just missing a large pecan orchard before later snapping/uprooting numerous trees downstream and damaging several barns and other outbuildings across a large farm. As the tornado approached Highway 71, a 3000 pound trailer was flipped over, killing a cow before landing/blocking Highway 71. The tornado continued northeast along the southeast side of Highway 471 east of Highway 71, where a single wide mobile home was flipped over and rolled about 25 yards, injuring a woman inside. A large tree also fell on a home causing major damage. Other outbuildings were damaged/destroyed as well along Highway 471. Several trees were also snapped/uprooted at the Summerfield Baptist Church cemetery before the tornado finally lifted.

Hail in CADDO, LOUISIANA
From 21-JAN-17 16:55:00 to 21-JAN-17 16:55:00 (CST-6)
Location: CADDO
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A picture of 2 inch diameter hail was tweeted by the public in Oil City.

Hail in CADDO, LOUISIANA
From 21-JAN-17 16:55:00 to 21-JAN-17 16:55:00 (CST-6)
Location: TREES
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A picture of 2 inch diameter hail was tweeted by the public northwest of Oil City.

Hail in LA SALLE, LOUISIANA
From 21-JAN-17 19:00:00 to 21-JAN-17 19:00:00 (CST-6)
Location: WHITEHALL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter size hail fell along Highway 8 in the Whitehall community.

Funnel Cloud in CADDO, LOUISIANA
From 21-JAN-17 19:03:00 to 21-JAN-17 19:03:00 (CST-6)
Location: CAVETT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A funnel cloud was reported just southwest of Gilliam.

Hail in BOSSIER, LOUISIANA
From 21-JAN-17 17:09:00 to 21-JAN-17 17:09:00 (CST-6)
Location: PLAIN DEALING
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golf Ball size hail fell in Plain Dealing.

Tornado in BOSSIER, LOUISIANA
From 21-JAN-17 17:12:00 to 21-JAN-17 17:31:00 (CST-6)
Location: ANTRIM
Tornado F-scale: EF2
Property damage: 800.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-2 tornado with maximum estimated winds near 115 mph touched down just east of Plain Dealing along Pleasant Hill Cemetary Road where it uprooted numerous trees and downed power lines. This tornado crossed Highway 2 where it damaged several homes and two mobile homes were rolled and completely destroyed. One injury was reported when a resident was hit in the head by a flying piece of lumber rendering the resident briefly unconscious in a manufactured home that lost its roof. An adjacent exterior wall was removed with another pushed in. The worst structural damage was observed near and adjacent to Mott Road, with the tornado continuing northeast uprooting numerous trees and power lines along its track before entering Northwest Webster Parish.

Hail in GRANT, LOUISIANA
From 21-JAN-17 19:25:00 to 21-JAN-17 19:25:00 (CST-6)
Location: DRY PRONG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter size hail fell in Dry Prong.

Hail in UNION, LOUISIANA
From 21-JAN-17 19:30:00 to 21-JAN-17 19:30:00 (CST-6)
Location: SPEARSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Spearsville.

Tornado in WEBSTER, LOUISIANA
From 21-JAN-17 17:31:00 to 21-JAN-17 17:37:00 (CST-6)
Location: SPRINGHILL
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is a continuation of the Bossier Parish tornado. This tornado had weakened to EF-1 as it entered Northwest Webster Parish, but still uprooted numerous trees and power lines along its track and it tore through the Muddy Bottoms ATV Park. Within the park, the tornado removed a portion of the roof of a building before lifting in the extreme northern portion of the park. Maximum estimated winds ranged between 90-100 mph.

Hail in CADDO, LOUISIANA
From 21-JAN-17 17:10:00 to 21-JAN-17 17:10:00 (CST-6)
Location: HOSSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Hosston at the intersection of I-49 and Highway 2.

Hail in BOSSIER, LOUISIANA
From 21-JAN-17 19:39:00 to 21-JAN-17 19:39:00 (CST-6)
Location: IVAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to quarter size hail fell southwest of Cotton Valley.

Hail in GRANT, LOUISIANA
From 21-JAN-17 19:50:00 to 21-JAN-17 19:50:00 (CST-6)
Location: ANTONIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter size hail fell near Highway 165 between Georgetown and Pollock.

Hail in CADDO, LOUISIANA
From 21-JAN-17 17:50:00 to 21-JAN-17 17:50:00 (CST-6)
Location: VIVIAN
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail slightly larger than golfballs fell in Vivian.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 17:50:00 to 21-JAN-17 17:50:00 (CST-6)
Location: SPRINGHILL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball size hail fell in Springhill.

Tornado in GRANT, LOUISIANA
From 21-JAN-17 19:51:00 to 21-JAN-17 19:54:00 (CST-6)
Location: ANTONIA
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with maximum estimated winds between 90 and 100 mph touched down along Highway 165 between Georgetown and Pollock where it snapped several large trees. The tornado continued northeast across a heavily wooded area before it tracked across Camp Hardtner on Camp Hardtner Road, snapping and uprooting numerous trees. A large pine tree fell onto one of the meeting buildings at the camp, and shingles were removed off of a nearby home and adjacent meeting buildings. The tornado lifted shortly after exiting Camp Hardtner.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 19:50:00 to 21-JAN-17 19:50:00 (CST-6)
Location: COTTON VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golfball size hail broke out a windshield on an ambulance in Cotton Valley.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 17:50:00 to 21-JAN-17 17:50:00 (CST-6)
Location: SPRINGHILL
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the general public posted a photo to the KSLA Facebook page of tennis ball size hail that fell in Springhill.

Hail in NATCHITOCHES, LOUISIANA
From 21-JAN-17 17:50:00 to 21-JAN-17 17:50:00 (CST-6)
Location: NATCHITOCHES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Natchitoches.

Thunderstorm Wind in UNION, LOUISIANA
From 21-JAN-17 20:27:00 to 21-JAN-17 20:27:00 (CST-6)
Location: CONWAY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were snapped and uprooted north of Farmerville.

Tornado in LA SALLE, LOUISIANA
From 21-JAN-17 20:29:00 to 21-JAN-17 20:30:00 (CST-6)
Location: MIDWAY
Tornado F-scale: EF0
Property damage: 90.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with maximum estimated winds between 86-95 mph touched down just west of Parish Road 3104 near the intersection of Highway 8 on the west side of Jena, snapping and uprooting several trees and tearing the roof and a portion of the wall off of a wooden outbuilding. The tornado also ripped some shingles off of a church across the street with debris breaking a few windows from the church as well. The tornado also ripped a canopy off of a gas station on Highway 8, tossing it 40-50 yards down the road. The worst of the structural damage came to a Conoco office building on Highway 8, where much of the front brick facade collapsed. Several windows from this office building were shattered as well. The tornado continued southeast behind the office building where it heavy damaged a couple of metal storage buildings. Several trees were also snapped downstream from these storage buildings before the tornado lifted north of Park Street.

Hail in CADDO, LOUISIANA
From 21-JAN-17 17:30:00 to 21-JAN-17 17:30:00 (CST-6)
Location: VIVIAN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Half dollar size hail fell on Conley Road just east of Vivian.

Hail in WEBSTER, LOUISIANA
From 21-JAN-17 17:50:00 to 21-JAN-17 17:50:00 (CST-6)
Location: SYKES FERRY
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two inch diameter hail was reported in Sarepta.

Tornado in UNION, LOUISIANA
From 21-JAN-17 20:48:00 to 21-JAN-17 20:49:00 (CST-6)
Location: DEAN
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-0 tornado with maximum estimated winds between 75 and 85 mph touched down along Alabama Landing Road near Parish Road 2253 just east southeast of the Marion community, where several small trees were snapped. The tornado continued northeast along Alabama Landing Road where considerable damage was done to a metal shed and before lifting, removed a metal roof from another outbuilding and deposited it in an open field.

Tornado in WEBSTER, LOUISIANA
From 21-JAN-17 17:55:00 to 21-JAN-17 18:07:00 (CST-6)
Location: SHONGALOO
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 105 mph touched down just south of Shongaloo along Elmer Moore Road and continued northeast across Rodney Martin, Wortham, and Thomas Rhone Roads before crossing Highway 159. The tornado continued northeast before lifting along Hearn Road. Damage consisted of numerous trees that were snapped and/or uprooted. A tree fell on a carport and a portion of a mobile home on Wortham Road.

Hail in CADDO, LOUISIANA
From 21-JAN-17 17:58:00 to 21-JAN-17 17:58:00 (CST-6)
Location: VIVIAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A second road of large hail (quarter size) fell on Conley Road just southeast of Vivian.

Tornado in NATCHITOCHES, LOUISIANA
From 21-JAN-17 17:56:00 to 21-JAN-17 18:03:00 (CST-6)
Location: NATCHEZ
Tornado F-scale: EF2
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-2 tornado with maximum estimated winds near 125 mph touched down near Natchez near Highway 404 where it tore the roof off of a home and destroyed a few outdoor storage buildings. The tornado was strongest as it crossed the Cane River and heavily damaged a brick home on Patrick Road, where 3 brick walls collapsed and much of the back portion of the roof was torn off. A man living in this home suffered an arm injury, but was later determined that it was not broken. The tornado continued east across a largely open field but did snap several trees before crossing Patrick Road again snapping/uprooting numerous trees and slightly damaging several homes. The tornado crossed the Cane River a second and third time before downing a chain link fence and snapping numerous large limbs along Parish Road 610 near Pratt Lane. The tornado finally lifted in an open field shortly after crossing Parish Road 610 just shy of the Red River. In all, 5 homes suffered significant damage mainly along Highway 494 and Patrick Road.