Thunderstorms developed over central Oklahoma during the early evening of the 20th, along and just ahead of a cold front moving into the area. The atmosphere ahead of the front was very unstable. Wind fields across the region strengthened with the approach of a strong upper level storm system, and very strong deep layer shear developed over eastern Oklahoma by the evening. The combination of strong instability and very strong wind shear promoted the development of supercell thunderstorms, that produced hail up to baseball size and damaging wind. As the thunderstorms moved eastward during the late evening, they eventually organized into a solid line of thunderstorms. Low level wind shear increased across the region during the evening, and this supported the development of several tornadoes, in addition to the very strong downburst wind that some of the thunderstorms produced.

Hail in CREEK, OKLAHOMA
From 20-OCT-19 19:38:00 to 20-OCT-19 19:38:00 (CST-6)
Location: BRISTOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OKMULGEE, OKLAHOMA
From 20-OCT-19 19:50:00 to 20-OCT-19 19:50:00 (CST-6)
Location: PRESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 20-OCT-19 22:40:00 to 20-OCT-19 22:40:00 (CST-6)
Location: TAHLEQUAH
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts were measured to 74 mph in Tahlequah.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 20-OCT-19 23:05:00 to 20-OCT-19 23:05:00 (CST-6)
Location: BUNCH
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind blew down several trees.

Tornado in WAGONER, OKLAHOMA
From 20-OCT-19 22:08:00 to 20-OCT-19 22:15:00 (CST-6)
Location: COWETA EASLEY ARPT
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado developed just south of Highway 51, east of Coweta, and moved east-northeast damaging a home, and blowing down trees and power poles. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

Tornado in MUSKOGEE, OKLAHOMA
From 20-OCT-19 22:12:00 to 20-OCT-19 22:22:00 (CST-6)
Location: BOYNTON
Tornado F-scale: EF0
Property damage: 2.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado developed southeast of Boynton to the south of W 83rd Street S, and moved northeast to a point north of W 33rd Street S. It uprooted a couple medium sized trees, blew down a power pole, and snapped large tree limbs. Much of the tornado path was across farmland, so the damage noted above generally occurred as the tornado crossed section line roads. Based on this damage, maximum estimated wind in the tornado was 80 to 85 mph.

Tornado in CHEROKEE, OKLAHOMA
From 20-OCT-19 22:39:00 to 20-OCT-19 22:43:00 (CST-6)
Location: TERESITA
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado uprooted trees and snapped numerous large tree limbs. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

Tornado in ADAIR, OKLAHOMA
From 20-OCT-19 23:00:00 to 20-OCT-19 23:06:00 (CST-6)
Location: CHANCE
Tornado F-scale: EF1
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first segment of a two-segment tornado. This tornado uprooted numerous trees, destroyed several outbuildings, and damaged the roofs of several homes. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph. The tornado continued into Benton County.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 20-OCT-19 23:11:00 to 20-OCT-19 23:11:00 (CST-6)
Location: WESTVILLE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind snapped large tree limbs.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 20-OCT-19 23:05:00 to 20-OCT-19 23:10:00 (CST-6)
Location: ADDIELEE
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station near Westville measured 65 mph thunderstorm wind gusts.

Hail in TULSA, OKLAHOMA
From 20-OCT-19 20:44:00 to 20-OCT-19 20:44:00 (CST-6)
Location: PRATTVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TULSA, OKLAHOMA
From 20-OCT-19 20:44:00 to 20-OCT-19 20:44:00 (CST-6)
Location: PRATTVILLE
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in TULSA, OKLAHOMA
From 20-OCT-19 20:50:00 to 20-OCT-19 20:50:00 (CST-6)
Location: WEST TULSA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in WASHINGTON, OKLAHOMA
From 20-OCT-19 21:00:00 to 20-OCT-19 21:00:00 (CST-6)
Location: OCHELATA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated to 60 mph at CR 3000 and Highway 75.

Hail in OKMULGEE, OKLAHOMA
From 20-OCT-19 21:03:00 to 20-OCT-19 21:03:00 (CST-6)
Location: BEGGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CREEK, OKLAHOMA
From 20-OCT-19 21:08:00 to 20-OCT-19 21:08:00 (CST-6)
Location: DRUMRIGHT
Magnitude: 2.50 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm Wind in ROGERS, OKLAHOMA
From 20-OCT-19 21:14:00 to 20-OCT-19 21:14:00 (CST-6)
Location: OOLOGAH
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts were estimated to 65 mph.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 20-OCT-19 21:19:00 to 20-OCT-19 21:19:00 (CST-6)
Location: OOLOGAH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts were estimated to 70 mph.

Hail in OKMULGEE, OKLAHOMA
From 20-OCT-19 21:57:00 to 20-OCT-19 21:57:00 (CST-6)
Location: BLACKSTONE MINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TULSA, OKLAHOMA
From 20-OCT-19 21:08:00 to 20-OCT-19 21:08:00 (CST-6)
Location: SPERRY
Magnitude: 2.00 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in OKMULGEE, OKLAHOMA
From 20-OCT-19 21:08:00 to 20-OCT-19 21:08:00 (CST-6)
Location: BLACKSTONE MINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 20-OCT-19 22:07:00 to 20-OCT-19 22:07:00 (CST-6)
Location: BURNEY
Magnitude: 71.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were measured to 82 mph.

Thunderstorm Wind in OKMULGEE, OKLAHOMA
From 20-OCT-19 22:09:00 to 20-OCT-19 22:09:00 (CST-6)
Location: MORRIS
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down power lines.

Thunderstorm Wind in WAGONER, OKLAHOMA
From 20-OCT-19 22:10:00 to 20-OCT-19 22:10:00 (CST-6)
Location: LA BARGE
Magnitude: 65.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Strong thunderstorm wind damaged a gas station in Wagoner.

Hail in CREEK, OKLAHOMA
From 20-OCT-19 20:10:00 to 20-OCT-19 20:10:00 (CST-6)
Location: DRUMRIGHT
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in CREEK, OKLAHOMA
From 20-OCT-19 20:20:00 to 20-OCT-19 20:20:00 (CST-6)
Location: SILVER CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WAGONER, OKLAHOMA
From 20-OCT-19 22:10:00 to 20-OCT-19 22:10:00 (CST-6)
Location: LA BARGE
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind severely damaged the roof of a home.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 20-OCT-19 22:15:00 to 20-OCT-19 22:15:00 (CST-6)
Location: EUFAULA MUNI ARPT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station near Eufaula measured 61 mph thunderstorm wind gusts.

Hail in CREEK, OKLAHOMA
From 20-OCT-19 20:25:00 to 20-OCT-19 20:25:00 (CST-6)
Location: BRISTOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CREEK, OKLAHOMA
From 20-OCT-19 20:26:00 to 20-OCT-19 20:26:00 (CST-6)
Location: BRISTOW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CREEK, OKLAHOMA
From 20-OCT-19 20:43:00 to 20-OCT-19 20:43:00 (CST-6)
Location: KELLYVILLE
Magnitude: 1.25 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WAGONER, OKLAHOMA
From 20-OCT-19 22:21:00 to 20-OCT-19 22:21:00 (CST-6)
Location: LA BARGE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind snapped the trunks of several trees.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 20-OCT-19 22:24:00 to 20-OCT-19 22:24:00 (CST-6)
Location: CHECOTAH
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind snapped large tree limbs and blew down power lines.

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 20-OCT-19 22:32:00 to 20-OCT-19 22:32:00 (CST-6)
Location: MELVIN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts were estimated to 70 mph.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 20-OCT-19 22:35:00 to 20-OCT-19 22:35:00 (CST-6)
Location: BRAGGS
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind blew the roof off a barn near Braggs.