A dry line over western Oklahoma shifted to central Oklahoma during the afternoon. Warm...moist...and very unstable air was in place over eastern Oklahoma ahead of the boundary. Thunderstorms formed on the dry line during the evening and moved northeast across northeastern Oklahoma. Favorable wind shear resulted in supercell thunderstorm development with several damaging tornadoes and large hail occurring over Pawnee and Osage Counties. A line of severe thunderstorms formed on a cold front approaching the area from the northwest and those storms moved through late in the evening and during the early morning hours. Several tornadoes and damaging wind occurred from those storms.

Thunderstorm Wind in SEQUOYAH, OKLAHOMA
From 02-MAY-08 03:35:00 to 02-MAY-08 03:35:00 (CST-6)
Location: SALLISAW
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds estimated at 70 miles an hour blew down several trees just north of Sallisaw.

Hail in WASHINGTON, OKLAHOMA
From 02-MAY-08 01:05:00 to 02-MAY-08 01:05:00 (CST-6)
Location: COPAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in WAGONER, OKLAHOMA
From 02-MAY-08 02:22:00 to 02-MAY-08 02:22:00 (CST-6)
Location: OKAY
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds estimated at 60 miles an hour blew down power lines.

Tornado in OSAGE, OKLAHOMA
From 01-MAY-08 19:37:00 to 01-MAY-08 20:12:00 (CST-6)
Location: FAIRFAX
Tornado F-scale: EF1
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado damaged the roofs of two homes, caused extensive tree damage, and blew down several power poles. This tornado was observed by several storm chasers.

Tornado in OSAGE, OKLAHOMA
From 01-MAY-08 20:06:00 to 01-MAY-08 20:17:00 (CST-6)
Location: PAWHUSKA
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado damaged trees and blew down power lines. Several storm chasers observed this tornado.

Tornado in CREEK, OKLAHOMA
From 02-MAY-08 00:45:00 to 02-MAY-08 00:51:00 (CST-6)
Location: BRISTOW
Tornado F-scale: EF0
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado destroyed a barn, damaged trees, and blew down power lines.

Tornado in MAYES, OKLAHOMA
From 02-MAY-08 02:03:00 to 02-MAY-08 02:03:00 (CST-6)
Location: PRYOR
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado severely damaged the roof of a home and blew down trees and power lines.

Tornado in ROGERS, OKLAHOMA
From 02-MAY-08 02:03:00 to 02-MAY-08 02:04:00 (CST-6)
Location: TIAWAH
Tornado F-scale: EF1
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado damaged trees and blew down power poles. This tornado continued into Mayes County.

Tornado in PAWNEE, OKLAHOMA
From 01-MAY-08 19:25:00 to 01-MAY-08 19:35:00 (CST-6)
Location: SKEDEE
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado caused structural damage to the roof of a home, resulted in extensive damage to trees, and blew down several power poles. This tornado was observed by several storm chasers.

Thunderstorm Wind in LATIMER, OKLAHOMA
From 02-MAY-08 03:43:00 to 02-MAY-08 03:43:00 (CST-6)
Location: RED OAK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Thunderstorm winds estimated at 60 miles an hour blew down many large tree limbs.

Hail in LE FLORE, OKLAHOMA
From 02-MAY-08 05:22:00 to 02-MAY-08 05:22:00 (CST-6)
Location: WHITESBORO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in PUSHMATAHA, OKLAHOMA
From 02-MAY-08 05:36:00 to 02-MAY-08 05:36:00 (CST-6)
Location: SNOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LE FLORE, OKLAHOMA
From 02-MAY-08 06:17:00 to 02-MAY-08 06:17:00 (CST-6)
Location: OCTAVIA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm Wind in WAGONER, OKLAHOMA
From 02-MAY-08 02:10:00 to 02-MAY-08 02:10:00 (CST-6)
Location: PORTER
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma mesonet site near Porter recorded a 58 mile an hour wind gust.

Thunderstorm Wind in MAYES, OKLAHOMA
From 02-MAY-08 02:15:00 to 02-MAY-08 02:15:00 (CST-6)
Location: ADAIR
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma mesonet site near Adair recorded a 60 mile an hour wind gust.

Thunderstorm Wind in OTTAWA, OKLAHOMA
From 02-MAY-08 02:29:00 to 02-MAY-08 02:29:00 (CST-6)
Location: PICHER
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds estimated at 70 miles an hour blew down a large tree. The tree took out power lines when it fell.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 02-MAY-08 02:42:00 to 02-MAY-08 02:42:00 (CST-6)
Location: GROVE
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 70 miles an hour blew down numerous trees and power lines.

Thunderstorm Wind in SEQUOYAH, OKLAHOMA
From 02-MAY-08 02:56:00 to 02-MAY-08 02:56:00 (CST-6)
Location: GORE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated at 70 miles an hour snapped a tree off at the trunk.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 02-MAY-08 03:04:00 to 02-MAY-08 03:04:00 (CST-6)
Location: COLCORD
Magnitude: 70.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 80 miles an hour blew the roofs off of two outbuildings.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 02-MAY-08 03:04:00 to 02-MAY-08 03:04:00 (CST-6)
Location: COLCORD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 70 miles an hour blew down a large tree. The tree blocked a road.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 02-MAY-08 03:10:00 to 02-MAY-08 03:10:00 (CST-6)
Location: WATTS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm winds estimated at 60 miles an hour blew down power lines.

Hail in PITTSBURG, OKLAHOMA
From 02-MAY-08 02:48:00 to 02-MAY-08 02:48:00 (CST-6)
Location: MC ALESTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado in MAYES, OKLAHOMA
From 02-MAY-08 02:04:00 to 02-MAY-08 02:15:00 (CST-6)
Location: PRYOR
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado developed over extreme eastern Rogers County and moved into western Mayes County. The tornado severely damaged the roofs of several homes, downed numerous trees, blew down power poles, and injured two people in Mayes County.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 02-MAY-08 02:51:00 to 02-MAY-08 02:51:00 (CST-6)
Location: KANSAS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 70 miles an hour blew down a large tree. The tree blocked a road.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 02-MAY-08 02:52:00 to 02-MAY-08 02:52:00 (CST-6)
Location: WEBBERS FALLS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated at 70 miles an hour blew down numerous trees.

Thunderstorm Wind in OTTAWA, OKLAHOMA
From 02-MAY-08 02:55:00 to 02-MAY-08 02:55:00 (CST-6)
Location: WYANDOTTE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Thunderstorm winds estimated at 60 miles an hours blew down numerous large tree limbs.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 02-MAY-08 03:10:00 to 02-MAY-08 03:10:00 (CST-6)
Location: WESTVILLE
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma mesonet site near Westville measured a 68 mile an hour wind gust.

Thunderstorm Wind in HASKELL, OKLAHOMA
From 02-MAY-08 03:13:00 to 02-MAY-08 03:13:00 (CST-6)
Location: STIGLER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 70 miles an hour blew down a few trees.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 02-MAY-08 03:15:00 to 02-MAY-08 03:15:00 (CST-6)
Location: STILWELL
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm winds estimated at 60 miles an hour blew down power lines.

Thunderstorm Wind in CREEK, OKLAHOMA
From 02-MAY-08 01:15:00 to 02-MAY-08 01:15:00 (CST-6)
Location: SLICK
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Post Office

Thunderstorm winds estimated at 60 miles an hour blew down power lines.

Hail in OSAGE, OKLAHOMA
From 02-MAY-08 00:40:00 to 02-MAY-08 00:40:00 (CST-6)
Location: NELAGONEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in NOWATA, OKLAHOMA
From 02-MAY-08 01:10:00 to 02-MAY-08 01:10:00 (CST-6)
Location: WANN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated at 60 miles an hour blew down numerous large tree limbs.

Thunderstorm Wind in TULSA, OKLAHOMA
From 02-MAY-08 01:22:00 to 02-MAY-08 01:22:00 (CST-6)
Location: TULSA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs.

Thunderstorm Wind in CRAIG, OKLAHOMA
From 02-MAY-08 02:00:00 to 02-MAY-08 02:00:00 (CST-6)
Location: CENTRALIA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma mesonet site east of Centralia measured a 60 mile an hour wind gust.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 02-MAY-08 02:00:00 to 02-MAY-08 02:00:00 (CST-6)
Location: HASKELL
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma mesonet site near Haskell recorded a 68 mile an hour wind gust.

Hail in MUSKOGEE, OKLAHOMA
From 02-MAY-08 02:02:00 to 02-MAY-08 02:02:00 (CST-6)
Location: JAMESVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in CREEK, OKLAHOMA
From 02-MAY-08 00:46:00 to 02-MAY-08 00:46:00 (CST-6)
Location: BRISTOW
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 70 miles an hour blew down numerous large tree limbs.  A few power poles were also blown down.

Hail in WASHINGTON, OKLAHOMA
From 02-MAY-08 01:10:00 to 02-MAY-08 01:10:00 (CST-6)
Location: COPAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TULSA, OKLAHOMA
From 02-MAY-08 01:12:00 to 02-MAY-08 01:12:00 (CST-6)
Location: SAND SPGS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in TULSA, OKLAHOMA
From 02-MAY-08 01:22:00 to 02-MAY-08 01:22:00 (CST-6)
Location: OWASSO
Magnitude: 52.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds estimated at 60 miles an hour caused a hotel that was under construction to partially collapse.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 02-MAY-08 01:56:00 to 02-MAY-08 01:56:00 (CST-6)
Location: CLAREMORE
Magnitude: 70.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated at 80 miles hour did structural damage to buildings and to a mobile home. Power lines were also blown down.

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 02-MAY-08 02:22:00 to 02-MAY-08 02:22:00 (CST-6)
Location: SCIPIO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated to 60 mph blew down large tree limbs.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 02-MAY-08 01:20:00 to 02-MAY-08 01:20:00 (CST-6)
Location: TALALA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Thunderstorm winds estimated to 60 mph blew down large tree limbs.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 01-MAY-08 23:40:00 to 01-MAY-08 23:40:00 (CST-6)
Location: BURBANK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated to 60 mph blew down large tree limbs.

Tornado in PAWNEE, OKLAHOMA
From 01-MAY-08 19:18:00 to 01-MAY-08 19:18:00 (CST-6)
Location: PAWNEE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several storm chasers observed a brief tornado touchdown in open country northeast of town. A survey of the area by NWS personnel found no damage resulting from this tornado.

Hail in OSAGE, OKLAHOMA
From 01-MAY-08 20:22:00 to 01-MAY-08 20:22:00 (CST-6)
Location: PAWHUSKA
Magnitude: 1.75 
Property damage: 50.00K
Reported by: Public

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 01-MAY-08 23:40:00 to 01-MAY-08 23:40:00 (CST-6)
Location: PAWNEE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated to 65 mph blew down large tree limbs.

Hail in PAWNEE, OKLAHOMA
From 01-MAY-08 18:54:00 to 01-MAY-08 18:54:00 (CST-6)
Location: PAWNEE
Magnitude: 1.75 
Property damage: 50.00K
Reported by: Trained Spotter

Hail in OSAGE, OKLAHOMA
From 01-MAY-08 19:11:00 to 01-MAY-08 19:11:00 (CST-6)
Location: SHIDLER
Magnitude: 2.75 
Property damage: 50.00K
Reported by: Storm Chaser

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 02-MAY-08 02:30:00 to 02-MAY-08 02:30:00 (CST-6)
Location: CHECOTAH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds estimated to 70 mph blew down large tree limbs.

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 02-MAY-08 02:46:00 to 02-MAY-08 02:46:00 (CST-6)
Location: TAHLEQUAH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm winds estimated to 60 mph blew down large tree limbs.

Hail in OSAGE, OKLAHOMA
From 02-MAY-08 00:33:00 to 02-MAY-08 00:33:00 (CST-6)
Location: HOMINY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio