Severe thunderstorms occurred primarily over northeast Oklahoma during the evening hours of the 15th before shifting into southeast Oklahoma late in the evening and during the early morning hours of the 16th.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 15-MAY-09 19:31:00 to 15-MAY-09 19:31:00 (CST-6)
Location: FAIRFAX
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 some trees down.

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 15-MAY-09 19:39:00 to 15-MAY-09 19:39:00 (CST-6)
Location: PAWNEE
Magnitude: 57.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A spotter reported 65 mile an hour winds at Pawnee by amateur radio.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 15-MAY-09 20:07:00 to 15-MAY-09 20:07:00 (CST-6)
Location: OKESA
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The automated observing equipment at Bartlesville Municipal Airport recorded a 63 mile an hour wind gust.

Thunderstorm Wind in TULSA, OKLAHOMA
From 15-MAY-09 20:44:00 to 15-MAY-09 20:44:00 (CST-6)
Location: TULSA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm winds estimated at 60 miles an hour caused damage to property at the Mayfest celebration in downtown Tulsa.

Thunderstorm Wind in TULSA, OKLAHOMA
From 15-MAY-09 21:01:00 to 15-MAY-09 21:01:00 (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 near the intersection of Mingo and 91st Street South.

Hail in CREEK, OKLAHOMA
From 15-MAY-09 21:02:00 to 15-MAY-09 21:02:00 (CST-6)
Location: MILFAY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LE FLORE, OKLAHOMA
From 16-MAY-09 00:11:00 to 16-MAY-09 00:11:00 (CST-6)
Location: HEAVENER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TULSA, OKLAHOMA
From 15-MAY-09 21:05:00 to 15-MAY-09 21:05:00 (CST-6)
Location: BROKEN ARROW
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds estimated at 70 miles an hour blew down a large tree and a privacy fence near the intersection of 81st Street South of 145th East Avenue.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 15-MAY-09 21:10:00 to 15-MAY-09 21:10:00 (CST-6)
Location: VERDIGRIS
Magnitude: 57.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A spotter estimated a thunderstorm wind gust at 65 miles an hour.  The wind blew down a road sign.

Thunderstorm Wind in MAYES, OKLAHOMA
From 15-MAY-09 21:10:00 to 15-MAY-09 21:10:00 (CST-6)
Location: ADAIR
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager measured a 59 mile an hour wind gust with a hand held anemometer.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 15-MAY-09 22:00:00 to 15-MAY-09 22:00:00 (CST-6)
Location: GROVE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds estimated at 60 miles an hour blew down a street sign.

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 15-MAY-09 22:10:00 to 15-MAY-09 22:10:00 (CST-6)
Location: TAHLEQUAH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager estimated a thunderstorm wind gust to be in excess of 70 miles an hour.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 15-MAY-09 22:40:00 to 15-MAY-09 22:40:00 (CST-6)
Location: WESTVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager measured a 58 mile an hour thunderstorm wind gust with a hand held anemometer.

Hail in LATIMER, OKLAHOMA
From 16-MAY-09 00:03:00 to 16-MAY-09 00:03:00 (CST-6)
Location: BENGAL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PITTSBURG, OKLAHOMA
From 16-MAY-09 00:05:00 to 16-MAY-09 00:05:00 (CST-6)
Location: BLANCO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OSAGE, OKLAHOMA
From 15-MAY-09 19:20:00 to 15-MAY-09 19:20:00 (CST-6)
Location: SHIDLER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The broadcast media reported a 60 mile an hour wind gust at Shidler.

Thunderstorm Wind in WASHINGTON, OKLAHOMA
From 15-MAY-09 20:08:00 to 15-MAY-09 20:08:00 (CST-6)
Location: BARTLESVILLE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A spotter recorded a 58 mile an hour wind gust with a hand held instrument.

Thunderstorm Wind in CRAIG, OKLAHOMA
From 15-MAY-09 21:12:00 to 15-MAY-09 21:12:00 (CST-6)
Location: CENTRALIA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public estimated a 60 mile an hour wind gust at Centralia.

Hail in ROGERS, OKLAHOMA
From 15-MAY-09 21:15:00 to 15-MAY-09 21:15:00 (CST-6)
Location: BUSHYHEAD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail was reported 4 miles east of Chelsea.