A frontal boundary extended across northeastern Oklahoma from an area of low pressure located over north-central Oklahoma. Severe thunderstorms developed during the late evening within the moist and unstable air mass south of the front. Some of these storms produced large hail up to tennis ball size across northeastern Oklahoma.

Hail in OSAGE, OKLAHOMA
From 08-APR-11 22:50:00 to 08-APR-11 22:50:00 (CST-6)
Location: WEBB CITY
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OSAGE, OKLAHOMA
From 08-APR-11 22:55:00 to 08-APR-11 22:55:00 (CST-6)
Location: BURBANK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Numerous trees and large tree limbs were broken or downed by thunderstorm wind.

Hail in OSAGE, OKLAHOMA
From 08-APR-11 22:58:00 to 08-APR-11 22:58:00 (CST-6)
Location: BURBANK
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm Wind in OSAGE, OKLAHOMA
From 08-APR-11 22:59:00 to 08-APR-11 22:59:00 (CST-6)
Location: BURBANK
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind damaged the roofs of several mobile homes along Highway 60.

Hail in OSAGE, OKLAHOMA
From 08-APR-11 23:03:00 to 08-APR-11 23:03:00 (CST-6)
Location: BURBANK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OSAGE, OKLAHOMA
From 08-APR-11 23:10:00 to 08-APR-11 23:10:00 (CST-6)
Location: SHIDLER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OSAGE, OKLAHOMA
From 08-APR-11 23:40:00 to 08-APR-11 23:40:00 (CST-6)
Location: PAWHUSKA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in OSAGE, OKLAHOMA
From 08-APR-11 23:44:00 to 08-APR-11 23:44:00 (CST-6)
Location: PAWHUSKA
Magnitude: 1.25 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in OSAGE, OKLAHOMA
From 08-APR-11 23:54:00 to 08-APR-11 23:54:00 (CST-6)
Location: PAWHUSKA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in OSAGE, OKLAHOMA
From 09-APR-11 00:20:00 to 09-APR-11 00:20:00 (CST-6)
Location: AVANT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in TULSA, OKLAHOMA
From 09-APR-11 00:30:00 to 09-APR-11 00:30:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in WASHINGTON, OKLAHOMA
From 09-APR-11 00:35:00 to 09-APR-11 00:35:00 (CST-6)
Location: RAMONA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, OKLAHOMA
From 09-APR-11 00:37:00 to 09-APR-11 00:37:00 (CST-6)
Location: VERA
Magnitude: 1.75 
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in ROGERS, OKLAHOMA
From 09-APR-11 00:58:00 to 09-APR-11 00:58:00 (CST-6)
Location: OOLOGAH
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MAYES, OKLAHOMA
From 09-APR-11 01:24:00 to 09-APR-11 01:24:00 (CST-6)
Location: ADAIR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in NOWATA, OKLAHOMA
From 09-APR-11 01:35:00 to 09-APR-11 01:35:00 (CST-6)
Location: ALLUWE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MAYES, OKLAHOMA
From 09-APR-11 01:51:00 to 09-APR-11 01:51:00 (CST-6)
Location: ADAIR
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public