A strong upper level disturbance and associated frontal boundary generated a line of strong to severe thunderstorms surging southeast across central Kansas during the late evening hours on the 30th. Winds up to 65 mph and hail up to quarter size was reported.

Hail in RUSSELL, KANSAS
From 30-MAY-11 21:05:00 to 30-MAY-11 21:05:00 (CST-6)
Location: PARADISE
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 21:25:00 to 30-MAY-11 21:25:00 (CST-6)
Location: WALDO
Magnitude: 52.00 EG
Reported by: Trained Spotter

Winds were estimated around 60 mph.

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 21:34:00 to 30-MAY-11 21:34:00 (CST-6)
Location: MILBERGER
Magnitude: 55.00 MG
Reported by: Mesonet

Thunderstorm Wind in LINCOLN, KANSAS
From 30-MAY-11 22:22:00 to 30-MAY-11 22:22:00 (CST-6)
Location: SYLVAN GROVE
Magnitude: 56.00 EG
Reported by: Law Enforcement

Winds were estimated around 65 mph.

Thunderstorm Wind in LINCOLN, KANSAS
From 30-MAY-11 22:22:00 to 30-MAY-11 22:22:00 (CST-6)
Location: ASH GROVE
Magnitude: 50.00 MG
Reported by: Trained Spotter

Hail in BARTON, KANSAS
From 30-MAY-11 22:59:00 to 30-MAY-11 22:59:00 (CST-6)
Location: GREAT BEND
Magnitude: 0.75 
Reported by: Trained Spotter

Thunderstorm Wind in BUTLER, KANSAS
From 31-MAY-11 01:50:00 to 31-MAY-11 01:50:00 (CST-6)
Location: EL DORADO RES
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Newspaper

Winds estimated around 70 mph emanating from a squall line surging southeast caused some damage at El Dorado Lake during the predawn hours on the 31st. Two campers were damaged; one flipped at least twice and another flipped on its side. There was some tree damage as well.

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 22:02:00 to 30-MAY-11 22:02:00 (CST-6)
Location: LUCAS
Magnitude: 61.00 EG
Property damage: 35.00K
Reported by: Newspaper

Winds estimated around 70 mph produced damage in Lucas. Main street received damage to several buildings, including a bowed out wall, broken windows, roof damage, and some car window damage.

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 21:45:00 to 30-MAY-11 21:45:00 (CST-6)
Location: MILBERGER
Magnitude: 56.00 MG
Reported by: Mesonet

Thunderstorm Wind in BARTON, KANSAS
From 30-MAY-11 21:55:00 to 30-MAY-11 21:55:00 (CST-6)
Location: SUSANK
Magnitude: 52.00 EG
Reported by: Trained Spotter

Winds were estimated around 60 mph.

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 22:18:00 to 30-MAY-11 22:18:00 (CST-6)
Location: BUNKER HILL
Magnitude: 52.00 EG
Reported by: Amateur Radio

Winds were estimated around 60 mph.

Thunderstorm Wind in BARTON, KANSAS
From 30-MAY-11 22:20:00 to 30-MAY-11 22:20:00 (CST-6)
Location: PAWNEE ROCK
Magnitude: 52.00 EG
Reported by: Law Enforcement

Winds were estimated around 60 mph.

Hail in LINCOLN, KANSAS
From 30-MAY-11 22:22:00 to 30-MAY-11 22:22:00 (CST-6)
Location: SYLVAN GROVE
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in RUSSELL, KANSAS
From 30-MAY-11 22:02:00 to 30-MAY-11 22:02:00 (CST-6)
Location: WILSON LAKE
Magnitude: 52.00 EG
Reported by: Amateur Radio

Winds were estimated around 60 mph.

Hail in RUSSELL, KANSAS
From 30-MAY-11 22:17:00 to 30-MAY-11 22:17:00 (CST-6)
Location: BUNKER HILL
Magnitude: 1.00 
Reported by: Amateur Radio