Severe thunderstorms tracked across much of the northern half of Kansas during the afternoon and evening hours on Thursday, May 6 before moving out of the area during the early morning hours Friday, May 7.  Two swaths of strong winds and large hail were caused by the storms Thursday night.  A southern swath of severe weather was caused by a supercell which moved through Dickinson, Morris, Lyon, and Osage counties.  Hail up to the size of baseballs was reported as well as strong winds up to 90 to 100 mph.  A house and its attached garage near Hope, KS were seriously damaged as a result of the strong winds just south of the supercell.  Other outbuildings were also destroyed near Hope.
Another swath of more widespread severe weather presented itself just south of the Kansas/Nebraska border as numerous supercells moved eastward through north central and northeastern Kansas.  Hail up to the size of baseballs was reported throughout much of the area during the late evening to overnight hours. Strong 80 mph winds caused a large amount of damage to outbuildings throughout Republic county.  Cars were also crushed under large trees which were snapped by the strong winds.

Hail in DICKINSON, KANSAS
From 06-MAY-10 20:37:00 to 06-MAY-10 20:42:00 (CST-6)
Location: DILLON
Magnitude: 2.50 
Reported by: Public

Thunderstorm Wind in WASHINGTON, KANSAS
From 06-MAY-10 22:40:00 to 06-MAY-10 22:45:00 (CST-6)
Location: GREENLEAF
Magnitude: 61.00 EG
Property damage: 2.00K
Reported by: Public

A total of 4 outbuildings were destroyed at this location as a result of a strong wind gust.

Hail in MORRIS, KANSAS
From 06-MAY-10 21:27:00 to 06-MAY-10 21:31:00 (CST-6)
Location: HELMICK
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in CLOUD, KANSAS
From 06-MAY-10 22:20:00 to 06-MAY-10 22:25:00 (CST-6)
Location: CLYDE
Magnitude: 70.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A total of 3 power poles were snapped off.

Hail in MORRIS, KANSAS
From 06-MAY-10 21:26:00 to 06-MAY-10 21:31:00 (CST-6)
Location: COUNCIL GROVE RES
Magnitude: 2.50 
Reported by: Public

Tennis ball to baseball sized hail was reported just west of Council Grove. This was a delayed report.

Thunderstorm Wind in MORRIS, KANSAS
From 06-MAY-10 21:27:00 to 06-MAY-10 21:32:00 (CST-6)
Location: HELMICK
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported an estimated 70 mph wind gust.

Hail in REPUBLIC, KANSAS
From 06-MAY-10 21:49:00 to 06-MAY-10 21:49:00 (CST-6)
Location: COURTLAND
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in POTTAWATOMIE, KANSAS
From 07-MAY-10 00:16:00 to 07-MAY-10 00:16:00 (CST-6)
Location: OLSBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RILEY, KANSAS
From 06-MAY-10 21:09:00 to 06-MAY-10 21:09:00 (CST-6)
Location: MANHATTAN
Magnitude: 0.88 
Reported by: Trained Spotter

There was pea sized hail covering the ground along with some nickel sized hail.

Hail in RILEY, KANSAS
From 06-MAY-10 21:16:00 to 06-MAY-10 21:16:00 (CST-6)
Location: MANHATTAN
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in RILEY, KANSAS
From 07-MAY-10 00:46:00 to 07-MAY-10 00:46:00 (CST-6)
Location: RANDOLPH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in REPUBLIC, KANSAS
From 06-MAY-10 22:11:00 to 06-MAY-10 22:16:00 (CST-6)
Location: AGENDA
Magnitude: 70.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: COOP Observer

Numerous power lines were blown down around town. A carport was blown onto the roof of a home.  A travel trailer was blown on its side.

Thunderstorm Wind in DICKINSON, KANSAS
From 06-MAY-10 20:49:00 to 06-MAY-10 20:55:00 (CST-6)
Location: HOPE
Magnitude: 83.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The attached garage to a house near Hope, Kansas was completely destroyed. A separate work shop near the house also sustained major damage. An enclosed trailer was tossed in the air and deposited on its side 30 feet away. Many objects throughout the yard were also thrown about 100 yards as a result of 90 to 100 mph winds.

Thunderstorm Wind in CLOUD, KANSAS
From 06-MAY-10 22:20:00 to 06-MAY-10 22:24:00 (CST-6)
Location: AMES
Magnitude: 52.00 EG
Reported by: Trained Spotter

Branches were broken off of live mature hardwoods.

Thunderstorm Wind in WASHINGTON, KANSAS
From 06-MAY-10 22:25:00 to 06-MAY-10 22:27:00 (CST-6)
Location: WASHINGTON
Magnitude: 52.00 EG
Reported by: Public

An estimated 60 mph wind gust was reported by the public.

Hail in DICKINSON, KANSAS
From 06-MAY-10 20:49:00 to 06-MAY-10 20:53:00 (CST-6)
Location: NAVARRE
Magnitude: 1.75 
Reported by: Trained Spotter

A lot of quarter to golf ball sized hail was observed.

Hail in POTTAWATOMIE, KANSAS
From 06-MAY-10 21:08:00 to 06-MAY-10 21:12:00 (CST-6)
Location: SWAMP ANGEL
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in POTTAWATOMIE, KANSAS
From 07-MAY-10 00:55:00 to 07-MAY-10 00:55:00 (CST-6)
Location: GARRISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, KANSAS
From 07-MAY-10 00:57:00 to 07-MAY-10 01:01:00 (CST-6)
Location: HOLTON
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in REPUBLIC, KANSAS
From 06-MAY-10 21:55:00 to 06-MAY-10 22:00:00 (CST-6)
Location: KACKLEY
Magnitude: 61.00 EG
Reported by: Trained Spotter

A 2 foot diameter hackberry tree was split in half.

Thunderstorm Wind in REPUBLIC, KANSAS
From 06-MAY-10 21:45:00 to 06-MAY-10 21:50:00 (CST-6)
Location: COURTLAND
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were blown down. Powers lines were blown down in town.  A total for 4 buildings on the north edge of town were blown down.

Thunderstorm Wind in WASHINGTON, KANSAS
From 07-MAY-10 00:00:00 to 07-MAY-10 00:05:00 (CST-6)
Location: KIMEO
Magnitude: 52.00 EG
Reported by: COOP Observer

Numerous 6 to 8 inch tree limbs were down around the property.

Thunderstorm Wind in JEFFERSON, KANSAS
From 07-MAY-10 01:06:00 to 07-MAY-10 01:08:00 (CST-6)
Location: GRANTVILLE
Magnitude: 52.00 EG
Reported by: Trained Spotter

A 9 inch diameter limb was blown out of a maple tree.

Thunderstorm Wind in REPUBLIC, KANSAS
From 06-MAY-10 22:12:00 to 06-MAY-10 22:17:00 (CST-6)
Location: NEW TABOR
Magnitude: 61.00 EG
Reported by: Trained Spotter

There were shredded trees throughout Munden. The town also lost power.

Hail in REPUBLIC, KANSAS
From 06-MAY-10 23:35:00 to 06-MAY-10 23:35:00 (CST-6)
Location: KACKLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLAY, KANSAS
From 06-MAY-10 23:40:00 to 06-MAY-10 23:40:00 (CST-6)
Location: BROUGHTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, KANSAS
From 07-MAY-10 00:01:00 to 07-MAY-10 00:01:00 (CST-6)
Location: HOLTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in JACKSON, KANSAS
From 07-MAY-10 00:01:00 to 07-MAY-10 00:01:00 (CST-6)
Location: NETAWAKA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OSAGE, KANSAS
From 06-MAY-10 22:27:00 to 06-MAY-10 22:31:00 (CST-6)
Location: OSAGE CITY
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LYON, KANSAS
From 06-MAY-10 22:04:00 to 06-MAY-10 22:04:00 (CST-6)
Location: ADMIRE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in REPUBLIC, KANSAS
From 06-MAY-10 22:12:00 to 06-MAY-10 22:12:00 (CST-6)
Location: NEW TABOR
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lots of nickel sized hail shredded trees around town.

Hail in MARSHALL, KANSAS
From 06-MAY-10 23:02:00 to 06-MAY-10 23:06:00 (CST-6)
Location: BESTWALL
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in OSAGE, KANSAS
From 06-MAY-10 22:35:00 to 06-MAY-10 22:35:00 (CST-6)
Location: LYNDON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

There was a brief period of nickel sized hail.

Hail in MORRIS, KANSAS
From 06-MAY-10 21:40:00 to 06-MAY-10 21:40:00 (CST-6)
Location: HOUCKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLOUD, KANSAS
From 06-MAY-10 23:15:00 to 06-MAY-10 23:15:00 (CST-6)
Location: HUSCHER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLOUD, KANSAS
From 06-MAY-10 23:24:00 to 06-MAY-10 23:29:00 (CST-6)
Location: AURORA
Magnitude: 2.50 
Reported by: Trained Spotter

Hail in POTTAWATOMIE, KANSAS
From 06-MAY-10 21:26:00 to 06-MAY-10 21:30:00 (CST-6)
Location: FLUSH
Magnitude: 1.75 
Reported by: Public

Hail in OSAGE, KANSAS
From 06-MAY-10 22:26:00 to 06-MAY-10 22:26:00 (CST-6)
Location: OSAGE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in REPUBLIC, KANSAS
From 06-MAY-10 21:49:00 to 06-MAY-10 21:52:00 (CST-6)
Location: COURTLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported an estimated 60 mph wind gust.