Supercell thunderstorms developed in advance of a cold front and dryline during the late afternoon of Saturday May 21st.  Several of the supercell thunderstorms produced tornadoes including at least 2 brief touchdowns in Topeka.  The strongest tornado was rated an EF3 and hit the town of Reading Kansas.  In all there were 8 tornadoes across Northeast Kansas that evening.  There was one fatality which occurred in the town of Reading where a man was killed when his mobile home was destroyed. There were 5 injuries that required treatment in Reading.  The supercells also produced huge hailstones with some reported to be the size of softballs and numerous reports of baseball size hail in and around Topeka.

Funnel Cloud in LYON, KANSAS
From 21-MAY-11 19:49:00 to 21-MAY-11 19:49:00 (CST-6)
Location: EMPORIA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A brief funnel cloud was observed near Emporia prior to tornado touchdown.

Thunderstorm Wind in OSAGE, KANSAS
From 21-MAY-11 20:33:00 to 21-MAY-11 20:36:00 (CST-6)
Location: BARCLAY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager reported a 70 mph wind gust near Osage City.

Funnel Cloud in JEFFERSON, KANSAS
From 21-MAY-11 20:55:00 to 21-MAY-11 20:55:00 (CST-6)
Location: OSKALOOSA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager reported a funnel cloud near US 59 and Fairview Road near Oskaloosa.

Hail in JACKSON, KANSAS
From 21-MAY-11 19:00:00 to 21-MAY-11 19:02:00 (CST-6)
Location: MAYETTA
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:01:00 to 21-MAY-11 19:06:00 (CST-6)
Location: WINCHESTER
Magnitude: 2.00 
Reported by: COOP Observer

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:04:00 to 21-MAY-11 19:09:00 (CST-6)
Location: WINCHESTER
Magnitude: 2.50 
Reported by: COOP Observer

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:05:00 to 21-MAY-11 19:07:00 (CST-6)
Location: WINCHESTER
Magnitude: 1.25 
Reported by: Law Enforcement

Hail in BROWN, KANSAS
From 21-MAY-11 16:43:00 to 21-MAY-11 16:47:00 (CST-6)
Location: FAIRVIEW
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in OSAGE, KANSAS
From 21-MAY-11 20:43:00 to 21-MAY-11 20:44:00 (CST-6)
Location: LYNDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OSAGE, KANSAS
From 21-MAY-11 21:10:00 to 21-MAY-11 21:11:00 (CST-6)
Location: OSAGE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:08:00 to 21-MAY-11 19:13:00 (CST-6)
Location: WINCHESTER
Magnitude: 2.75 
Reported by: COOP Observer

Hail in OSAGE, KANSAS
From 21-MAY-11 21:15:00 to 21-MAY-11 21:20:00 (CST-6)
Location: OSAGE CITY
Magnitude: 2.75 
Reported by: Law Enforcement

Hail in FRANKLIN, KANSAS
From 21-MAY-11 21:26:00 to 21-MAY-11 21:28:00 (CST-6)
Location: CENTROPOLIS
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:35:00 to 21-MAY-11 17:38:00 (CST-6)
Location: (TOP)BILLARD ARPT TO
Magnitude: 1.50 
Reported by: Official NWS Observations

Hail in BROWN, KANSAS
From 21-MAY-11 17:38:00 to 21-MAY-11 17:41:00 (CST-6)
Location: EVEREST
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:30:00 to 21-MAY-11 17:33:00 (CST-6)
Location: MENOKEN
Magnitude: 1.50 
Reported by: NWS Employee

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:00:00 to 21-MAY-11 19:05:00 (CST-6)
Location: OSKALOOSA
Magnitude: 2.00 
Reported by: Storm Chaser

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:42:00 to 21-MAY-11 17:46:00 (CST-6)
Location: (TOP)BILLARD ARPT TO
Magnitude: 1.75 
Reported by: Official NWS Observations

Funnel Cloud in OSAGE, KANSAS
From 21-MAY-11 20:56:00 to 21-MAY-11 20:56:00 (CST-6)
Location: MELVERN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser witnessed a funnel cloud near Lyndon.

Thunderstorm Wind in DOUGLAS, KANSAS
From 21-MAY-11 21:40:00 to 21-MAY-11 21:43:00 (CST-6)
Location: WORDEN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

An emergency manager relayed a report from a storm chaser of 60 mph winds near Baldwin City.

Hail in LYON, KANSAS
From 21-MAY-11 19:25:00 to 21-MAY-11 19:25:00 (CST-6)
Location: AMERICUS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LYON, KANSAS
From 21-MAY-11 19:28:00 to 21-MAY-11 19:29:00 (CST-6)
Location: AMERICUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, KANSAS
From 21-MAY-11 19:25:00 to 21-MAY-11 19:29:00 (CST-6)
Location: HOYT
Magnitude: 1.75 
Reported by: Law Enforcement

Thunderstorm Wind in OSAGE, KANSAS
From 21-MAY-11 21:43:00 to 21-MAY-11 21:46:00 (CST-6)
Location: LOMAX
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 2.00K
Reported by: Emergency Manager

An emergency manager reported some minor damage to homes in Quenemo and one outbuilding destroyed by strong winds.

Hail in BROWN, KANSAS
From 21-MAY-11 17:51:00 to 21-MAY-11 17:55:00 (CST-6)
Location: ROBINSON
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:40:00 to 21-MAY-11 17:45:00 (CST-6)
Location: TOPEKA
Magnitude: 2.75 
Reported by: Trained Spotter

Baseball sized hail was reported at 29th Avenue and Meriden Road in Topeka.

Hail in POTTAWATOMIE, KANSAS
From 21-MAY-11 17:46:00 to 21-MAY-11 17:50:00 (CST-6)
Location: ST MARYS
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:50:00 to 21-MAY-11 16:51:00 (CST-6)
Location: MENOKEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:47:00 to 21-MAY-11 16:47:00 (CST-6)
Location: SILVER LAKE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in POTTAWATOMIE, KANSAS
From 21-MAY-11 17:48:00 to 21-MAY-11 17:52:00 (CST-6)
Location: ST MARYS
Magnitude: 1.75 
Reported by: Trained Spotter

Tornado in DOUGLAS, KANSAS
From 21-MAY-11 21:41:00 to 21-MAY-11 21:41:00 (CST-6)
Location: WORDEN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A storm chaser witnessed a brief tornado touchdown just east of highway 56 and south of highway 59 in southern Douglas County.  The tornado dissipated after 15 seconds and did no damage.  The report was relayed by the County EM.

Tornado in FRANKLIN, KANSAS
From 21-MAY-11 21:48:00 to 21-MAY-11 21:52:00 (CST-6)
Location: POMONA
Tornado F-scale: EF0
Reported by: NWS Storm Survey

This segment is the extension of the tornado that hit Quenemo in Osage county and weakened as it moved into Franklin County.  Only sporadic tree damage was noted in Franklin County as the tornado weakened before dissipating.

Tornado in SHAWNEE, KANSAS
From 21-MAY-11 17:16:00 to 21-MAY-11 17:20:00 (CST-6)
Location: PAULINE
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A well defined rotating wall cloud produced a visible funnel cloud.  The circulation associated with the funnel cloud briefly reached the ground and produced damage along a 1.2 mile long path producing EF0 damage along the way.

Hail in WABAUNSEE, KANSAS
From 21-MAY-11 16:30:00 to 21-MAY-11 16:34:00 (CST-6)
Location: BRADFORD
Magnitude: 1.75 
Reported by: Public

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:53:00 to 21-MAY-11 16:54:00 (CST-6)
Location: DOVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:53:00 to 21-MAY-11 16:57:00 (CST-6)
Location: DOVER
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in DOUGLAS, KANSAS
From 21-MAY-11 21:38:00 to 21-MAY-11 21:42:00 (CST-6)
Location: WORDEN
Magnitude: 1.75 
Reported by: Emergency Manager

Tornado in SHAWNEE, KANSAS
From 21-MAY-11 17:35:00 to 21-MAY-11 17:39:00 (CST-6)
Location: TOPEKA
Tornado F-scale: EF0
Reported by: Emergency Manager

Another brief weak tornado circulation reached the ground with sporadic minor structural and tree damaged noted along this path. Some rear flank downdraft damage also occurred along the southeast flank of the narrow tornado damage. Input on the begin and end points provided by Emergency Management.

Tornado in JEFFERSON, KANSAS
From 21-MAY-11 18:20:00 to 21-MAY-11 18:21:00 (CST-6)
Location: OZAWKIE
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A brief and weak tornado which began as a waterspout over Lake Perry came ashore and produced tree damage around Lakeside Village. One tree fell on a mobile home and entrapped the resident for a period of time. No injuries were reported.

Hail in JACKSON, KANSAS
From 21-MAY-11 19:25:00 to 21-MAY-11 19:30:00 (CST-6)
Location: HOYT
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in WABAUNSEE, KANSAS
From 21-MAY-11 16:24:00 to 21-MAY-11 16:25:00 (CST-6)
Location: ESKRIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NEMAHA, KANSAS
From 21-MAY-11 16:35:00 to 21-MAY-11 16:36:00 (CST-6)
Location: SABETHA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:35:00 to 21-MAY-11 16:36:00 (CST-6)
Location: VALENCIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OSAGE, KANSAS
From 21-MAY-11 22:10:00 to 21-MAY-11 22:10:00 (CST-6)
Location: MELVERN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, KANSAS
From 21-MAY-11 23:05:00 to 21-MAY-11 23:07:00 (CST-6)
Location: PEORIA
Magnitude: 1.25 
Reported by: Public

Hail in FRANKLIN, KANSAS
From 21-MAY-11 23:12:00 to 21-MAY-11 23:13:00 (CST-6)
Location: PEORIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in POTTAWATOMIE, KANSAS
From 21-MAY-11 17:46:00 to 21-MAY-11 17:47:00 (CST-6)
Location: ST MARYS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in JACKSON, KANSAS
From 21-MAY-11 19:30:00 to 21-MAY-11 19:34:00 (CST-6)
Location: MAYETTA
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in LYON, KANSAS
From 21-MAY-11 19:34:00 to 21-MAY-11 19:35:00 (CST-6)
Location: AMERICUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LYON, KANSAS
From 21-MAY-11 19:31:00 to 21-MAY-11 19:35:00 (CST-6)
Location: EMPORIA
Magnitude: 1.75 
Reported by: Law Enforcement

Tornado in LYON, KANSAS
From 21-MAY-11 19:50:00 to 21-MAY-11 19:54:00 (CST-6)
Location: EMPORIA
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado first touched down northeast of the Emporia State University campus and proceeded northeast. Several large trees were snapped, a chimney collapsed on top of a home and some farm outbuildings were heavily damaged. This tornado lifted before reaching the town of Reading.

Hail in NEMAHA, KANSAS
From 21-MAY-11 16:13:00 to 21-MAY-11 16:14:00 (CST-6)
Location: CORNING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in NEMAHA, KANSAS
From 21-MAY-11 16:13:00 to 21-MAY-11 16:14:00 (CST-6)
Location: CORNING
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 20:01:00 to 21-MAY-11 20:01:00 (CST-6)
Location: ELMONT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LYON, KANSAS
From 21-MAY-11 19:47:00 to 21-MAY-11 19:48:00 (CST-6)
Location: LANG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, KANSAS
From 21-MAY-11 20:15:00 to 21-MAY-11 20:19:00 (CST-6)
Location: NORTONVILLE
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:41:00 to 21-MAY-11 17:44:00 (CST-6)
Location: TECUMSEH
Magnitude: 1.50 
Reported by: NWS Employee

Hail in JEFFERSON, KANSAS
From 21-MAY-11 17:57:00 to 21-MAY-11 18:01:00 (CST-6)
Location: GRANTVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in WABAUNSEE, KANSAS
From 21-MAY-11 17:58:00 to 21-MAY-11 18:02:00 (CST-6)
Location: ALMA
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in WABAUNSEE, KANSAS
From 21-MAY-11 16:30:00 to 21-MAY-11 16:35:00 (CST-6)
Location: ESKRIDGE
Magnitude: 2.50 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 19:44:00 to 21-MAY-11 19:46:00 (CST-6)
Location: SILVER LAKE
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in LYON, KANSAS
From 21-MAY-11 19:46:00 to 21-MAY-11 19:47:00 (CST-6)
Location: ALLEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, KANSAS
From 21-MAY-11 20:31:00 to 21-MAY-11 20:32:00 (CST-6)
Location: OZAWKIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BROWN, KANSAS
From 21-MAY-11 16:57:00 to 21-MAY-11 17:00:00 (CST-6)
Location: HAMLIN
Magnitude: 1.50 
Reported by: Storm Chaser

Hail in JEFFERSON, KANSAS
From 21-MAY-11 19:44:00 to 21-MAY-11 19:48:00 (CST-6)
Location: NORTONVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LYON, KANSAS
From 21-MAY-11 19:55:00 to 21-MAY-11 19:59:00 (CST-6)
Location: ALLEN
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:00:00 to 21-MAY-11 17:04:00 (CST-6)
Location: DOVER
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:00:00 to 21-MAY-11 17:05:00 (CST-6)
Location: TOPEKA
Magnitude: 3.50 
Reported by: Trained Spotter

Hail in JACKSON, KANSAS
From 21-MAY-11 17:02:00 to 21-MAY-11 17:04:00 (CST-6)
Location: HOYT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:40:00 to 21-MAY-11 17:45:00 (CST-6)
Location: (TOP)BILLARD ARPT TO
Magnitude: 2.50 
Reported by: Public

Hail broke car windows at 6th and Croco Road. One injury was reported from the broken windows.

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:42:00 to 21-MAY-11 17:46:00 (CST-6)
Location: TOPEKA
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in FRANKLIN, KANSAS
From 21-MAY-11 23:14:00 to 21-MAY-11 23:14:00 (CST-6)
Location: PEORIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:57:00 to 21-MAY-11 17:02:00 (CST-6)
Location: TOPEKA
Magnitude: 5.25 
Reported by: Trained Spotter

Hail to the size of 5.25 inches was measured on the west side of Topeka.

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:46:00 to 21-MAY-11 17:49:00 (CST-6)
Location: TECUMSEH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:23:00 to 21-MAY-11 17:24:00 (CST-6)
Location: (TOP)BILLARD ARPT TO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in JEFFERSON, KANSAS
From 21-MAY-11 18:00:00 to 21-MAY-11 18:04:00 (CST-6)
Location: MERIDEN
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:50:00 to 21-MAY-11 17:54:00 (CST-6)
Location: TECUMSEH
Magnitude: 1.75 
Reported by: Law Enforcement

Thunderstorm Wind in SHAWNEE, KANSAS
From 21-MAY-11 17:27:00 to 21-MAY-11 17:39:00 (CST-6)
Location: MENOKEN
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Employee

Large tree limbs were seen broken on 21st Avenue and Wanamaker Boulevard in Topeka. At Croco Road and 29th Avenue damage at the baseball fields were observed and a fifth wheel trailer was overturned.

Hail in JACKSON, KANSAS
From 21-MAY-11 17:18:00 to 21-MAY-11 17:19:00 (CST-6)
Location: DENISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:25:00 to 21-MAY-11 17:26:00 (CST-6)
Location: TOPEKA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:27:00 to 21-MAY-11 17:29:00 (CST-6)
Location: TOPEKA
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:37:00 to 21-MAY-11 16:38:00 (CST-6)
Location: DOVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 16:40:00 to 21-MAY-11 16:43:00 (CST-6)
Location: DOVER
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in BROWN, KANSAS
From 21-MAY-11 16:41:00 to 21-MAY-11 16:41:00 (CST-6)
Location: FAIRVIEW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in SHAWNEE, KANSAS
From 21-MAY-11 17:10:00 to 21-MAY-11 17:25:00 (CST-6)
Location: AUBURN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A funnel cloud witnessed by many people including an off-duty National Weather Service meteorologist formed near Auburn and persisted for approximately 15 minutes before eventually dissipating.

Funnel Cloud in SHAWNEE, KANSAS
From 21-MAY-11 17:47:00 to 21-MAY-11 18:00:00 (CST-6)
Location: (TOP)BILLARD ARPT TO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

As the supercell moved over the National Weather Service office in Topeka the staff observed a funnel cloud, which persisted for approximately 13 mintues.

Funnel Cloud in JEFFERSON, KANSAS
From 21-MAY-11 18:30:00 to 21-MAY-11 18:30:00 (CST-6)
Location: OSKALOOSA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a brief funnel cloud near Oskaloosa.

Hail in JEFFERSON, KANSAS
From 21-MAY-11 18:06:00 to 21-MAY-11 18:06:00 (CST-6)
Location: OZAWKIE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, KANSAS
From 21-MAY-11 18:04:00 to 21-MAY-11 18:09:00 (CST-6)
Location: OZAWKIE
Magnitude: 2.00 
Reported by: NWS Employee

Hail in JEFFERSON, KANSAS
From 21-MAY-11 18:04:00 to 21-MAY-11 18:09:00 (CST-6)
Location: OZAWKIE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:27:00 to 21-MAY-11 17:31:00 (CST-6)
Location: TOPEKA
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in JEFFERSON, KANSAS
From 21-MAY-11 18:15:00 to 21-MAY-11 18:16:00 (CST-6)
Location: OSKALOOSA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:29:00 to 21-MAY-11 17:31:00 (CST-6)
Location: TOPEKA
Magnitude: 1.25 
Reported by: NWS Employee

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:33:00 to 21-MAY-11 17:38:00 (CST-6)
Location: TOPEKA
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in SHAWNEE, KANSAS
From 21-MAY-11 17:34:00 to 21-MAY-11 17:39:00 (CST-6)
Location: TOPEKA
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in POTTAWATOMIE, KANSAS
From 21-MAY-11 18:22:00 to 21-MAY-11 18:24:00 (CST-6)
Location: ST MARYS
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in JACKSON, KANSAS
From 21-MAY-11 18:31:00 to 21-MAY-11 18:31:00 (CST-6)
Location: HOLTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, KANSAS
From 21-MAY-11 18:51:00 to 21-MAY-11 18:56:00 (CST-6)
Location: MAYETTA
Magnitude: 2.00 
Reported by: Trained Spotter

Tornado in OSAGE, KANSAS
From 21-MAY-11 21:43:00 to 21-MAY-11 21:48:00 (CST-6)
Location: LOMAX
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado developed just west of Quenemo touching down on the west side of town. It destroyed two structures both garages producing winds around 90 mph.  The damage path continued east to around 2.5 miles southwest of Pomona in Franklin County where only minor tree damage was noted.

Tornado in OSAGE, KANSAS
From 21-MAY-11 20:20:00 to 21-MAY-11 20:24:00 (CST-6)
Location: BARCLAY
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A narrow damage path was noted to the northwest of the main tornado damage path associated with the Reading tornado.  This path featured damage to trees and a cow pen. Trees were blown down to the west and the cow pen was blown toward the northeast within this narrow path.  This tornado appeared to be separate from the main tornado that hit Reading and moved into Osage County.

Tornado in LYON, KANSAS
From 21-MAY-11 20:10:00 to 21-MAY-11 20:20:00 (CST-6)
Location: READING
Tornado F-scale: EF3
Property damage: 2.28M
Reported by: NWS Storm Survey

Another tornado developed 3 miles southwest of Reading.  This tornado proceeded to hit the town of Reading producing EF3 damage in the city.  The tornado continued on a path that took it  into Osage County Kansas where it produced additional damage before lifting approximately 4 miles south of Osage City.  A single story home in Reading was swept off its foundation. There were several two story homes with significant damage to the second story or completely removed.  A well anchored mobile home was lofted and thrown 50 yards into a tree. Vehicles were rolled and large chemical tank was thrown 100 yards.  Winds estimated at 140 mph.

Tornado in OSAGE, KANSAS
From 21-MAY-11 20:20:00 to 21-MAY-11 20:30:00 (CST-6)
Location: BARCLAY
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado that hit Reading then moved out of Lyon County and into Osage County. It produced EF1 damage at one farmstead in Osage County before weakening and producing additional minor and sporadic tree damage.  This segment is that  portion of the tornado that moved out of Lyon County and into Osage County before dissipating south of Osage City.  Another separate EF0 tornado was discovered on the northwest periphery of this main tornado track.