Supercell thunderstorms developed along a cold front/dry line boundary during the late afternoon and early evening of May 9th, 2016. The supercell thunderstorms were prolific large hail and damaging wind producers, with numerous rounds of large hail reported, especially across eastern Sedgwick County, Kansas, including the city of Wichita.  Hail up to the size of golfballs were reported along with reports of 70 mph winds.

Hail in KINGMAN, KANSAS
From 09-MAY-16 14:10:00 to 09-MAY-16 14:10:00 (CST-6)
Location: CUNNINGHAM
Magnitude: 1.00 
Reported by: Law Enforcement

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:13:00 to 09-MAY-16 16:13:00 (CST-6)
Location: COLWICH
Magnitude: 0.88 
Reported by: Emergency Manager

Thunderstorm Wind in HARPER, KANSAS
From 09-MAY-16 15:26:00 to 09-MAY-16 15:26:00 (CST-6)
Location: ATTICA
Magnitude: 61.00 EG
Property damage: 0.50K
Reported by: Law Enforcement

Some tree damage was reported.  Also dime size hail was reported.

Hail in RICE, KANSAS
From 09-MAY-16 15:25:00 to 09-MAY-16 15:25:00 (CST-6)
Location: STERLING
Magnitude: 1.75 
Reported by: Emergency Manager

Hail in RICE, KANSAS
From 09-MAY-16 15:25:00 to 09-MAY-16 15:25:00 (CST-6)
Location: ALDEN
Magnitude: 0.88 
Reported by: Amateur Radio

Hail in HARPER, KANSAS
From 09-MAY-16 16:33:00 to 09-MAY-16 16:33:00 (CST-6)
Location: BLUFF CITY
Magnitude: 0.75 
Reported by: Emergency Manager

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:34:00 to 09-MAY-16 16:34:00 (CST-6)
Location: MAIZE
Magnitude: 0.88 
Reported by: Broadcast Media

Reported by Kfdi Radio.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:39:00 to 09-MAY-16 16:39:00 (CST-6)
Location: (ICT)WICHITA ARPT
Magnitude: 0.88 
Reported by: Amateur Radio

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:43:00 to 09-MAY-16 16:43:00 (CST-6)
Location: (ICT)WICHITA ARPT
Magnitude: 0.75 
Reported by: Official NWS Observations

The hail was pea to penny size at the National Weather Service office.

Thunderstorm Wind in SEDGWICK, KANSAS
From 09-MAY-16 16:44:00 to 09-MAY-16 16:44:00 (CST-6)
Location: WICHITA
Magnitude: 56.00 EG
Property damage: 1.00K
Reported by: Social Media

Six to seven inch tree knocked down.

Hail in RENO, KANSAS
From 09-MAY-16 14:37:00 to 09-MAY-16 14:37:00 (CST-6)
Location: TURON
Magnitude: 1.00 
Reported by: Law Enforcement

Forty to fifty mph winds were also reported.

Hail in RENO, KANSAS
From 09-MAY-16 14:45:00 to 09-MAY-16 14:45:00 (CST-6)
Location: SYLVIA
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in HARPER, KANSAS
From 09-MAY-16 14:49:00 to 09-MAY-16 14:49:00 (CST-6)
Location: ATTICA
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in RENO, KANSAS
From 09-MAY-16 14:51:00 to 09-MAY-16 14:51:00 (CST-6)
Location: SYLVIA
Magnitude: 1.00 
Reported by: Law Enforcement

The hail was dime to quarter size.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 17:01:00 to 09-MAY-16 17:01:00 (CST-6)
Location: (IAB) MCCONNELL ARPT
Magnitude: 0.75 
Reported by: AWOS

Thunderstorm Wind in BUTLER, KANSAS
From 09-MAY-16 17:07:00 to 09-MAY-16 17:07:00 (CST-6)
Location: ROSE HILL
Magnitude: 52.00 EG
Reported by: Trained Spotter

Also penny sized hail was reported.

Hail in HARPER, KANSAS
From 09-MAY-16 17:11:00 to 09-MAY-16 17:11:00 (CST-6)
Location: BLUFF CITY
Magnitude: 1.75 
Reported by: Social Media

Hail in RICE, KANSAS
From 09-MAY-16 15:46:00 to 09-MAY-16 15:46:00 (CST-6)
Location: GENESEO
Magnitude: 0.88 
Reported by: Broadcast Media

Thunderstorm Wind in HARPER, KANSAS
From 09-MAY-16 15:26:00 to 09-MAY-16 15:26:00 (CST-6)
Location: ATTICA
Magnitude: 56.00 EG
Property damage: 20.00K
Reported by: Emergency Manager

Trees were blown down across town. Some of the trees were 12 inches in diameter.

Hail in RICE, KANSAS
From 09-MAY-16 15:34:00 to 09-MAY-16 15:34:00 (CST-6)
Location: LYONS
Magnitude: 1.75 
Reported by: Emergency Manager

Thunderstorm Wind in SEDGWICK, KANSAS
From 09-MAY-16 16:47:00 to 09-MAY-16 16:47:00 (CST-6)
Location: DERBY
Magnitude: 61.00 EG
Reported by: Trained Spotter

Pea sized hail was also reported.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:47:00 to 09-MAY-16 16:47:00 (CST-6)
Location: (ICT)WICHITA ARPT
Magnitude: 1.00 
Reported by: Public

Reported by Kfdi radio.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:48:00 to 09-MAY-16 16:48:00 (CST-6)
Location: (ICT)WICHITA ARPT
Magnitude: 1.00 
Reported by: Public

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:50:00 to 09-MAY-16 16:50:00 (CST-6)
Location: (IAB) MCCONNELL ARPT
Magnitude: 0.88 
Reported by: Amateur Radio

Also 30 mph was also reported at Spirit Aviation.

Thunderstorm Wind in SUMNER, KANSAS
From 09-MAY-16 16:50:00 to 09-MAY-16 16:50:00 (CST-6)
Location: RIVERDALE
Magnitude: 61.00 EG
Property damage: 3.00K
Reported by: COOP Observer

A large hedge tree was blown down.

Hail in SUMNER, KANSAS
From 09-MAY-16 16:51:00 to 09-MAY-16 16:51:00 (CST-6)
Location: CALDWELL
Magnitude: 0.88 
Reported by: Fire Department/Rescue

Thunderstorm Wind in BUTLER, KANSAS
From 09-MAY-16 17:12:00 to 09-MAY-16 17:12:00 (CST-6)
Location: AUGUSTA
Magnitude: 52.00 MG
Reported by: Trained Spotter

A trained spotter reported the gust.

Thunderstorm Wind in BUTLER, KANSAS
From 09-MAY-16 17:20:00 to 09-MAY-16 17:20:00 (CST-6)
Location: TOWANDA
Magnitude: 56.00 EG
Reported by: Trained Spotter

A trained spotter reported the gust.

Thunderstorm Wind in KINGMAN, KANSAS
From 09-MAY-16 15:55:00 to 09-MAY-16 15:55:00 (CST-6)
Location: NORWICH
Magnitude: 56.00 EG
Reported by: Storm Chaser

Quarter sized hail was also reported.

Hail in RICE, KANSAS
From 09-MAY-16 16:00:00 to 09-MAY-16 16:00:00 (CST-6)
Location: GENESEO
Magnitude: 1.00 
Reported by: Broadcast Media

The quarter sized hail was also mixed with dime and nickel hail along Highway 4.

Hail in KINGMAN, KANSAS
From 09-MAY-16 15:55:00 to 09-MAY-16 15:55:00 (CST-6)
Location: NORWICH
Magnitude: 1.00 
Reported by: Storm Chaser

Sixty five mph wind gusts were also reported.

Hail in MCPHERSON, KANSAS
From 09-MAY-16 16:02:00 to 09-MAY-16 16:02:00 (CST-6)
Location: MC PHERSON
Magnitude: 0.75 
Reported by: Law Enforcement

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:15:00 to 09-MAY-16 16:15:00 (CST-6)
Location: MAIZE
Magnitude: 0.88 
Reported by: Broadcast Media

Reported by Kfdi radio.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:56:00 to 09-MAY-16 16:56:00 (CST-6)
Location: (AAO) JABARA ARPT
Magnitude: 0.75 
Reported by: Amateur Radio

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:58:00 to 09-MAY-16 16:58:00 (CST-6)
Location: EASTBOROUGH
Magnitude: 1.00 
Reported by: Social Media

Some pea to dime sized hail as well.

Hail in SEDGWICK, KANSAS
From 09-MAY-16 16:59:00 to 09-MAY-16 16:59:00 (CST-6)
Location: PARK CITY
Magnitude: 0.75 
Reported by: Trained Spotter

Thunderstorm Wind in BUTLER, KANSAS
From 09-MAY-16 17:33:00 to 09-MAY-16 17:33:00 (CST-6)
Location: LEON
Magnitude: 56.00 EG
Property damage: 40.00K
Reported by: Law Enforcement

Tree damage was reported across the city. An eighteen inch diameter tree was snapped.

Thunderstorm Wind in BUTLER, KANSAS
From 09-MAY-16 17:20:00 to 09-MAY-16 17:20:00 (CST-6)
Location: EL DORADO
Magnitude: 56.00 EG
Reported by: Trained Spotter

A trained spotter reported the gust.

Hail in SUMNER, KANSAS
From 09-MAY-16 17:49:00 to 09-MAY-16 17:49:00 (CST-6)
Location: CALDWELL
Magnitude: 1.75 
Reported by: Fire Department/Rescue

Hail in SUMNER, KANSAS
From 09-MAY-16 17:50:00 to 09-MAY-16 17:50:00 (CST-6)
Location: CALDWELL
Magnitude: 0.75 
Reported by: Trained Spotter

Hail in COWLEY, KANSAS
From 09-MAY-16 18:03:00 to 09-MAY-16 18:03:00 (CST-6)
Location: ARKANSAS CITY
Magnitude: 0.88 
Reported by: Emergency Manager

Hail in COWLEY, KANSAS
From 09-MAY-16 18:04:00 to 09-MAY-16 18:04:00 (CST-6)
Location: WINFIELD ARPT
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in COWLEY, KANSAS
From 09-MAY-16 18:06:00 to 09-MAY-16 18:06:00 (CST-6)
Location: WINFIELD ARPT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in COWLEY, KANSAS
From 09-MAY-16 18:16:00 to 09-MAY-16 18:16:00 (CST-6)
Location: WINFIELD ARPT
Magnitude: 0.88 
Reported by: Emergency Manager

Public report of dime hail.

Hail in COWLEY, KANSAS
From 09-MAY-16 18:20:00 to 09-MAY-16 18:20:00 (CST-6)
Location: BURDEN
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in COWLEY, KANSAS
From 09-MAY-16 18:23:00 to 09-MAY-16 18:23:00 (CST-6)
Location: WINFIELD
Magnitude: 0.88 
Reported by: Amateur Radio

Hail in COWLEY, KANSAS
From 09-MAY-16 19:04:00 to 09-MAY-16 19:04:00 (CST-6)
Location: ARKANSAS CITY
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in COWLEY, KANSAS
From 09-MAY-16 19:07:00 to 09-MAY-16 19:07:00 (CST-6)
Location: ARKANSAS CITY
Magnitude: 0.88 
Reported by: Emergency Manager

Hail in COWLEY, KANSAS
From 09-MAY-16 19:08:00 to 09-MAY-16 19:08:00 (CST-6)
Location: ARKANSAS CITY
Magnitude: 0.88 
Reported by: Trained Spotter

Pea to nickel sized hail and heavy rain was also reported.

Hail in WOODSON, KANSAS
From 09-MAY-16 19:26:00 to 09-MAY-16 19:26:00 (CST-6)
Location: TORONTO
Magnitude: 1.00 
Reported by: Amateur Radio

Hail in COWLEY, KANSAS
From 09-MAY-16 19:28:00 to 09-MAY-16 19:28:00 (CST-6)
Location: SILVERDALE
Magnitude: 0.88 
Reported by: Emergency Manager

Near the town of Silverdale.

Hail in COWLEY, KANSAS
From 09-MAY-16 20:12:00 to 09-MAY-16 20:12:00 (CST-6)
Location: UDALL
Magnitude: 1.00 
Reported by: Trained Spotter

Seventy percent of the ground is covered.

Thunderstorm Wind in RICE, KANSAS
From 09-MAY-16 15:55:00 to 09-MAY-16 15:55:00 (CST-6)
Location: GENESEO
Magnitude: 52.00 EG
Reported by: Broadcast Media

A broadcast media chaser reported the gust.