A series of severe thunderstorms and a few supercells moved east across central Kansas
and along Interstate 70, during the late afternoon and evening hours of May 1st, 2018.  The strongest supercell thunderstorms produced very large hail up to 4 inches in diameter.  A couple of tornadoes were produced by one strong supercell thunderstorm, the first touched down just south of Interstate 70, seven miles north of Ellsworth, and the second touched down,  3 miles north of Glendale, or 7 miles northwest of Salina, Kansas.  Damage from the tornadoes was minimal, however, significant damage occurred due to the very large hail.

Hail in BARTON, KANSAS
From 01-MAY-18 16:42:00 to 01-MAY-18 16:43:00 (CST-6)
Location: SUSANK
Magnitude: 4.00 
Reported by: Official NWS Observations

The report came from National Severe Storms Lab mobile mesonet team while out chasing.

Hail in BARTON, KANSAS
From 01-MAY-18 16:36:00 to 01-MAY-18 16:37:00 (CST-6)
Location: SUSANK
Magnitude: 2.75 
Reported by: Trained Spotter

The hail was golfball to baseball size.

Hail in BARTON, KANSAS
From 01-MAY-18 17:01:00 to 01-MAY-18 17:02:00 (CST-6)
Location: BEAVER
Magnitude: 1.75 
Reported by: Public

Based on image posted via Twitter.

Hail in LINCOLN, KANSAS
From 01-MAY-18 19:15:00 to 01-MAY-18 19:16:00 (CST-6)
Location: BARNARD
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LINCOLN, KANSAS
From 01-MAY-18 19:33:00 to 01-MAY-18 19:34:00 (CST-6)
Location: ASH GROVE
Magnitude: 1.00 
Reported by: Law Enforcement

Hail in LINCOLN, KANSAS
From 01-MAY-18 19:19:00 to 01-MAY-18 19:20:00 (CST-6)
Location: BARNARD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in RUSSELL, KANSAS
From 01-MAY-18 17:07:00 to 01-MAY-18 17:08:00 (CST-6)
Location: DORRANCE
Magnitude: 2.00 
Reported by: Storm Chaser

Hail in ELLSWORTH, KANSAS
From 01-MAY-18 17:28:00 to 01-MAY-18 17:29:00 (CST-6)
Location: WILSON
Magnitude: 1.50 
Reported by: Trained Spotter

Reported at mile marker 206 on Interstate 70.

Hail in RUSSELL, KANSAS
From 01-MAY-18 17:22:00 to 01-MAY-18 17:23:00 (CST-6)
Location: MILBERGER
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in RUSSELL, KANSAS
From 01-MAY-18 17:30:00 to 01-MAY-18 17:31:00 (CST-6)
Location: (RSL)RUSSELL MUNI AR
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in RUSSELL, KANSAS
From 01-MAY-18 15:20:00 to 01-MAY-18 15:21:00 (CST-6)
Location: PARADISE
Magnitude: 1.00 
Reported by: Law Enforcement

Hail in RUSSELL, KANSAS
From 01-MAY-18 15:30:00 to 01-MAY-18 15:31:00 (CST-6)
Location: PARADISE
Magnitude: 0.88 
Reported by: Emergency Manager

Hail in LINCOLN, KANSAS
From 01-MAY-18 20:06:00 to 01-MAY-18 20:07:00 (CST-6)
Location: ASH GROVE
Magnitude: 1.50 
Reported by: Fire Department/Rescue

Tornado in ELLSWORTH, KANSAS
From 01-MAY-18 18:08:00 to 01-MAY-18 18:09:00 (CST-6)
Location: ELLSWORTH
Tornado F-scale: EF0
Reported by: Storm Chaser

The supercell thunderstorms produced a brief tornado touchdown in an open field.

Thunderstorm Wind in ELLSWORTH, KANSAS
From 01-MAY-18 17:26:00 to 01-MAY-18 17:27:00 (CST-6)
Location: WILSON
Magnitude: 61.00 EG
Property damage: 20.00K
Reported by: Law Enforcement

The Kansas Highway Patrol reported that a semi had jack knifed on Interstate 70 due to the strong winds.

Hail in LINCOLN, KANSAS
From 01-MAY-18 17:56:00 to 01-MAY-18 17:57:00 (CST-6)
Location: SYLVAN GROVE
Magnitude: 2.75 
Reported by: Storm Chaser

Hail in LINCOLN, KANSAS
From 01-MAY-18 18:18:00 to 01-MAY-18 18:19:00 (CST-6)
Location: LINCOLN
Magnitude: 0.88 
Reported by: Emergency Manager

Winds of 50 mph were also reported.

Hail in RUSSELL, KANSAS
From 01-MAY-18 18:55:00 to 01-MAY-18 18:56:00 (CST-6)
Location: RUSSELL
Magnitude: 0.75 
Reported by: Trained Spotter

Hail in RUSSELL, KANSAS
From 01-MAY-18 18:59:00 to 01-MAY-18 19:00:00 (CST-6)
Location: WALDO
Magnitude: 1.00 
Reported by: Fire Department/Rescue

Hail in RUSSELL, KANSAS
From 01-MAY-18 15:45:00 to 01-MAY-18 15:46:00 (CST-6)
Location: PARADISE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in RUSSELL, KANSAS
From 01-MAY-18 16:01:00 to 01-MAY-18 16:02:00 (CST-6)
Location: WALDO
Magnitude: 1.25 
Reported by: Emergency Manager

Hail in BARTON, KANSAS
From 01-MAY-18 16:12:00 to 01-MAY-18 16:13:00 (CST-6)
Location: OLMITZ
Magnitude: 2.50 
Reported by: Storm Chaser

A storm chaser reported the hail through social media, on Twitter.

Hail in RUSSELL, KANSAS
From 01-MAY-18 16:12:00 to 01-MAY-18 16:13:00 (CST-6)
Location: LURAY
Magnitude: 1.25 
Reported by: Trained Spotter

Tornado in SALINE, KANSAS
From 01-MAY-18 18:41:00 to 01-MAY-18 18:44:00 (CST-6)
Location: GLENDALE
Tornado F-scale: EF1
Property damage: 100.00K
Reported by: NWS Employee

A supercell thunderstorm produced a tornado, across northern portions of Saline county, Kansas, 7 miles northwest of Salina, Kansas.  When the tornado touched down, it produced damage to a metal barn. Part of the roof had been blown off and some of the side walls had been blown out. The tornado continued to track to the northwest and moved into Ottawa county, Kansas, just to the east of the town of Tescott.  The tornado was on the ground for 1.6 miles, in Saline county, and had a path width of 200 yards. A National Weather Service survey team, rated the tornado an EF1, across Saline county. Note: the tornado would go on to produce EF3 damage across Ottawa county.

Hail in BARTON, KANSAS
From 01-MAY-18 16:21:00 to 01-MAY-18 16:22:00 (CST-6)
Location: GALATIA
Magnitude: 1.75 
Reported by: Public

Hail in LINCOLN, KANSAS
From 01-MAY-18 19:35:00 to 01-MAY-18 19:45:00 (CST-6)
Location: ASH GROVE
Magnitude: 2.00 
Reported by: Trained Spotter

Sent via Twitter. The hail lasted for 10 minutes.