Toward the latter half of the afternoon multiple tornadoes occurred from developing storms in northwestern Kit Carson County along an outflow boundary.  At one point three tornadoes were ongoing at the same time.  The only damage reported was to an irrigation pivot.  As the storms continued to strengthen they produced large hail.  The largest hail reported was ping-pong ball size near Wray.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:37:00 to 28-MAY-18 16:39:00 (MST-7)
Location: SEIBERT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

This tornado moved into the northwestern fringe of Kit Carson County from Washington County.  The tornado was moving south and ended in an open field a couple minutes after moving into Kit Carson County.  The tornado crossed the county line between CR TT and CR 0 of Washington County and CR 12 and CR 0 of Kit Carson County.  No damage was reported with this tornado.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 15:19:00 to 28-MAY-18 15:27:00 (MST-7)
Location: FLAGLER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A weak tornado occurred north of CR NN, roughly 3/4 of a mile east of the CR NN/CR 4 intersection in the far northwest part of the county.  The tornado was nearly stationary in the pasture and caused no damage.

Hail in KIT CARSON, COLORADO
From 28-MAY-18 18:42:00 to 28-MAY-18 18:42:00 (MST-7)
Location: BETHUNE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:10:00 to 28-MAY-18 16:32:00 (MST-7)
Location: FLAGLER
Tornado F-scale: EF0
Property damage: 60.00K
Crop damage: 0.00K
Reported by: NWS Employee

This is the third of three tornadoes that were briefly ongoing at the same time.  During the first five minutes or so of its lifetime it moved east toward CR 10, (possibly crossing this road).  The tornado was stationary for another five minutes or so then headed south for the rest of its lifetime, ending between CR KK and CR JJ.  Toward the end of its lifetime the tornado did damage an irrigation pivot south of CR KK.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:26:00 to 28-MAY-18 16:28:00 (MST-7)
Location: SEIBERT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A tornado was visible five or more miles away from their location.  No damage was reported with this tornado.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:35:00 to 28-MAY-18 16:36:00 (MST-7)
Location: VONA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A weak tornado was seen southwest of Kirk.  No damage was reported with this tornado.  No end time was given for the tornado.

Hail in YUMA, COLORADO
From 28-MAY-18 18:00:00 to 28-MAY-18 18:00:00 (MST-7)
Location: WRAY BOWMAN ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime size hail reported south of Wray on Highway 385.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:00:00 to 28-MAY-18 16:11:00 (MST-7)
Location: FLAGLER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

This was the first of three tornadoes that were briefly ongoing at the same time.  Tornado developed southwest of the CR 8 and CR MM intersection and moved slowly south.  No damage was reported with this tornado.

Hail in YUMA, COLORADO
From 28-MAY-18 18:05:00 to 28-MAY-18 18:16:00 (MST-7)
Location: WRAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime size hail reported in Wray.

Tornado in KIT CARSON, COLORADO
From 28-MAY-18 16:10:00 to 28-MAY-18 16:21:00 (MST-7)
Location: SEIBERT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

This was two of three tornadoes that were ongoing at the same time.  The tornado started northeast of the CR MM and CR 10 intersection, crossed CR MM as it headed south.  The tornado dissipated near CR LL.  Estimated the end time of the tornado based on pictures taken of it.  No damage was reported with this tornado.

Hail in YUMA, COLORADO
From 28-MAY-18 18:14:00 to 28-MAY-18 18:14:00 (MST-7)
Location: IDALIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail reported to be drifting across the road.

Hail in KIT CARSON, COLORADO
From 28-MAY-18 18:15:00 to 28-MAY-18 18:17:00 (MST-7)
Location: BETHUNE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from half dollar to ping-pong ball in size.