Thunderstorms produced large hail, damaging winds and a couple tornadoes over portions  of Converse and Platte counties.

Tornado in CONVERSE, WYOMING
From 28-JUL-18 14:50:00 to 28-JUL-18 15:15:00 (MST-7)
Location: DOUGLAS
Tornado F-scale: EF3
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The first observed evidence of the tornado was near Rattlesnake Hill just north of Wagonhound Road.  The tornado moved to the south and quickly grew stronger.  The NWS survey team continued to investigate some video evidence that the tornado may have been on the ground prior to Rattlesnake Hill.  The tornado snapped several trees and power poles along Wagonhound Road, and blew several large rolls of hay nearly 300 yards from a large hay bale stack.   The tornado intensified as it moved south toward a ranch, reaching EF3 intensity through the barn and residence, destroying several buildings and causing significant damage to the ranch house.  The ranch house had large sections of roof structure removed, and a quonset hut tractor storage area just west of the house was destroyed.  Two large utility trailers weighing several thousand pounds were lofted and had not been located, with the exception of one axel set.  Large cottonwood trees were stripped of all vegetation with just the largest limbs near the center of the trees remaining intact.  The tornado continued south-southeast before lifting in the vicinity of Poison Lake.  Start and end and locations and times of the tornado were estimated from eyewitness accounts and radar data.

Tornado in PLATTE, WYOMING
From 28-JUL-18 15:27:00 to 28-JUL-18 15:45:00 (MST-7)
Location: GLENDO
Tornado F-scale: EFU
Reported by: Law Enforcement

Tornado reported southwest of Glendo with motion to the southeast. Tornado passed through open fields with no apparent damage reported so rating left as unknown.

Thunderstorm Wind in CONVERSE, WYOMING
From 28-JUL-18 15:52:00 to 28-JUL-18 15:52:00 (MST-7)
Location: ESTERBROOK
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

A wind sensor at Esterbrook measured a peak gust of 62 mph.

Hail in PLATTE, WYOMING
From 28-JUL-18 15:30:00 to 28-JUL-18 15:33:00 (MST-7)
Location: GLENDO
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball size hail was observed east of Glendo.

Tornado in CONVERSE, WYOMING
From 28-JUL-18 15:20:00 to 28-JUL-18 15:28:00 (MST-7)
Location: IRVINE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The second tornado formed as the first tornado was lifting to the west, touching down near the West Fork of La Bonte Creek and Esterbrook Road.  The tornado quickly strengthened to EF1 intensity as it moved along La Bonte Creek passing near a ranch house off Esterbrook Road.  Most of the damage was to trees that were snapped mid trunk in a 150 yard path.  The tornado lifted as it moved east of La Bonte Creek.  The NWS survey team lost track of the tornado as it  moved southeast into open country, so it is possible that track extended farther than the survey results indicated.  The survey team also continued to investigate reports of damage at Esterbrook Campground to the southeast, to see if this damage was associated with the same tornado.  Start and end times and locations and times of the tornado were estimated from eyewitness accounts and radar data.