04-05-1941NScottsbluff 06-25-1942WPlatte 06-09-1943WBoxButte 06-12-1944WCampbell 06-13-1948NBoxButteMorrill(30-40miles long and 1 mile wide) 06-16-1948NBanner(Destroyed barn and splintered trees) 14 S of Gering 07-14-1948Scottsbluff(moved SE hitting the west edge of Morrill and 5 E of Morrill A farm home was destroyed and 66 railroad cars overturned--100s of cottonwoods snapped 06-07-1950 F1 Niobrara 2130Z 06-14-1950 F1 Weston 22 Z 05-30-1951NScottsbluff and Morrill)125-204 pm Barns leveled and an auto body shop demolished, 7 injured some critically 06-25-1951N(Hangar and plane dest at SNY) 250 pm 07-12-1952NCheyenne F2) 05-17-1953N15SE Gordon--open 05-28-1953WCampbell 06-02-1953N(Sheridan F2) 07-02-1953W(25E Chugwater) 07-20-1953N(250 pm rural area near BFF) 07-28-1953N(Sioux F1) 05-15-1954NTornado BFF/Morrill county line 05-22-1954WN Barn damaged at Jay Em. Obs upset SB. 06-06-1954NKimball/Cheyenne/Grant--Destroyed barns, one of which was large and well constructed, lasted 45 min. 07-03-1954N15N BFF open cntry 255 pm 07-10-1954W50 SE Gilette and Crook (1230-1330) 07-21-1954NSmall tornado damaged roofs of 2 bldgs. 06-26-1955WGoshen/Platte 06-27-1955WGoshen/Platte 07-09-1955NBox Butte 11 ESE Hemingford Farm bldg dest. 07-12-1955NScottsbluff Terrytown area. Public sees funnels. 07-25-1955W Converse. Tornado. 230 pm 08-03-1955NBox Butte 12W Hemingford--Chicken house roof sheared off 06-24-1956N 15 NW SNY tornado 07-04-1956N(Banner F1) formed 8 NE Albin--13 minutes 04-18-1957 20NE AIA 1/2 mile of power lines down. 28S Clinton 05-19-1957NMorrill(OBs destroyed and home torn from foundation and unroofed) 930 pm 630 pm 7 E Minatare open range. 1 W Gurley 9 pm farm bldg dest. Cheyenne. 05-24-1957N 06-09-1957Ncherry hail 06-10-1957Scottsbluff 5 pm tornado 3S gering 06-01-1958N(Scottsbluff--1 frame school destroyed) 7 pm 06-03-1958WBig Horn near Shell 3 pm, 7E Gilette 530 pm 06-08-1958CN(Scottsbluff 1.75") 06-11-1958N(5 ene BFF--Few farm bldgs and OB dest)340 pm 06-12-1958W(Airport Hangar Destroyed at New Castle 8 pm)Weston 06-18-1958(Sious, Kimball 3" F0) 05-30-58N(Dawes 3" and F0) 05-27-1959: formed ssw of GCC and moved nne. damage at airport 06-24-1959W 4" hail south of Sundance(flood near Miller creek) 06-25-1959WCampbell Tornado at a ranch south of Sundance with some damage, large hail too. 04-23-1960W 06-20-1960 06-27-1960 06-26-1960WNiobrara 07-03-1960WCarbon 08-07-1960N(Box Butte 3") 08-15-1960NBuildings unroofed 3W Bridgeport) 08-21-1960WGoshen 05-18-1961WCrook/Weston 05-20-1961WSheridan: granary and shed destroyed 5 N of Arvada In sheridan 05-14-1962N Box Butte/Dawes 05-24-1962W 1N Stegall or 5S of Morrill 05-31-1962W Hail drifts 8-10 ft 4 miles west of Lagrange 06-07-1962 06-11-1962WCrook/Natrona/Johnson/Campbell: 15S Moorcraft 330-415 pm tossed car and dest machine shop and shed 4 pm 40S Gillette open country and 15S Moorcraft 06-14-1962WLaramie/Platte/Niobrara/Converse: 12 E Wheatland damaged crops. 5w of PBF to 7 N 06-11-1962: Td 40 S GCC observed by workers. 06-12-1962WGoshen Some damage to ranchland, 2" hail 12 S Buffalo, WY Greybull 18W, destroyed outbuildings 06-15-1962WNatrona (2" hail 30 NW CPR). tornado 06-15-1962N(Morrill/Sheridan F2) At Nenzel , a church and 6 homes were destroyed. All other bldgs were damaged. 1.5" hail 3 S CYS More than 9 ranches were hit. 06-16-1962WNatrona 06-14-1963WNGoshen and 10S Mitchell(dest and dam farm bldgs) 07-14-1963WWeston(minor damage OBs and school) 04-24-1964W 3 south of Pavillion doing damage to farm buildings and house(check north of DGW) 05-02-1964NWScottsbluff/Goshen 1.75" hail Stegall to sunflower major damage to roofs and signs in Mitchell tornado 130 pm 5-8W of BFF lifted 135 pm. 208 pm visible from BFF airport. 1120 am tornado 10E Lagrange 06-05-1964W?Johnson,BigHorn 06-21-1964WPlatte/Albany(Wheatland 18NE,Laramie) 06-26-1964W(Big Horn/Park(Powell)Much damage to house of Ronnie Decker 07-02-1964W(WN)Sheridan/Sioux) 05-07-1965CO/WY F1 tornado and 2" hail. 11 pm to 12 am 05-23-1965W Small tornado hit in mobile home sales lot 06-13-1965N(Morrill F2) 06-14-1965W Tornado tippped over a halted truck with minor injures to the driver. 06-15-1965W Thousands of valuable cottonwoods were destroyed 40 N of DGW by tornado. Some of these were 5 ft in diameter. 2 trailer houses were demolished and a man suffered broken ribs. 06-15-1965W Tornado near Hecla and 32 west of Cheyenne. The western one tore up trees as reported by a cooperative observer. The tornado were 6800 and 8200ft. 07-12-1965WWeston 07-13-1965W(Goshen/Platte/Banner) 30ene cys 06-15-1966W 14 se of Saratoga damaging forest and sheds 04-12-1967W F2 Veteran 04-19-1967WCampbell/Converse 06-02-1967W 1.5" hail Cheyenne 06-06-1967WFremont Toppled several trees RIW 5N(Portions fell on boy--) 5S lusk 2.5" hail 06-14-1967WFremont F1 destroyed OK with woman inside injured 07-15-1967W Tornado 5 miles NE of Cheyenne. Tornado 15 SW of Encampment damaged trees 07-24-1967WFreemont/(BigHorn--F2) 06-05-1968WGoshen/Niobrara/Fremont Chicken house dest 24 N Tor. 2 farms damaged 1 nw of Riverton 06-06-1968WFremont--Utlility bldgs, cars and trees damaged 6 N RIW 06-07-1968WSheridan--Barn destroyed 8 miles se of Sheridan 06-08-1968NPanhandle 3" hail bayard 1/2 million damage 06-11-1968WSheridan damaged buildings 220 pm 25N Sheridan 06-20-1968 3" hail northern Campbell 06-23-1968WLaramie/Goshen N of Burns to N of Albin Damage to OBs 445 pm S of Lagrange 05-05-1969WGoshen 1145 am 1 inj 05-15-1969W(Natrona)5N Casper Open country 06-24-1969W Brief TD 30 SW Gillette 07-14-1969 Trees and farm bldg dest 07-23-1969 PBF Pilot Yoder east to SW of Gering 1.5" hail 06-18-1970NCheyenne/Kimball 3FC 20-22Z 05-21-1970WNatrona/Converse...1.75" 40E CPR 3 pm, 2.75" 5W Glenrock 7 pm, 10 E Glenrock 2 pm 1.75" 2.75" Hail 20 E CPR 7 pm 05-22-1970W FC 7 W Gillette 05-28-1970 5FC NE of AIA 10N and 14NE 04-18-1971WLaramie/Platte/Goshen: damaged OBs and equip 8 ne of Ft. Laramie. house trailer toppled and 3 ene of CYS weather service. roof damage moved nw 05-28-1971WNatrona/Converse.....a tornado damaged 4 small hangars and an airplane 8 miles ne of the CPR weather service. a tornado was reported 15 to 20 miles se of Casper around 02 UTC. 06-01-1971NWest to East BFF to 20E BFF Barns/Houses Damaged County Line 06-03-1971WConverse/Platte/Johnson...South of Buffalo Dam and near Wheatland 5 SE, 40S BFF 58W BFF. near Sterling. 2.75" hail Glendo to Guernsey 06-08-1971WPlatte/Laramie/Goshen Pilot reports tornado 25N Cheyenne 06-08-1971NScottsbluff 06-12-1971WGoshen 05-10-1972W 2" hail Rawlins 55/38 08015kts -19C 500mb 06-10-1972 Look up hail Cheyenne 06-15-1972WCrook(F1) 06-28-1972W? 07-25-1972N(Scottsbluff/Sioux/Box Butte TOR) 08-27-1973W(Fremont F2) 06-11-1973W(Laramie 2")all of easternWY(DGW-CPR) 09-08-1973 1.5" hail Carbon Shirley Basin 06-20-1974W One bldg damaged near Green River In sweetwater cnty 07-01-1974WGoshen/Niobrara--Quonset hut, trailer house and stock tanks damaged 20 SE of Lusk 07-20-1974W 35 wsw of Sheridan. tornado caused damage to trees and facilities 08-28-1974W Laramie/Platte trailer house destroyed 30 N of Cheyenne 06-18-1975 Tornado 4ENE Worland Washaskie cnty 409 pm. 2" hail in Cheyenne 3 million damage 1700. 06-25-1975Campbell/Weston 04-12-1976WNiobrara--Destroyed cattle shed and did damage to house and other bldgs 2 west of Manville 05-29-1976Laramie 05-30-1976Denver 06-17-1976W--Johnson/Sheridan: Damage to OBs on a ranch 4 S of Tensleep 06-26-1976WPark 07-02-1976WCarbon/Albany 07-12-1976W Sheridan/Johnson/Campbell/Crook: Open Prarie 40 NW GCC mov ENE. Ranch house OBs and trees damaged 19 ENE of Moorcraft 07-28-1976N15W CDR Dam to farm house and trailer and truck 4 NW Rushville 08-15-1976WConverse/Campbell F1 and 2" hail. Trees and facilities damaged at coal mine by tornado 30 S GCC. Tornado moved S to N. 08-15-1976NSioux/Dawes 05-09-1977WConverse--cattle shed destroyed 5 N of DGW 06-09-1977 06-13-1977W Campbell 1.75" hail 30 S GCC 06-14-1977W Niobrara 15 antelope killed 2" hail 06-16-1977W 10W Moorcraft 1. " hail, 4-6 " deep 2" hail in Sheridan 4" hail at Osage in Weston county 06-20-1977W(Platte/Albany) 13 sw wheatland tornado, little damage 06-29-1977N Dix to Porter 530 pm Poles down and garqge unroofed 05-16-1978WConverse: barn and water tower destroyed near Lost Springs 05-23-1978WCampbell 25 W Gillette tornado. Tornado overturned several mobile homes with 2" hail in Gillette area. 1.75" hail 06-15-1978WCampbell--1.75" hail Gillette area 06-16-1978W Egg size hail Gillette 06-18-1978WBigHorn: unroofed a house and destroyed a shed and then moved into a wildlife refuge area. 7 E of Lovell 06-25-1978NSheridan NW Gordon ESE through town school and 15 homes severly damaged 8 inj 06-29-1978WGoshen/Platte Air nat gaurd 20 E guernsey 07-04-1978WBigHorn/Washakie(tor/3"hail) Damage to lodge and dude ranch and uprooted 800 acres of trees. woman injured as camper rolled over. Moved ne in 5 miles of destruction. 07-09-1978W Converse 1.75" hail between Douglas and Glendo 07-11-1978WPark 07-20-1978WNatrona/Fremont.... 1. tornado 50 NW Cheyenne. 2. cons damage to bldgs. equip and cars in Gas Hill area. Man injured by flying glass when a window broke. 07-20-1978Scottsbluff/BoxButte 07-28-1978WGoshen/Niobrara 07-31-1978W 3" hail did 9 million in damage in Cheyenne and FC south of town 05-05-1979W?Laramie, WY 06-15-1979W 1.5 " hail in Laramie county 06-16-1979WCampbell--25 SW GCC 2" hail 06-17-1979W Parkman area in Campbell had 3" hail 06-26-1979WLaramie(S of PBF 23 minutes) 06-28-1979WGoshen 07-16-1979WCheyenne 07-19-1979W softball hail in Fort Laramie-extensive damage to vehicles and buildings 07-25-79W 2.75 " hail Sheridan city. 07-26-1979W(grasslands research station) 07-30-1979WLaramie: damage to buildings on a ranch 8 W of Cheyenne 3-4" hail 08-01-1979WNiobrara 06-14-1980WCrook/Niobrara 3N Redbird and W of Hulett 355 and 415 pm. 06-14-1980N 06-30-1980WLaramie 7 SE Burns partly dest farm bldgs. (took 30 ft off a barn). 08-03-1980WFreemont 08-10-1980NBoxButte 10-15-1980Ngarden 06-06-1981 1.75" hail in Dayton in Sheridan cnty for 15 minutes, 75-100 homes damaged 06-05-1982WConverse/Niobrara 07-01-1982 2.75" Thermopolis (Washakie) extensive damage 2.75 million 08-23-1982N 12 SW CDR rural rangeland and NE of AIA 06-04-1983W 1.75" hail and FC 15 SSW Laramie 06-18-1983W Considerable damage to OBs 15 SE of harrisburg--tornado 710 pm, tornado near Rapid City 06-19-1983N 2 N state line se past wayside to 10 NW CDR -- several homes and OB destroyed 06-20-1983W Softball hail se of lingle 420 pm. 4" hail 12N of Henry 630 pm. considerable damage to home, bldg, car, machinery from tornado at 7 pm 17 N Mitchell 540 pm tennis ball hail, Red and MC junction? 05-03-1984W? 05-31-1984WCrook 06-13-1984WConverse/Niobrara Several tornadoes near Bill and near Lance Creek 06-14-1984W Arminto NW Natrona cnty , 1.75" damaged cars 06-15-1984WSheridan 05-06-1985WNGoshen/SB 05-10-1985W? 05-27-1985WNiobrara 05-27-1985N 06-20-1985W: trailer unroofed north of Thermopolis lasted 3-4 minutes. 07-26-1985W: trees torn up 10 N of Lusk 08-02-1985W(eastern WY): "Big black cloud circling around" damaged 1100 acres of Timber in the Bighorn national forest 06-07-1986WFremont/Goshen. 1.75" hail Guernsey state Park 2-story building destroyed with debris scattered over town. Several mobile homes damaged. formed S of Shoshoni and moved NE into town. 120 mph winds clocked by local electric association. 06-08-1986WNiobrara/Goshen Airforce personell reported tornado near Albin at 1630. Softball hail 3 miles west of Carpenter at 1643. 06-09-1986W 06-12-1986WNatrona/Converse: unroofed a home at Bar Nunn and 4 trailers damaged( 7 pm). 1.75" hail on west side CPR 06-13-1986Platte/Goshen 06-29-1986NScottsbluff/Sioux(20N BFF) 09-01-1986 2" hail CPR extensive damage(1850). 5S of CPR on Casper mtn. 50 trees uprooted and toppled power poles 1600 09-05-1986 1N of Lingle to Tor(1.75" 1, million damage) 09-18-1986 F2 near Wheatland: damaged signs, uprooted 15 to 20 trees at 222 pm. The tornado overturned campers and damaged garages. Ducks and water sucked into tornado over water. 3 miles nw of Wheatland near Festo Lake. 08-25-1986: trailer house destroyed and shed. cars damaged by flying debris and treees uprooted 4E Cody. 07-04-1986W: demolished a garage and unroofed a house. Damaged another house and damaged vehicles. 5 pm at Aladdin in Crook county. 07-31-1986 3 tornadoes sw of Wright, between the town and a coal mine 05-19-1987W Campbell/Weston/Crook 2" hail FC 05-23-1987 1.5" hail 60 N Casper 06-18-1987W: patio roof torn off a house 8N Glendo. Man injured when walking by. 1 mobile home completely destroyed 10 N CPR and others damaged. A helicopter witnessed this tornado. 08-03-1987W 37 million in damage in Cheyenne from hail. Tornado 17 nw cys 1415. 2" hail pummeled car dealershops 07-07-1988W 05-12-1989W Uprooted trees and damaged cars, unroofing bldgs. 1.75" hail 20N of Laramie earlier afternoon. 05-18-1990W 05-24-1990W Several tornadoes, 1 large, Laramie and Campbell 08-11-1990W 2" hail Chugwater 05-10-1991 5" hail Fort Robinson and Crawford 05-11-1991W: Several tornadoes occurred. 5 S of Bil(1654) and near Upton and 30 NE of Wheatland. 05-15-1991W 05-18-1991W Tornado 7 W of Powell. 1.75" hail in Cody damaged cars. 06-02-1991W Several vehicles damaged and 1 destroyed. by 9 am tornado. 5 homes and numerous trees damaged. Guernsey. 06-27-1991: tornado 2 ne of Albin downed power lines. 07-12-1992W Hail broke car windows 30 N Lusk 05-05-1993N Nebraska Panhandle 07-26-1993WN Scottsbluff/Laramie 08-19-1993W: destroyed a bldg 6 E of GCC. 05-19-1994W: small barn destroyed 14 W of Chugwater 07-06-1994N Sioux/Morrill/Niobrara/Goshen 07-14-1994W Tornado formed west of Wheatland and hit town. 2 garages were leveled one of which was thrown across the road after being torn from the foundation. A ccovered porch was torn from a house and thrown across the street. Several large trees were twisted off their bases and thrown about. 1.75" hail demolished a car dealership. 05-07-1996W 05-23-1996W Spruce tree down and metal shed blown into a tree. just north of Laramie. 05-30-1996W 1.75" 15 W to SE of Hawk Springs(1 mile swath) 1" hail Chugwater 07-30-1996W Several trees downed and 300 gallon tank moved 1/2 mile. 9 nw hawk Springs 07-31-1996 1 to 2.5" hail in Cheyenne 08-29-1996W Large hail broke car windows in Cheyenne (2.5 million). 1.75" 06-12-1997 17W Cheyenne 2.5 " hail 06-18-1997W 05-10-1998W 22N CYS 1.75" hail 05-19-1998W Cheyenne 20 N 1.75" 06-13-1998W 07-01-1998W Baseball hail 40 NW DGW, 7 E Bill 1.75" 05-30-1999: brief TD north end of Cheyenne with windows blown out and minor roof damage. 05-06-2000W Lingle 4.5" hail 08-26-2002 2.75" hail Cheyenne western, part damage to roofs and cars(30 million) 09-08-2003W