Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for June 20, in any year, each linked to its full record.
Every event with a place, colored by kind. Tap one to open its record.
By deaths, damage and strength together, across every archive.
Earthquakes
A magnitude 7.3 earthquake struck Rasht, Qazvin, Zanjan, Rudbar, Manjil, Iran. It killed 40,000 people, injured 105,000, destroyed 100,000 houses and did $7.2 billion in damage. It caused a tsunami.
Tsunamis
A tsunami with a source recorded as earthquake and landslide struck Caspian Sea, Iran, with a maximum water height of 2 meters. It killed 40,000 people, injured 105,000, destroyed 100,000 houses and did $7.2 billion in damage.
Earthquakes
A magnitude 7.7 earthquake struck Tungurahua,cotopaxi,chimborazo, Ecuador. It killed 6,500 people and did severe (about $5 to $25 million) damage.
Tornadoes
An F5 tornado touched down in Cass, Clay counties, North Dakota and tracked 52.4 miles, 500 yards wide at its widest, killing 10 and injuring 103.
Tornadoes
An EF5 tornado touched down in Ransom, Cass counties, North Dakota and tracked 12.1 miles, 1,850 yards wide at its widest, killing 3.
Tornadoes
An F4 tornado touched down in Lee, DeKalb counties, Illinois and tracked 25.9 miles, 200 yards wide at its widest, killing 12 and injuring 60. From Grazulis's record of significant tornadoes: Paw Paw/Sublette, IL.
Earthquakes
A magnitude 6.4 earthquake struck Thessaloniki, Greece. It killed 50 people and did $250 million in damage. It caused a tsunami.
Tsunamis
A tsunami caused by a magnitude 6.4 earthquake struck Thessaloniki (Salonica), Greece, with a maximum water height of 0.45 meters. It killed 50 people and did $250 million in damage.
Earthquakes
A magnitude 6.4 earthquake struck Hendek, Adapazari, Turkey. It killed 285 people and did severe (about $5 to $25 million) damage.
Tornadoes
An F4 tornado touched down in Clinton, Howard counties, Indiana and tracked 27.6 miles, 300 yards wide at its widest, killing 3 and injuring 150. From Grazulis's record of significant tornadoes: Kokomo, IN.
Billion-dollar disasters
A severe storm disaster that cost $1.7 billion in 2024 dollars and killed 12, on NOAA’s billion-dollar list. It lasted from June 20, 1998 to June 24, 1998.
Tornadoes
An F4 tornado touched down in Sumner, Sedgwick counties, Kansas and tracked 8.3 miles, 400 yards wide at its widest, killing 4 and injuring 10. From Grazulis's record of significant tornadoes: Mulvane, KS.
97 on June 20, oldest first.
An F4 tornado touched down in Stafford County, Kansas and tracked 8.4 miles, 500 yards wide at its widest, injuring 5. From Grazulis's record of significant tornadoes: NW St. John to SE Seward, KS.
An F3 tornado touched down in Leavenworth, Platte counties, Kansas and tracked 15 miles, injuring 9. From Grazulis's record of significant tornadoes: S Leavenworth, KS.
An F3 tornado touched down in Gentry, Worth counties, Missouri and tracked 14.8 miles, 200 yards wide at its widest, killing 2 and injuring 20. From Grazulis's record of significant tornadoes: E Albany/Lone Star, MO.
An F3 tornado touched down in Nodaway, Worth counties, Missouri and tracked 14.9 miles, 200 yards wide at its widest, injuring 29. From Grazulis's record of significant tornadoes: SE Pickering/Parnel, MO.
An F4 tornado touched down in Lee, DeKalb counties, Illinois and tracked 25.9 miles, 200 yards wide at its widest, killing 12 and injuring 60. From Grazulis's record of significant tornadoes: Paw Paw/Sublette, IL.
An F3 tornado touched down in Minnehaha County, South Dakota and 100 yards wide at its widest, killing 1 and injuring 3. From Grazulis's record of significant tornadoes: E Montrose, SD.
An F2 tornado touched down in Rock County, Minnesota and tracked 12.5 miles, killing 2 and injuring 2. From Grazulis's record of significant tornadoes: Manly/Ash Creek, MN.
An F3 tornado touched down in Washington County, Colorado and 150 yards wide at its widest. From Grazulis's record of significant tornadoes: E Akron/Planter, CO.
An F2 tornado touched down in Wabash County, Illinois and tracked 8.1 miles, 75 yards wide at its widest, killing 2 and injuring 3. From Grazulis's record of significant tornadoes: N Mt. Carmel, IL.
An F3 tornado touched down in Ellsworth, Saline counties, Kansas and tracked 29.9 miles, 400 yards wide at its widest, injuring 1. From Grazulis's record of significant tornadoes: WNW Ellsworth to W Saline County, KS.
An F2 tornado touched down in Osage County, Oklahoma and tracked 6.9 miles, 50 yards wide at its widest, killing 1 and injuring 20. From Grazulis's record of significant tornadoes: Webb City, OK.
An F2 tornado touched down in Nowata County, Oklahoma and tracked 2.8 miles, 600 yards wide at its widest, killing 1 and injuring 16. From Grazulis's record of significant tornadoes: SE South Coffeyville, OK.
An F3 tornado touched down in Grant, Morton counties, North Dakota and tracked 11.6 miles, killing 1 and injuring 2. From Grazulis's record of significant tornadoes: W Shields to W Mandan, ND.
An F3 tornado touched down in Osage County, Oklahoma and tracked 2.2 miles, 800 yards wide at its widest. From Grazulis's record of significant tornadoes: Apperson, OK.
On this date, in 1935, a tornado occurred near Apperson, in Osage County. The tornado formed one mile northwest of town and moved southeast through town. On the tornado’s 75-yard wide, two-and-a-half-mile long path, it destroyed eight homes and struck a herd of cattle, killing 186 animals. Property damage was estimated at $25,000 in 1935 dollars. One hour later, another tornado formed near Fairfax, again in Osage County, and struck the Burbank Oil Field and injured five people.
From the National Weather Service in Norman, Oklahoma.
An F3 tornado touched down in Hockley, Lubbock counties, Texas and tracked 19.5 miles, 200 yards wide at its widest, killing 1 and injuring 16. From Grazulis's record of significant tornadoes: N Opdyke to N Shallowater, TX.
An F3 tornado touched down in Hockley, Lubbock counties, Texas and tracked 18.1 miles, 200 yards wide at its widest, killing 1 and injuring 10. From Grazulis's record of significant tornadoes: S Shallowater, TX.
An F3 tornado touched down in Roosevelt County, New Mexico and 200 yards wide at its widest. From Grazulis's record of significant tornadoes: Lingo, NM.
An F4 tornado touched down in Clinton, Howard counties, Indiana and tracked 27.6 miles, 300 yards wide at its widest, killing 3 and injuring 150. From Grazulis's record of significant tornadoes: Kokomo, IN.
An F4 tornado touched down in Sumner, Sedgwick counties, Kansas and tracked 8.3 miles, 400 yards wide at its widest, killing 4 and injuring 10. From Grazulis's record of significant tornadoes: Mulvane, KS.
An F5 tornado touched down in Cass, Clay counties, North Dakota and tracked 52.4 miles, 500 yards wide at its widest, killing 10 and injuring 103.
An F2 tornado touched down in Spink County, South Dakota and tracked 0.1 miles, 10 yards wide at its widest, killing 1.
During the late afternoon and evening hours of June 20, 1957, a long-lived and deadly F5 tornado, commonly known as the Fargo tornado, struck the north side of Fargo, North Dakota, as well as the area north of Moorhead, Minnesota. 5 hours, although in National Weather Service records they are listed as one continuous tornado.
From Wikipedia, CC BY-SA 4.0.
An F3 tornado touched down in Kimball, Cheyenne counties, Nebraska and tracked 26.1 miles, 750 yards wide at its widest.
An F3 tornado touched down in Walworth County, South Dakota and tracked 8.8 miles, 200 yards wide at its widest.
An F3 tornado touched down in Walworth County, South Dakota and tracked 0.1 miles, 10 yards wide at its widest.
An F3 tornado touched down in Davison, Hanson counties, South Dakota and tracked 9.9 miles, 2,667 yards wide at its widest.
An F3 tornado touched down in Chautauqua, Cattaraugus, Allegany counties, New York and tracked 84.1 miles, 10 yards wide at its widest.
An F3 tornado touched down in Bradley County, Arkansas and tracked 0.3 miles, 150 yards wide at its widest.
An F0 tornado touched down in Fulton County, Ohio and tracked 0.1 miles, 20 yards wide at its widest, killing 1.
An F3 tornado touched down in Clinton County, Iowa and tracked 10.6 miles, 200 yards wide at its widest, killing 1 and injuring 20.
An F3 tornado touched down in Lake County, Indiana and tracked 4.5 miles, 150 yards wide at its widest, injuring 5.
33 tornadoes were recorded on June 20, 1974, in Mississippi, Wyoming, Iowa, Illinois, South Dakota, Wisconsin, Michigan, Indiana. They killed 1 people.
A couple of trees were blown down and several others had their tops ripped off.
A small tornado touched down but did no damage.
Intermittent touchdowns were reported.
The winds broke off large tree limbs at a farmstead.
A tornado uprooted and snapped Ponderosa Pine trees in the vicinity of the intersection of Hodgen and Steppler roads.
10 inch diameter trees were blown down.
Strong to severe thunderstorms ignited across portions of central, south-central and east-central Kansas during the afternoon and evening hours on the 20th, along and north of a warm front.
Meteorologically speaking, this was a very active severe weather day for south central Montana. A very moist and unstable atmosphere was in place across portions of the Billings Forecast area during the afternoon and evening of the 20th (Father's Day).
On Sunday, June 20, 2010, a destructive EF2 tornado struck the city of Billings, Montana. The tornado, known as the 2010 Father's Day tornado, was on the ground for about 12 minutes and took the roof off the Rimrock Auto Arena at MetraPark, a 10,000 seat arena, and heavily damaged numerous businesses.
From Wikipedia, CC BY-SA 4.0.
An EF3 tornado touched down in Graham, Norton counties, Kansas and tracked 11.87 miles, 600 yards wide at its widest.
An EF3 tornado touched down in Norton County, Kansas and tracked 3.94 miles, 100 yards wide at its widest.
An EF3 tornado touched down in Norton, Phillips counties, Kansas and tracked 8.4 miles, 100 yards wide at its widest.
An EF3 tornado touched down in Buffalo County, Nebraska and tracked 10 miles, 1,320 yards wide at its widest.
An EF3 tornado touched down in Polk County, Nebraska and tracked 9.49 miles, 880 yards wide at its widest.
With 11 confirmed tornadoes, several of them significant, this Monday afternoon proved to be the most active tornado day in over three years within South Central Nebraska, since 29 May 2008.
A strong, slow-moving low pressure system moved across northwest Kansas during the afternoon, resulting in over a dozen tornadoes, some strong and long-lived. The strongest tornadoes occurred over Graham and Norton counties. Other reports of baseball sized hail were received.
38 tornadoes were recorded on June 20, 2011, in Iowa, Illinois, Kansas, North Dakota, Nebraska, Texas.
A strong summertime trough dug into the Plains with an attendant dryline and cold front moving into north Texas. Two rounds of storms affected north Texas beginning the evening of the 20th and continuing into the early morning hours of the 21st.
A large upper level low pressure system moved from northwest Kansas into south central Nebraska during the late afternoon and evening of June 20.
A very intense storm system moved through the central Rockies into the Plains. The upper low looked more like a late winter or spring system, completely closed over northwest Kansas by the evening of the 20th.
Several rounds of thunderstorms developed Thursday late afternoon and evening, June 20th, mostly in west central Minnesota, and moved eastward.
Widespread severe thunderstorms from the late morning through the evening hours June 20th, produced large hail, damaging winds, and heavy rains. In addition 4 tornadoes occurred. One tornado resulted in 2 injuries when a house was destroyed.
Scattered severe thunderstorms in advance of low pressure and a weak cold front produced damaging winds, large hail, and one weak tornado across portions of central and eastern Virginia.
A low pressure system moved into the state during the day, dragging behind it a cold front that helped trigger off storms across portions of central and southern Iowa. Hail, damaging winds and a tornado occurred with the storms.
Tropical Storm Cindy first developed in the central Gulf of Mexico on the afternoon of Tuesday, June 20th and made landfall between Cameron, LA and Port Arthur, TX during the early morning hours of Thursday, June 22nd.
Without even looking at supporting variables, the setup for impactful weather could be gleaned from the general setup. A weak surface pressure system was slowly working its way across Iowa, situating its relevant boundaries primarily across southwest and southern Iowa.
An EF3 tornado touched down in DuPage, Cook counties, Illinois and tracked 17.6 miles, 600 yards wide at its widest, injuring 11.
On the evening of June 20, 2021, an intense quasi-linear convective system tornado affected the Chicago suburbs of Naperville, Woodridge, Darien, Burr Ridge, and Willow Springs in DuPage and Cook Counties in Illinois, United States. The tornado struck well after dark and was rated an EF3, with estimated wind speeds of up to 140 mph.
From Wikipedia, CC BY-SA 4.0.
A line of severe thunderstorms moved across northern Illinois during the late evening of June 20th and the early morning of June 21st producing wind damage and three tornadoes.
Very deep tropical moisture associated with the remnants of Tropical Storm Alberto combined with monsoonal moisture was forced through eastern Utah and western Colorado due to a large high pressure ridge over the Central U.S. and a deep low pressure trough over the Great Basin.
An intense supercell crossed into western Scotts Bluff County around 3:00 PM MDT on 6/20, quickly transitioning to an intense bow echo which produced widespread destructive straight line winds.
An EF5 tornado touched down in Ransom, Cass counties, North Dakota and tracked 12.1 miles, 1,850 yards wide at its widest, killing 3.
An outbreak of severe thunderstorms brought extreme winds, very large hail, and multiple tornadoes across much of southern North Dakota from the late afternoon into the nighttime hours.
On the night of June 20, 2025, a large, extremely violent, and deadly tornado moved through portions of Ransom and Cass Counties, in southeastern North Dakota in the United States, impacting rural areas east of Enderlin and northwest of Sheldon. , and southern Canada from June 19–22.
From Wikipedia, CC BY-SA 4.0.
An EF3 tornado touched down in Barnes, Stutsman counties, North Dakota and tracked 10.94 miles, 990 yards wide at its widest.
During the evening of Friday, June 20th into the early morning hours of June 21st, much of the region was affected by severe weather.
An EF2 tornado touched down in Sedgwick County, Kansas and tracked 0.11 miles, 50 yards wide at its widest, killing 1.
An intense complex of thunderstorms moved across portions of central and south-central Kansas during the late evening hours of June 20th into the morning hours of June 21st.
Scattered to numerous thunderstorms impacted northwest Kansas from the mid-afternoon hours through the late evening hours on the 20th, in vicinity of deepening low pressure over eastern Colorado. Thunderstorms started out as more isolated and moved eastward.
16 on June 20, oldest first.
During Friday, June 20th, very warm, moist and unstable air was in place across much of Michigan's Lower Peninsula, ahead of a strong, slow-moving cold front across the western Great Lakes region.
Summary of flash flooding on June 20 1999:A cluster of thunderstorms developed during the early morning hours of June 20 on the nose of a nocturnal low-level jet.
Strong thunderstorms produced an estimated 3 inches of rainfall in only a few hours in the Uniontown area. This heavy rainfall flooded roadways in Uniontown, leaving several motorists stranded in their cars.
Heavy rain started minor flooding across Lancaster county during the early afternoon of Friday June 21st. By mid evening, significant flooding began.
Large hail caused damage to a vehicle
A large upper level low pressure area along with deep moisture brought very heavy rains to central South Dakota. Rainfall amounts of 3 to 7 inches occurred across parts of the area resulting in flash flooding.
A thunderstorm complex tracked across east Tennessee during the morning hours. Storm reports contained damaging thunderstorm wind along with flash flooding. One person drowned in Claiborne County.
S. waterway in the past century, comparable in extent to the Great Mississippi Flood of 1927 and Great Flood of 1993.
From Wikipedia, CC BY-SA 4.0.
A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state.
Three people were killed in two separate accidents when they unknowingly drove their vehicles into a 12 to 15 foot deep washout area. The washout occurred southwest of Willard (Clark County) on County Highway M where it crossed Scott Creek.
Although ground-truth reports of severe-criteria hail and wind emanated from only seven counties mainly within northern and central portions of South Central Nebraska on this Friday, the coverage of non-severe thunderstorms and locally heavy rain became rather widespread across…
Moisture returning to eastern Nebraska and western Iowa during the afternoon on June 20th allowed for the development of scattered thunderstorms. The thunderstorms were responsible for mainly large hail across the area, but some strong winds were reported as well.
Heavy rain with little, if any, lightning moved along a stationary front in a tropical environment. Moisture was plentiful, with precipitable water values of over 2 inches.
The Wabash, Little Wabash, and Ohio Rivers rose back above flood stage late in the month. These river rises were in response to a series of nearly stationary fronts and outflow boundaries between the 16th and 24th.
A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota.
A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota.
26 on June 20, oldest first.
Numerous trees were downed. A total of 42 utility poles were downed resulting in loss of electricity for much of the county. A double wide mobile home in transportation on County Road 50 was blown over.
Large hail did considerable damage to thousands of acres of crops from Hooper to Fremont. Estimates of 4,000 homes and countless vehicles had damage from the winds and hail.
Strong winds knocked trees down along Rte. 80 near West Buffalo Township.
Grapefruit sized hail fell in Egypt. 30-40% of homes with significant damage to roofs and windows. Trees snapped and many cars totalled. Significant agriculture loss (1000 acres sorgham, 2000 acres corn, and 1000 acres soybeans destroyed).
Large hail did considerable damage to 45,000 acres of crops from Hooper to Fremont.
TREES AND POWERLINES WERE TAKEN DOWN BY A STORM JUST NORTH OF BETHUNE ON HIGHWAY 341. THREE PEOPLE WERE KILLED IN A TRAFFIC RELATED ACCIDENT AT THE SAME TIME WHEN THEY LOST CONTROL OF THEIR VEHICLE IN AN INTENSE DOWNBURST OF RAIN ALSO ON HIGHWAY 341.
Wind driven hail cut corn stalks to the ground. Damage was reported to thousands of acres of corn, soybeans, sorghum, and wheat in Butler County.
Strong and damaging winds swept through Eastern Iowa and Northwestern Illinois causing several injuries and one fatality. Many large healthy, even landmark, trees were downed. Downed trees caused widespread power outages and blocked roads.
Thunderstorms along Interstate 80 produced a variety of weather across south-central Nebraska. Winds from 60 to 75 mph along with hail up to an inch and a half in diameter causes considerable crop and property damage. Several funnel clouds were spotted in Dawson County.
Large hail completely destroyed 50 thousand acres of crops in Brule County and caused 50 percent or greater crop damage to an additional 30 thousand acres.
A severe thunderstorm produced very large hail from the Beulah area to the Colorado City area. Damage was done to vehicles and buildings, including a bank in Colorado City. Its roof collapsed from the weight of hail and rain which collected on the flat roof.
A couple of slow moving thunderstorms dropped large hail on parts of Pueblo from the southwest to northeast. There was damage primarily to the roofs of structures and vehicles.
Nineteen people were injured by lightning at the Fourth Annual Kremmling Cliff Classic Golf Tournament. The group of people were on a bluff overlooking the town when the lightning struck. Four people had to be hospitalized, two suffered serious injuries.
A strong cold front was the catalyst for a large severe weather event across much of the region.
Severe thunderstorms dropped large hail over portions of central Upper Michigan on the afternoon of the 20th. The hardest hit areas were downtown Marquette and Harvey where damage estimates from the storms were reported to be over $60,000,000.
Clusters of thunderstorms produced wind damage and hail across the forecast area of central South Carolina. Wind damage was mainly confined to trees and powerlines.
Scattered thunderstorms developed over Upstate South Carolina during mid-afternoon and organized into clusters as they moved into the North Carolina Piedmont during late afternoon and evening. These clusters produced strong to severe wind gusts across the southern Piedmont.
Severe thunderstorms developed across northwest Nebraska during the late evening hours on June 20th and continued overnight as storms moved southeast. The storms produced large hail up to the size of softballs and damaging winds.
Thunderstorms developed ahead of an approaching cold front. The first round of storms developed across southern Ontario just west of the St. Lawrence River and moved east across Jefferson and northern Lewis counties producing fairly widespread wind damage.
Although just one lone strong-to-severe thunderstorm tracked across far southern portions of South Central Nebraska on this Tuesday evening, it wreaked havoc on one particular community: Superior in Nuckolls County.
An upper level disturbance and surface front combined with daytime heating, strong atmospheric instability and moderate deep layer shear to produce widespread severe thunderstorms that produced damaging winds. A 61-year-old male was killed by a fallen tree in Columbia, SC.
A damaging wind event unfolded across west-central Minnesota during the evening of June 20 and into the overnight hours of June 21.
A surface boundary set up over central North Dakota, as a weak shortwave trough approached the region. Very strong instability developed through central North Dakota, with elevated deep-layer shear.
During the evening of Friday, June 20th into the early morning hours of June 21st, much of the region was affected by severe weather.
Intensifying low pressure across Maine and New Brunswick combined with high pressure across Ontario and a cooler, drier airmass across NY and VT led to strong mixing of the atmosphere and gusty gradient winds of 35 to 40 mph with a few higher gusts.
14 on June 20, oldest first.
A hot weekend on June 20th and 21st caused the first heat related death within the City of Philadelphia as a 73-year-old man died. The windows of his home were completely shut with no air conditioning.
Thirty persons in Camden that attended the Mellon Jazz Festival at the Wiggins Waterfront Park fainted in the 90-degree-heat. The high temperature at Philadelphia International Airport reached 92 degrees. It was the first 90 degree day in the month of June.
A brief, one day heat wave affected parts of southeast Wisconsin, resulting in the death of a 38-year-old male in the city of Milwaukee. After several days with maximum temperatrures in the 50s, 60's and 70's, the heat on June 20th was sudden enough to affect humans.
A man collapsed at a house in Yukon,Oklahoma on Tuesday June 20 due to the heat. He died from the effects of heat stress the following day in the hospital.
Temperatures on June 20th in Dallas County rose to 100 degrees in the afternoon. The heat caused one direct and one indirect death of the elderly. Heat index values were below 105 degrees and there was no heat advisory in effect.
Ambient temperatures over 100 degrees and heat index temperatures above 105 degrees resulted in the death of an elderly woman in her mobile home in Bossier Parish.
A drought, which began the in the middle of June expanded east into western Nebraska to impact hydrologic and agricultural types. Precipitation was well below normal as temperatures rose well above normal.
Unseasonably hot weather that started on the 20th and persisted into the 22nd across extreme southeastern Pennsylvania resulted in high temperatures in the mid to upper 90s and afternoon heat indices of around 100 degrees.
High pressure to the south resulted in a hot and humid airmass across the local area.
A strong ridge of high pressure aloft was anchored over the south central United States during the middle of the month. This pattern resulted in temperatures in the mid 90s to near 100 across much of eastern Oklahoma.
Dry southwesterly flow aloft over the region with an upper level ridge situated to the east over New Mexico and Texas resulted in temperatures climbing several degrees above normal in Phoenix going into the latter part of June.
Record high temperatures and above normal humidity continued into the latter part of the month of June. Afternoon heat index values were around 120 degrees at Kingsville and Corpus Christi from the 20th to the 23rd, with highest value of 127 at Kingsville on the 20th.
Conditions averaged warm (3 to 5 degrees above normal) and dry (50-75 percent of normal) across southeast South Dakota during June and resulted in up to a slight worsening of drought conditions.
Heat Advisories were expanded to the remainder of North and Central Texas as the June heat continued to intensify. Heat index values met or exceeded 105 degrees most afternoons, with ambient temperatures reaching 102 or greater across a few locations on some afternoons.
1 on June 20, oldest first.
On this date in 2011, scattered severe thunderstorms developed along a dry line that had pushed through southwest Oklahoma, while more widespread severe storms developed along a cold front over northern Oklahoma. Several storms produced golf-ball size hail and wind gusts as high as 70 mph. The hardest hit areas were around Medford and Lamont in northern Oklahoma, and down around Duncan and Walters in southern Oklahoma.
From the National Weather Service in Norman, Oklahoma.
1 on June 20, oldest first.
Circle (Springbrook) recorded 11.5 inches, Montana’s all-time greatest 24-hour precipitation, as the State Climate Extremes Committee lists it.
45 on June 20, oldest first.
The Brewer Fire started on June 20, 1988, in Montana, and burned 48,246 acres.
The Orchard Fire was discovered on June 20, 1993, in California, and burned 16,000 acres; the cause was recorded as natural.
The Bridger Knoll Fire was discovered on June 20, 1996, in Arizona, and burned 35,907 acres; the cause was recorded as natural.
The Hockderffer Fire was discovered on June 20, 1996, in Arizona, and burned 16,400 acres; the cause was recorded as natural.
9 km2) of Santa Clara Pueblo land. The Oso Fire started in the Santa Fe National Forest in New Mexico on June 20, 1998.
From Wikipedia, CC BY-SA 4.0.
The Unnamed Fire was discovered on June 20, 1998, in Volusia County, Florida, and burned 39,000 acres; the cause was recorded as natural.
The Unnamed Fire was discovered on June 20, 1998, in Flagler County, Florida, and burned 26,900 acres; the cause was recorded as natural.
The Kevinjik Fire was discovered on June 20, 1999, in Alaska, and burned 232,828 acres; the cause was recorded as natural.
The Survey Line Fire was discovered on June 20, 2001, in Alaska, and burned 112,112 acres; the cause was recorded as human.
The Fish Creek Fire was discovered on June 20, 2001, in Alaska, and burned 84,730 acres; the cause was recorded as debris and open burning.
The Beaver Creek Fire was discovered on June 20, 2005, in Alaska, and burned 166,439 acres; the cause was recorded as natural.
The Deerfly Fire was discovered on June 20, 2006, in Palm Beach County, Florida, and burned 16,000 acres; the cause was recorded as natural.
The Cow Canyon Fire was discovered on June 20, 2007, in Oneida County, Idaho, and burned 16,312 acres; the cause was recorded as equipment and vehicle use.
The Siskiyou-Blue 2 Complex (Blue 2) Fire was discovered on June 20, 2008, in Siskiyou County, California, and burned 65,834 acres; the cause was recorded as natural.
The Lime Complex (Lime) Fire was discovered on June 20, 2008, in Trinity County, California, and burned 25,199 acres; the cause was recorded as natural.
The Little Black One Fire was discovered on June 20, 2009, in Alaska, and burned 349,450 acres; the cause was recorded as natural.
The Schultz Fire started on June 20th as a result of an abandoned campfire. The fire started just east of Schultz Tank...about 10 miles north-northeast of the Flagstaff Pulliam Airport. Strong winds driven by local topography pushed the fire to the northeast.
The Schultz Fire was discovered on June 20, 2010, in Coconino County, Arizona, and burned 15,075 acres; the cause was recorded as recreation and ceremony.
The White Hat Fire was discovered on June 20, 2011, in Coke County, Texas, and burned 72,473 acres; the cause was recorded as human.
The Prospect Creek Fire was discovered on June 20, 2013, in Alaska, and burned 64,078 acres; the cause was recorded as natural.
The Ray River 2 Fire was discovered on June 20, 2013, in Alaska, and burned 22,836 acres; the cause was recorded as natural.
The Torment Creek Fire was reported on June 20, 2015, in Yukon-Koyukuk County, Alaska, and burned 82,432 acres; the cause was recorded as natural.
The Iditarod River Fire was reported on June 20, 2015, in Yukon-Koyukuk County, Alaska, and burned 75,135 acres; the cause was recorded as natural.
The Blair Fire was reported on June 20, 2015, in Fairbanks North Star County, Alaska, and burned 37,597 acres; the cause was recorded as natural.
The Old Woman Fire was reported on June 20, 2015, in Nome County, Alaska, and burned 36,965 acres; the cause was recorded as natural.
The Fog River Fire was reported on June 20, 2015, in Bethel County, Alaska, and burned 35,580 acres; the cause was recorded as natural.
The Hickey Creek Fire was reported on June 20, 2015, in Yukon-Koyukuk County, Alaska, and burned 33,131 acres; the cause was recorded as natural.
The Long Lake Fire was reported on June 20, 2015, in Southeast Fairbanks County, Alaska, and burned 27,066 acres; the cause was recorded as natural.
The Kilo Fire was reported on June 20, 2015, in Yukon-Koyukuk County, Alaska, and burned 25,117 acres; the cause was recorded as natural.
The Sisters Fire was reported on June 20, 2015, in Nome County, Alaska, and burned 20,049 acres; the cause was recorded as natural.
A strong dome of high pressure centered over the southwestern United States along with exceptionally dry air set the stage for a brutal heatwave over New Mexico for several days.
The Rhoades Canyon 0301 Rn Fire was reported on June 20, 2017, in Wheeler County, Oregon, and burned 15,200 acres; the cause was recorded as human.
The Wilderness Fire was reported on June 20, 2019, in Yukon-Koyukuk County, Alaska, and burned 52,497 acres; the cause was recorded as natural.
The Central Fire was a wildfire that burned in Tonto National Forest in Maricopa County, Arizona in the United States. The fire, which was first reported on June 20, 2020, burned a total of 4,499 acres (1,821 ha).
From Wikipedia, CC BY-SA 4.0.
The Muddy Slide Fire was a wildfire that started near Yampa, Colorado, United States, on June 20, 2021. The fire burned 4,093 acres (1,656 ha) and was fully contained on September 14, 2021.
From Wikipedia, CC BY-SA 4.0.
The Pack Fire was reported on June 20, 2022, in Yukon-Koyukuk County, Alaska, and burned 29,866 acres; the cause was recorded as natural.
The Naluk Fire was reported on June 20, 2024, in Northwest Arctic County, Alaska, and burned 23,406 acres; the cause was recorded as natural.
The Christian Fire was reported on June 20, 2025, in Yukon-Koyukuk County, Alaska, and burned 64,065 acres; the cause was recorded as natural.
The Ptarmigan Complex was reported on June 20, 2025, in Yukon-Koyukuk County, Alaska, and burned 50,429 acres.
The Aggie Creek Fire was reported on June 20, 2025, in Fairbanks North Star County, Alaska, and burned 34,837 acres; the cause was recorded as natural.
The River Trail Fire was reported on June 20, 2025, in Southeast Fairbanks County, Alaska, and burned 23,827 acres; the cause was recorded as natural.
The Takoma Fire was reported on June 20, 2025, in Yukon-Koyukuk County, Alaska, and burned 19,889 acres; the cause was recorded as natural.
The Conner Fire was reported on June 20, 2025, in Douglas County, Nevada, and burned 17,714 acres; the cause was recorded as human.
The Tatlanika Fire was reported on June 20, 2026, in Denali County, Alaska, and burned 38,636 acres; the cause was recorded as natural.
The Hastings Fire was reported on June 20, 2026, in Tooele County, Utah, and burned 26,423 acres; the cause was recorded as human.
15 on June 20, oldest first.
A magnitude 7.7 earthquake struck Tungurahua,cotopaxi,chimborazo, Ecuador. It killed 6,500 people and did severe (about $5 to $25 million) damage.
A magnitude 5.7 earthquake struck Hamhung, North Korea.
A magnitude 7.5 earthquake struck Tokyo, Japan. It killed 24 people, injured 157 and destroyed 90 houses.
A magnitude 7 earthquake struck Tehuantepec, Mexico. It caused a tsunami.
An earthquake struck Northern Italy.
A magnitude 6.4 earthquake struck Hendek, Adapazari, Turkey. It killed 285 people and did severe (about $5 to $25 million) damage.
A magnitude 4.5 earthquake struck Kozjansko, Slovenia, Balkans NW.
A magnitude 6.4 earthquake struck Thessaloniki, Greece. It killed 50 people and did $250 million in damage. It caused a tsunami.
A magnitude 7.3 earthquake struck Rasht, Qazvin, Zanjan, Rudbar, Manjil, Iran. It killed 40,000 people, injured 105,000, destroyed 100,000 houses and did $7.2 billion in damage. It caused a tsunami.
A magnitude 7.5 earthquake struck Gorontalo, Mamado, Minahassa, Indonesia. It did severe (about $5 to $25 million) damage.
A magnitude 5.9 earthquake struck Firuzabad, Shiraz, Iran. It killed 3 people, injured 100 and did severe (about $5 to $25 million) damage.
A magnitude 4.5 earthquake struck Rangpur, Thakurgaon, Almanagar, Bangladesh. It injured 55.
A magnitude 6.8 earthquake struck San Juan, Ovalle, Coquimbo, Argentina, Chile. It injured 1.
A magnitude 4.5 earthquake struck Gansu Province, China. It injured 5.
A magnitude 5.3 earthquake struck Baoshan, Yunnan Province, China. It injured 4.
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Karangetang, Indonesia erupted with a Volcanic Explosivity Index of 2. It killed 1 person and injured 2.
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A tsunami caused by a magnitude 6.3 earthquake struck Levantian Sea, Cyprus. It did severe (about $5 to $25 million) damage.
A tsunami struck Campania, Italy.
A tsunami struck Banda Sea, Indonesia.
A tsunami caused by a magnitude 7 earthquake struck S. Mexico.
A tsunami caused by a magnitude 6.4 earthquake struck Thessaloniki (Salonica), Greece, with a maximum water height of 0.45 meters. It killed 50 people and did $250 million in damage.
A tsunami with a source recorded as earthquake and landslide struck Caspian Sea, Iran, with a maximum water height of 2 meters. It killed 40,000 people, injured 105,000, destroyed 100,000 houses and did $7.2 billion in damage.
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A G1 (minor) geomagnetic storm began June 20, 1937, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 25; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1941, reached Kp 5+ and lasted 3 hours, with a daily Ap as high as 22; at that Kp the aurora may be seen from about 58 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1943, reached Kp 5+ and lasted 3 hours, with a daily Ap as high as 23; at that Kp the aurora may be seen from about 58 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1964, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 17; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1985, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 13; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1989, reached Kp 5+ and lasted 9 hours, with a daily Ap as high as 28; at that Kp the aurora may be seen from about 58 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began June 20, 1995, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 21; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
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A severe storm disaster that cost $1.7 billion in 2024 dollars and killed 12, on NOAA’s billion-dollar list. It lasted from June 20, 1998 to June 24, 1998.
12 on June 20, oldest first.
Victim was riding a bike in heavy rainfall when struck by lightning.
A few isolated thunderstorms were associated with two lightning strikes that injured two people and killed another.
Lightning struck and killed a man southwest of Meeteetse.
More frequent and stronger than average rip currents claimed the lives of two men and caused dozens of rescues along New Jersey beaches on the 20th. Both drownings occurred after lifeguards left for the day.
A man drowned near Nags Head after a rip current pulled him out to sea.
Officials say a man and a woman were pulled from the water near St. Andrews State Park during double red flag conditions from rip currents. The sheriff's office said the man died.
Strong rip currents off of Conimicut Point in Warwick, RI (Narragansett Bay) caused the drowning death of a 10 year old girl and of the 45 year old man who went in to attempt to rescue her.
A 19 year old man and a 14 year old female family member began struggling in choppy waves in Lake Michigan where a rip current may have carried them into deeper water. A witness was able to rescue the 14 year old girl.
A strong rip current developed in Myrtle Beach, SC with a southeast swell that led to multiple rescues and one fatality.
On June 20, a 19-year-old man vacationing from Oklahoma got caught in a rip current and drowned behind Sharky's during the afternoon. Single red beach flags were flying at the time and a rip current statement was in effect.
High surf and strong rip currents along the beaches of east central Florida produced dangerous swimming conditions. A married couple visiting from Pennsylvania drowned in the waters near Stuart Beach.
A bolt from the blue struck and killed a man visiting New Smyrna Beach from Colorado.
Gathered from this site’s archives: the tornado record (NOAA SPC, and Grazulis before 1950), IBTrACS and the National Hurricane Center, NOAA NCEI’s Storm Events Database, Regional Snowfall Index, billion-dollar disasters list, State Climate Extremes Committee and hazard databases, USGS, NIFC, GFZ Potsdam’s Kp index (CC BY 4.0), the National Weather Service in Norman, Oklahoma, and Wikidata (CC0), with article leads from Wikipedia under CC BY-SA 4.0, each credited where it appears. Rebuilt 2026-09-24.