Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for April 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.
Tornadoes
An F4 tornado touched down in Oktibbeha, Clay, Monroe counties, Mississippi and tracked 129.8 miles, 800 yards wide at its widest, killing 88 and injuring 700. From Grazulis's record of significant tornadoes: Aberdeen/Starkville, MS and Waco, AL.
Earthquakes
A magnitude 6.6 earthquake struck Longmen, Sichuan Province, China. It killed 196 people, left 21 missing, injured 11,470 and did $6.8 billion in damage.
Earthquakes
A magnitude 7.6 earthquake struck Gilan, W Mazandaran, Iran. It killed 3,000 people and did severe (about $5 to $25 million) damage. It caused a tsunami.
Tsunamis
A tsunami caused by a magnitude 7.6 earthquake struck Caspian Sea, Iran. It killed 3,000 people and did severe (about $5 to $25 million) damage.
Earthquakes
A magnitude 6 earthquake struck Mialoi, Taiwan. It killed 3,276 people, injured 12,053, destroyed 17,907 houses and did extreme (about $25 million or more) damage.
Tornadoes
An F4 tornado touched down in Jasper, Lauderdale counties, Mississippi and tracked 48.9 miles, 400 yards wide at its widest, killing 36 and injuring 200. From Grazulis's record of significant tornadoes: Meridian, MS.
Tornadoes
An F4 tornado touched down in Madison County, Alabama and tracked 20.3 miles, 400 yards wide at its widest, killing 27 and injuring 100. From Grazulis's record of significant tornadoes: S Lily Flagg to S Huntsville, AL.
Tornadoes
An F4 tornado touched down in Union, Tippah, Prentiss counties, Mississippi and tracked 60.2 miles, 400 yards wide at its widest, killing 24 and injuring 180. From Grazulis's record of significant tornadoes: Ingomar, MS.
Tornadoes
An F4 tornado touched down in Neshoba, Kemper, Winston counties, Mississippi and tracked 40.1 miles, 400 yards wide at its widest, killing 27 and injuring 60. From Grazulis's record of significant tornadoes: New Deemer, MS.
Tornadoes
An F4 tornado touched down in Fayette, Walker, Winston counties, Alabama and tracked 50.7 miles, 400 yards wide at its widest, killing 21 and injuring 50. From Grazulis's record of significant tornadoes: Arley, AL.
Earthquakes
A magnitude 6.7 earthquake struck Locride, Malesina-Martinon (Lokris), Greece. It killed 255 people and did severe (about $5 to $25 million) damage.
Tornadoes
An F4 tornado touched down in Wise County, Texas and tracked 15.2 miles, 300 yards wide at its widest, killing 4 and injuring 10. From Grazulis's record of significant tornadoes: S Boonville to Boyd, TX.
130 on April 20, oldest first.
An F4 tornado touched down in Sandusky County, Ohio and tracked 5.8 miles, 800 yards wide at its widest, killing 2 and injuring 20. From Grazulis's record of significant tornadoes: Booktown, OH.
An F4 tornado touched down in Wise County, Texas and tracked 15.2 miles, 300 yards wide at its widest, killing 4 and injuring 10. From Grazulis's record of significant tornadoes: S Boonville to Boyd, TX.
An F4 tornado touched down in Noble, Pawnee counties, Oklahoma and tracked 30.4 miles, 800 yards wide at its widest, killing 3 and injuring 12. From Grazulis's record of significant tornadoes: SE Perry to SW Ralston, OK.
An F4 tornado touched down in Rush County, Kansas and tracked 14.6 miles, 400 yards wide at its widest, killing 2 and injuring 15. From Grazulis's record of significant tornadoes: Bison, KS.
An F4 tornado touched down in Kingfisher County, Oklahoma and tracked 11.3 miles, 800 yards wide at its widest, killing 2 and injuring 6. From Grazulis's record of significant tornadoes: Hennessey, OK.
An F4 tornado touched down in Denton County, Texas and tracked 18 miles, 800 yards wide at its widest, killing 1 and injuring 10. From Grazulis's record of significant tornadoes: W Roanoke to S Lewisville, TX.
An F4 tornado touched down in Canadian, Oklahoma counties, Oklahoma and tracked 15.3 miles, 200 yards wide at its widest, killing 1 and injuring 1. From Grazulis's record of significant tornadoes: W Yukon to E Edmond, OK.
An F3 tornado touched down in Collin County, Texas and tracked 9.3 miles, 300 yards wide at its widest, killing 2 and injuring 7. From Grazulis's record of significant tornadoes: S Princeton to Farmersville, TX.
An F3 tornado touched down in Harper County, Kansas and tracked 11.7 miles, 200 yards wide at its widest, killing 1 and injuring 8. From Grazulis's record of significant tornadoes: NW Waldron/S Corunna, KS.
An F3 tornado touched down in Noble County, Oklahoma and tracked 10.9 miles, injuring 14. From Grazulis's record of significant tornadoes: NW Orlando to Perry, OK.
An F3 tornado touched down in Wise, Cooke counties, Texas and tracked 22.4 miles, 150 yards wide at its widest, injuring 10. From Grazulis's record of significant tornadoes: Alvord/W Greenwood to S Rosston, TX.
An F3 tornado touched down in Kingman County, Kansas and tracked 15.1 miles, 100 yards wide at its widest, injuring 4. From Grazulis's record of significant tornadoes: E Nashville to Willowdale, KS.
An F3 tornado touched down in Oklahoma, Logan, Lincoln counties, Oklahoma and tracked 14.3 miles, 300 yards wide at its widest. From Grazulis's record of significant tornadoes: NW Arcadia to N Fallis, OK.
An F1 tornado touched down in Williamson County, Texas, killing 1 and injuring 1. From Grazulis's record of significant tornadoes: Taylor, TX.
An F2 tornado touched down in Mobile County, Alabama and tracked 0.9 miles, 25 yards wide at its widest, killing 1 and injuring 1. From Grazulis's record of significant tornadoes: NW Mobile, AL.
An F4 tornado touched down in Oktibbeha, Clay, Monroe counties, Mississippi and tracked 129.8 miles, 800 yards wide at its widest, killing 88 and injuring 700. From Grazulis's record of significant tornadoes: Aberdeen/Starkville, MS and Waco, AL.
An F4 tornado touched down in Jasper, Lauderdale counties, Mississippi and tracked 48.9 miles, 400 yards wide at its widest, killing 36 and injuring 200. From Grazulis's record of significant tornadoes: Meridian, MS.
An F4 tornado touched down in Madison County, Alabama and tracked 20.3 miles, 400 yards wide at its widest, killing 27 and injuring 100. From Grazulis's record of significant tornadoes: S Lily Flagg to S Huntsville, AL.
An F4 tornado touched down in Union, Tippah, Prentiss counties, Mississippi and tracked 60.2 miles, 400 yards wide at its widest, killing 24 and injuring 180. From Grazulis's record of significant tornadoes: Ingomar, MS.
An F4 tornado touched down in Neshoba, Kemper, Winston counties, Mississippi and tracked 40.1 miles, 400 yards wide at its widest, killing 27 and injuring 60. From Grazulis's record of significant tornadoes: New Deemer, MS.
An F4 tornado touched down in Fayette, Walker, Winston counties, Alabama and tracked 50.7 miles, 400 yards wide at its widest, killing 21 and injuring 50. From Grazulis's record of significant tornadoes: Arley, AL.
An F2 tornado touched down in Maury, Williamson counties, Tennessee and tracked 14.8 miles, killing 1 and injuring 10. From Grazulis's record of significant tornadoes: NE Thompons Station, TN.
An F3 tornado touched down in Otoe County, Nebraska and tracked 10.7 miles, 200 yards wide at its widest. From Grazulis's record of significant tornadoes: NW Douglas/N Unadilla, NE.
An F3 tornado touched down in Greenwood County, Kansas and tracked 7.8 miles, 200 yards wide at its widest, killing 1 and injuring 3. From Grazulis's record of significant tornadoes: Reece, KS.
An F3 tornado touched down in Polk, Dallas counties, Missouri and tracked 20.1 miles, 200 yards wide at its widest, injuring 29. From Grazulis's record of significant tornadoes: Bolivar to NW Buffalo, MO.
An F3 tornado touched down in Bourbon, Vernon, Bates counties, Kansas and tracked 30 miles, 600 yards wide at its widest, injuring 6. From Grazulis's record of significant tornadoes: SE Uniontown/NW Fort Scott/E Devon/E Fulton, KS/SE Hume to S Foster, MO.
An F3 tornado touched down in Barton, Vernon counties, Missouri and tracked 21.9 miles, 200 yards wide at its widest, injuring 6. From Grazulis's record of significant tornadoes: W Oskaloosa/NW Shelton to E Nevada, MO.
An F3 tornado touched down in Frontier County, Nebraska and tracked 5.9 miles, 1,760 yards wide at its widest.
An F3 tornado touched down in Cass County, Iowa and tracked 6.1 miles, 350 yards wide at its widest, injuring 1.
An F3 tornado touched down in Caddo County, Oklahoma and tracked 1 miles, 200 yards wide at its widest.
A tornado struck 5 miles north of Cyril on this day in 1967. A pickup truck, driving along State Highway 8, stalled because of the wind, then was lifted by the tornado, turned around to face the opposite direction, and set down again, without damage. The driver, who described the funnel as being full of mud, was uninjured.
From the National Weather Service in Norman, Oklahoma.
An F4 tornado touched down in Macon County, Missouri and tracked 3.8 miles, 440 yards wide at its widest, killing 1 and injuring 3.
An F3 tornado touched down in Boone County, Arkansas and tracked 7.8 miles, 500 yards wide at its widest, killing 1 and injuring 19.
An F3 tornado touched down in Pontotoc County, Oklahoma and tracked 7.9 miles, 100 yards wide at its widest, injuring 21.
An F3 tornado touched down in Dade County, Missouri and tracked 7.8 miles, 100 yards wide at its widest, injuring 6.
An F3 tornado touched down in Benton, Pettis counties, Missouri and tracked 19.4 miles, 100 yards wide at its widest, injuring 4.
An F3 tornado touched down in Cedar County, Missouri and tracked 1 miles, 50 yards wide at its widest.
An F3 tornado touched down in Pettis County, Missouri and tracked 5 miles, 50 yards wide at its widest.
An F3 tornado touched down in Benton, Pettis counties, Missouri and tracked 10.1 miles, 100 yards wide at its widest.
An F3 tornado touched down in Scotland County, Missouri and tracked 9.5 miles, 440 yards wide at its widest.
An F3 tornado touched down in Buffalo, Dawson, Sherman counties, Nebraska and tracked 63.5 miles, 880 yards wide at its widest, injuring 6.
An F3 tornado touched down in Grady, Canadian, Oklahoma counties, Oklahoma and tracked 63.6 miles, 100 yards wide at its widest, injuring 3.
An F3 tornado touched down in Nuckolls, Thayer, Fillmore counties, Nebraska and tracked 41.6 miles, 10 yards wide at its widest.
An F3 tornado touched down in Jefferson County, Oklahoma and tracked 6.1 miles, 100 yards wide at its widest.
An F1 tornado touched down in Natchitoches Parish, Louisiana and tracked 0.4 miles, 60 yards wide at its widest, killing 1 and injuring 27.
An F1 tornado touched down in Blaine County, Oklahoma and tracked 12.5 miles, 10 yards wide at its widest, killing 1 and injuring 7.
An F3 tornado touched down in Pipestone, Murray counties, Minnesota and tracked 8 miles, 250 yards wide at its widest, injuring 2.
An F3 tornado touched down in Cumberland County, Kentucky and tracked 3 miles, 400 yards wide at its widest, injuring 2.
Quarter-size hail was reported three miles west of Sulligent.
The winds gusted to 50 to 55 mph.
Three houses were destroyed. Three people were taken to the hospital for superficial injuries. Several roads were closed due to downed trees and power lines.
Hail up to the size of golf balls were reported by the public near sunrise. Widespread damage was reported to roofs and windows of homes across the city.
Several trees and power lines were blown down.
A tornado touched down on the on the East side of interstate 75 at the Ky 21 exit at 445 am est. There the tornado destroyed a Sunoco gasoline station and ripped the roof of a Howard Johnson's motel.
Southern Ontario's worst tornado outbreak of the decade came on Saturday, April 20, 1996. S.
From Wikipedia, CC BY-SA 4.0.
A strong line of thunderstorms entered middle Tennesee Saturday morning, April 20. The storms moved from northwest to southeast. Some of these storms produced tornadoes, but a significant part of the damage occurred from straight line winds.
A tornado embedded in straight-line winds moved through Lincoln county destroying or damaging 20 houses and mobile homes and 6 buildings.
Weak tornado destroyed several buildings and damaged several more. Numerous trees were uprooted also. This storm was one of two to produce significant damage in the county.
6 houses were damaged 2 miles west of Greenville due to a brief F2 tornado. Also, mobile homes were overturned near the intersection of Georgetown and Greenville Roads, and a rescue unit was deployed. There were no serious injuries, however.
118 houses were damaged due to downburst winds and an embedded F1 tornado just East of Mt. Washington. 3 homes and 2 mobile homes were destroyed. Most of the damage was in the Country Trace Estates sub-division. An 80 mph wind was reported on Zoneton Road.
A supercell produced a brief tornado along with downburst winds as it tracked east-northeast. The tornado destroyed several farm buildings and a high power transmission tower.
Downburst winds and an embedded F1 tornado damaged 40 homes and 20 barns on a 5 mile path from Red Lick to Barnes Mountain. The Barnes Mountain area recieved the worst damage. The DES reported 3 homes were destroyed with pieces of the homes blown into the valley.
Trees down.
An F1 tornado touched down in Bedford County, Tennessee and tracked 2 miles, 60 yards wide at its widest, killing 1.
The tornado first touched down about 2.5 mles west of Wartrace at the intersection of Railroad Avenue and Horse Mountain Road...having an intensity of F1 and a width of about 200 feet.
Numerous trees and power lines were blown down countywide. In Bluffs, several vehicles were damaged due to fallen trees. Also, the roof of a bus barn at the junior/senior high school was torn away by the winds. One tree fell onto a home causing minor roof damage.
Twenty one homes in the Scenic Hills Estates subdivision received damage. One was totaled. The storm moved in from the southwest. The main damage came from straight-line winds, however, the one home that was totally destroyed was clearly from tornado damage.
A complex and active weather pattern was in place over the upper Midwest. A warm front lifted north across the state during the previous day, allowing a strong surge of moisture to flow north from the Gulf of Mexico.
An F3 tornado touched down in Putnam, LaSalle counties, Illinois and tracked 15.8 miles, 880 yards wide at its widest, killing 8 and injuring 12.
The tornado entered LaSalle County from Putnam County, approximately 3 miles northeast of the town of Standard, producing F0 intensity damage in a wooded area southwest of Peru.
32 tornadoes were recorded on April 20, 2004, in Illinois, Indiana, Nebraska, Oklahoma, Iowa. They killed 8 people.
3 low-topped supercell thunderstorms dropped down at least 1 tornado a piece and a total of 6 tornadoes across Central Indiana during the late afternoon and early evening of April 20. All of the tornadoes were F0 or F1 in rating.
The low topped supercell that produced 2 earlier tornadoes in Stark and Marshall/Bureau counties continued to be a cyclic tornado producer.
A tornado touched down at the intersection of 1300N and 750E in northwestern Douglas County. In this location it damaged the front porch of a home, destroyed the garage, damaged a couple of sheds and blew down several large trees.
On April 20th, 2004 a warm front located across central Indiana in the afternoon began to move north in the evening as a strong southerly flow rode over the front, creating an favorable environment for rapid thunderstorm development.
A small tornado was spotted by the public as it touched down east of Hye. The tornado destroyed a barn, then lifted back up into the parent thunderstorm. No other damage was indicated.
An EF3 tornado touched down in Frontier, Lincoln counties, Nebraska and tracked 15.74 miles, 440 yards wide at its widest, injuring 2.
Scattered thunderstorms developed just west of the Hastings CWA. One storm entered extreme western Dawson County and produced hail and one tornado. The tornado started south of Gothenburg and moved north.
Supercells developed rapidly and became tornadic across southwest Nebraska during the evening of April 20th.
A deep low pressure system moving east across the Great Lakes pushed a strong cold front across the region on late April 20th into early April 21st.
A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area.
A long lived quasi-linear convective system (QLCS) developed in northern and central Mississippi and tracked eastward through northern Alabama during the early morning hours of the 20th.
Isolated thunderstorms developed along a weak cold front April 20, near the Lower Trans Pecos and Stockton Plateau.
A rapidly developing disturbance racing through southeast Texas triggered the loaded gun of an unstable atmosphere during the late afternoon of April 20th, and thunderstorms exploded into the atmosphere well above the freezing layer.
Scattered thunderstorms ignited early on the afternoon of the 20th across the southern Texas Panhandle as a slow-moving upper trough encountered moderate instability east of a weak dryline.
An upper level trough moved across the southwest US and brought a cold front through Central Texas. Thunderstorms developed in the warm, moist airmass south of the front in response to a mid-level shortwave trough.
40 tornadoes were recorded on April 20, 2025, in Oklahoma, Missouri, Kansas, Arkansas, Illinois.
A strong storm system moved through the area on Sunday April 20th, 2025. This system brought tornadoes, damaging wind, large hail and heavy rain. The heavy rainfall led to flooding as the area had already received heavy rainfall from storms earlier in the week.
During the early afternoon on Sunday, April 20, 2025 (Easter Sunday) a severe thunderstorm developed in Miller County, Missouri and moved northward through Cole County and into Callaway County. The thunderstorm produced one EF-2 tornado near New Bloomfield, MO.
A strong storm system moved through the area on Sunday April 20th, 2025. This system brought tornadoes, damaging wind, large hail and heavy rain. The heavy rainfall led to flooding as the area had already received heavy rainfall from the previous week.
Strong to severe thunderstorms developed into northwestern Arkansas during the afternoon of the 20th, as a strong upper level disturbance translated into the Southern Plains, increasing low level forcing along and ahead of a surface front that moved through the region.
During the early evening of Sunday, April 20, 2025 (Easter Sunday) a line of severe thunderstorms responsible for multiple tornadoes and wind damage in Missouri crossed into Illinois.
A line of severe thunderstorms lifted north northeastward across northwest Illinois, mainly south of Interstate 80, on the evening of April 20th. This brought numerous tornadoes to the area as well as straight-line wind damage. Fourteen tornadoes occurred in northwest Illinois.
3 on April 20, oldest first.
Hurricane Thelma reached its peak of 150 kt (175 mph) with a central pressure of 940 mb, a category 5 storm.
Hurricane Georgia reached its peak of 130 kt (150 mph) with a central pressure of 930 mb, a category 4 storm.
Hurricane Isa reached its peak of 145 kt (165 mph) with a central pressure of 940 mb, a category 5 storm.
10 on April 20, oldest first.
Rapid snowmelt combined with rain pushed the Escanaba River above flood stage on the 20th near Cornell. Flooding occuredduring this period to the Escanaba and Ford Rivers along with numerous small streams.
Trees were knocked down by high winds.
Lightning struck an apartment building and caused a fire. The fire did extensive damage to several apartments in the building.
A roof was blown off of a building. Some gas lines were blown off of some overhead heaters. A 100-year-old tree was blown down in Collierville, damaging 10 cars.
County officials reported several trees blown down and a few structures damaged by strong winds.
Two homes were struck by lightning Thursday morning in Brownsville. One home was located on Sulphur Springs Road and received extensive damage. Another home, located on Poplar Corner Road, suffered at least 50 percent damage due to the lightning strike. There were no injuries.
A slow moving cold front caused two rounds of severe thunderstorms across Central Alabama, the first round in the morning hours of April 20, and the second round lasting from the evening of April 20 to the early morning of April 21.
Moderate to heavy rainfall affected the region as an upper level low lifted up across the region.
An upper trough moving through the Southern Plains generated scattered to numerous thunderstorms across North and Central Texas on Thursday April 20.
Persistent isentropic lift generated showers and thunderstorms that led to excessive rainfall and flash flooding.
21 on April 20, oldest first.
On April 20, 1972, severe thunderstorms struck the western parts of north Texas. Near Bonita, in Montague County, flat hailstones, four to five inches in diameter, and one-inch thick, did extensive damage to autos, roofs, and windows.
From the National Weather Service in Norman, Oklahoma.
Downburst winds killed two campers in the Hoosier National Forest in northwest Jackson County around midnight. The downburst winds blew down hundreds of pine trees, many of which fell on the campers in their tent. Massive chest injuries led to their death.
An eighteen year old male was killed when a single tree fell across his mobile home and crushed him. Several trees were blown down just west of where this person was killed.
Several homes and mobile homes were damaged from straight line winds. Many trees and power lines were down. The hardest hit area in the county was 4.7 miles northwest of Manchester or in the Boyton Valley region. The Boyton Valley Baptist Church had major damage.
Separate lines of thunderstorms swept across central Indiana producing numerous large hail and damaging wind reports as a strong low pressure system moved across the state during the afternoon of April 20, 2000.
Thunderstorm winds did widespread damage to areas in and around Mt. Vernon. Several businesses sustained heavy damage at the east end of the Mount Vernon business loop. Winds twisted a large sign off it's pedestal and threw it into an awning that covered gasoline pumps.
Small hail southwest of Chowchilla caused more than $3.25M in damage to 600 acres of apples and 40 acres of cherries.
Thunderstorm wind exceeding 60 mph damaged trees.
A line of fast moving thunderstorms bowed across southeast Nebraska and southwest Iowa this day bringing thunderstorm wind gusts of 60 to 80 mph. This was the first report of damage in the Omaha/Valley NWS coverage area with this line.
Storm analysis and survey concluded that two straight line wind events occurred within a few minutes of each other in and around the California State University Campus in North Fresno. An initial gust from the southwest was followed closely by another from the west-northwest.
A few trees were downed.
Thunderstorm winds downed a few trees and large limbs in Holland and Toledo.
Many large limbs were blown down from the rear flank downdraft of the supercell storm.
Damage?
Scattered severe thunderstorms rumbled across a section of south central Nebraska, along and east of U.S. Highway 281 in the evening and overnight.
The public reported penny to nickel-sized hail.
A severe squall line that developed ahead of a cold front moved across eastern Ohio and western Pennsylvania in the early morning hours of April 20th.
A severe squall line that developed ahead of a cold front moved across eastern Ohio and western Pennsylvania in the early morning hours of April 20th.
A deep upper-level trough and strong short wave moved through the region during the day.
An isolated thunderstorm developed over the North Carolina foothills during the afternoon and steadily intensified as it moved southeast into the South Carolina Piedmont.
3 on April 20, oldest first.
A large avalanche pushed a group of six snow boarders into the Sheep Creek gully of Loveland Pass. This is near but outside the Loveland Ski Area boundary. Five of the six members of the group were completely buried. The survivor was was partially buried.
With slick roads causing accidents across the Kansas City Metro one such accident proved fatal, just on the Missouri side of the Missouri River along I-635 near where it intersects with Horizons Parkway.
A cold front swung through the region late on April 19th, causing temperatures to rapidly drop through the day on Sunday. Rain quickly changed to snow above 4,000 ft elevation, and strong winds caused wind chills to drop below freezing by the afternoon.
3 on April 20, oldest first.
A late season cold snap brought freezing temperatures down into the 20s to southern and Central Missouri on both the mornings of April 21 and April 22.
Above normal temperatures in March and above normal to record high temperatures in early April in Northwest Pennsylvania allowed for area fruit crops to begin budding ahead of schedule in April.
A combination of a period of warm weather in March allowing for crops to bud earlier than normal and a late April hard freeze resulted in widespread crop damage and loss across portions of the Piedmont on April 21.
3 on April 20, oldest first.
Warren 3S recorded 30 inches, Ohio’s all-time maximum 24-hour snowfall, as the State Climate Extremes Committee lists it.
Lenox recorded 24 inches, Iowa’s all-time maximum 24-hour snowfall, as the State Climate Extremes Committee lists it.
Whiteface Mountain recorded 119 inches, New York’s all-time maximum snow depth, as the State Climate Extremes Committee lists it.
38 on April 20, oldest first.
The Unnamed Fire started on April 20, 1985, in New York, and burned 22,985 acres.
The Unnamed Fire was discovered on April 20, 1993, in Miami-Dade County, Florida, and burned 4,001 acres; the cause was recorded as railroad operations and maintenance.
The Gray Fire was discovered on April 20, 1994, in New Mexico, and burned 3,200 acres.
The Unnamed Fire was discovered on April 20, 1995, in North Carolina, and burned 1,000 acres; the cause was recorded as equipment and vehicle use.
The Chino Well Fire was discovered on April 20, 1996, in New Mexico, and burned 8,260 acres; the cause was recorded as human.
The Unnamed Fire was discovered on April 20, 1996, in Broward County, Florida, and burned 1,700 acres; the cause was recorded as railroad operations and maintenance.
The Cypress Creek Fire was discovered on April 20, 1999, in Florida, and burned 2,000 acres; the cause was recorded as arson/incendiarism.
The Oak Mt. Fire was discovered on April 20, 2001, in North Carolina, and burned 2,235 acres; the cause was recorded as debris and open burning.
The Center Fire was discovered on April 20, 2002, in Pima County, Arizona, and burned 1,117 acres; the cause was recorded as human.
The Unnamed Fire started on April 20, 2005, in Florida, and burned 1,445 acres.
The Jupiter Fire was discovered on April 20, 2007, in Kittson County, Minnesota, and burned 2,340 acres; the cause was recorded as debris and open burning.
The Unnamed Fire was discovered on April 20, 2007, in Walton County, Florida, and burned 1,800 acres; the cause was recorded as human.
The Halma Fire was discovered on April 20, 2007, in Kittson County, Minnesota, and burned 1,600 acres; the cause was recorded as arson/incendiarism.
The Beaches Lake Fire was discovered on April 20, 2007, in Kittson County, Minnesota, and burned 1,500 acres; the cause was recorded as arson/incendiarism.
The Unnamed Fire was discovered on April 20, 2007, in Putnam County, Florida, and burned 1,004 acres; the cause was recorded as arson/incendiarism.
The Greer Rd Fire was discovered on April 20, 2008, in Litchfield County, Connecticut, and burned 1,300 acres; the cause was recorded as human.
The Grain Bin Fire was discovered on April 20, 2008, in Marshall County, Minnesota, and burned 1,074 acres; the cause was recorded as arson/incendiarism.
The Empire Fire was discovered on April 20, 2011, in Pima County, Arizona, and burned 2,009 acres; the cause was recorded as equipment and vehicle use.
The Range 66B Fire was discovered on April 20, 2011, in Otero County, New Mexico, and burned 1,100 acres; the cause was recorded as arson/incendiarism.
The Adrian Fire was discovered on April 20, 2011, in Deaf Smith County, Texas, and burned 1,000 acres; the cause was recorded as power generation/transmission/distribution.
The 16 Mile Fire was reported on April 20, 2016, in Monroe County, Pennsylvania, and burned 8,032 acres; the cause was recorded as human.
Drought conditions continued across South Florida into mid April, allowing for the rapid spread of two wildfires, the 30th Avenue Fire, and Frangipani Fire, that started in the Golden Gate Estates area of eastern Naples.
The 30th Ave Fire was reported on April 20, 2017, in Collier County, Florida, and burned 7,068 acres.
The Jayne Fire was reported on April 20, 2017, in Fresno County, California, and burned 5,738 acres.
The Cedar Run Fire was reported on April 20, 2018, in Osage County, Oklahoma, and burned 2,081 acres; the cause was recorded as human.
An elderly man died from burns sustained trying to extinguish a grass fire near Ettrick (Trempealeau County). The fire occurred during the morning of April 20th and was started by a burning pile of garbage.
The Buckthorn Fire was reported on April 20, 2022, in Eddy County, New Mexico, and burned 1,152 acres; the cause was recorded as human.
The Pool Hollow Fire was reported on April 20, 2023, in Centre County, Pennsylvania, and burned 1,200 acres; the cause was recorded as human.
The County Road 121 Fire was reported on April 20, 2023, in Nassau County, Florida, and burned 1,053 acres; the cause was recorded as human.
The 2024 Little Yamsay Fire was a wildfire that burned in Klamath County, Oregon from April 20 to May 13, 2024. The fire was utilized to help break up the forests around Klamath Falls, and was 100% contained as of August 2024.
From Wikipedia, CC BY-SA 4.0.
The Little Yamsay Fire was reported on April 20, 2024, in Klamath County, Oregon, and burned 6,340 acres; the cause was recorded as natural.
The Range Fire was reported on April 20, 2024, in Pinal County, Arizona, and burned 2,000 acres; the cause was recorded as human.
The 52 Split Fire was reported on April 20, 2025, in Ward County, North Dakota, and burned 1,200 acres.
On April 20, 2026 at 4 PM EDT, the Georgia Forestry Commission reported a wildfire developed along Highway 82 near Atkinson, GA.
S. state of Georgia, close to the coast.
From Wikipedia, CC BY-SA 4.0.
The Hwy 82 Fire was reported on April 20, 2026, in Brantley County, Georgia, and burned 22,419 acres.
The Hummingbird Fire was reported on April 20, 2026, in Catron County, New Mexico, and burned 5,716 acres; the cause was recorded as natural.
The East Side Fire was reported on April 20, 2026, in Carbon County, Montana, and burned 1,219 acres; the cause was recorded as human.
20 on April 20, oldest first.
An earthquake struck Concepcion DE LA Vega, Dominican Republic. It did severe (about $5 to $25 million) damage.
A magnitude 7.6 earthquake struck Gilan, W Mazandaran, Iran. It killed 3,000 people and did severe (about $5 to $25 million) damage. It caused a tsunami.
An earthquake struck Selfoss, Iceland. It did severe (about $5 to $25 million) damage.
An earthquake struck Chiquimula, El Salvador, Guatemala. It killed 50 people.
A magnitude 6.7 earthquake struck Locride, Malesina-Martinon (Lokris), Greece. It killed 255 people and did severe (about $5 to $25 million) damage.
A magnitude 6 earthquake struck Mialoi, Taiwan. It killed 3,276 people, injured 12,053, destroyed 17,907 houses and did extreme (about $25 million or more) damage.
A magnitude 7.3 earthquake struck Angol, Traiguen, Chile. It killed 57 people. It caused a tsunami.
A magnitude 7 earthquake struck Greece. It killed 25 people.
A magnitude 5.3 earthquake struck Hebei Province, China. It destroyed 22 houses.
A magnitude 6.1 earthquake struck Oita, Arosan, Japan. It injured 8 and did severe (about $5 to $25 million) damage.
A magnitude 6.8 earthquake struck Solomon Islands. It killed 34 people and did severe (about $5 to $25 million) damage. It caused a tsunami.
A magnitude 7.6 earthquake struck Solomon Islands. It caused a tsunami.
A magnitude 7.5 earthquake struck Solomon Islands.
A magnitude 4.1 earthquake struck Badakhstan, Kabul, Hindu Kush, Afghanistan.
A magnitude 5.2 earthquake struck Clinton, Essex, Au Sable Forks, New York, United States.
A magnitude 7.6 earthquake struck Koryakskiy, Russia. It injured 40 and did $55 million in damage.
A magnitude 5.2 earthquake struck Kalgoorlie, Australia. It injured 3 and did $39 million in damage.
A magnitude 6.6 earthquake struck Longmen, Sichuan Province, China. It killed 196 people, left 21 missing, injured 11,470 and did $6.8 billion in damage.
A magnitude 6.4 earthquake struck Taipei, Taiwan. It killed 1 person and injured 1.
A magnitude 7.4 earthquake struck Off Northeast Coast Honshu, Japan. It injured 10. It caused a tsunami.
1 on April 20, oldest first.
Ijen, Indonesia erupted. It killed 1 person.
7 on April 20, oldest first.
A tsunami caused by a magnitude 7.6 earthquake struck Caspian Sea, Iran. It killed 3,000 people and did severe (about $5 to $25 million) damage.
A tsunami caused by a magnitude 7.3 earthquake struck Central Chile.
A tsunami caused by a magnitude 6.8 earthquake struck Solomon Islands, with a maximum water height of 0.15 meters. It killed 34 people and did severe (about $5 to $25 million) damage.
A tsunami caused by a magnitude 7.6 earthquake struck Solomon Islands.
A tsunami with a source recorded as landslide struck La Fossa Volcano, Vulcano Is., Italy, with a maximum water height of 2 meters.
A tsunami with a source recorded as landslide struck Kasu Cone, Papua New Guinea, with a maximum water height of 15 meters. It killed 1 person, injured 11 and destroyed 2 houses.
A tsunami caused by a magnitude 7.4 earthquake struck Off Northeast Coast Honshu, Japan, with a maximum water height of 0.8 meters. It injured 10.
19 on April 20, oldest first.
A G1 (minor) geomagnetic storm began April 20, 1936, reached Kp 5+ and lasted 6 hours, with a daily Ap as high as 33; at that Kp the aurora may be seen from about 58 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1947, reached Kp 5 and lasted 6 hours, with a daily Ap as high as 30; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 1950, reached Kp 6- and lasted 3 hours, with a daily Ap as high as 24; at that Kp the aurora may be seen from about 57 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 1951, reached Kp 6+ and lasted 21 hours, with a daily Ap as high as 41; at that Kp the aurora may be seen from about 53 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1953, reached Kp 5+ and lasted 6 hours, with a daily Ap as high as 36; at that Kp the aurora may be seen from about 58 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1953, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 36; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 1974, reached Kp 6- and lasted 27 hours, with a daily Ap as high as 46; at that Kp the aurora may be seen from about 57 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 1975, reached Kp 6 and lasted 9 hours, with a daily Ap as high as 25; at that Kp the aurora may be seen from about 55 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1977, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 28; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 1981, reached Kp 6+ and lasted 54 hours, with a daily Ap as high as 53; at that Kp the aurora may be seen from about 53 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1984, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 20; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1990, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 18; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 1993, 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 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 2011, reached Kp 5 and lasted 3 hours, with a daily Ap as high as 16; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 2014, 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 60 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 2017, reached Kp 6- and lasted 3 hours, with a daily Ap as high as 28; at that Kp the aurora may be seen from about 57 degrees geomagnetic latitude.
A G2 (moderate) geomagnetic storm began April 20, 2018, reached Kp 6 and lasted 15 hours, with a daily Ap as high as 43; at that Kp the aurora may be seen from about 55 degrees geomagnetic latitude.
A G1 (minor) geomagnetic storm began April 20, 2025, 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 April 20, 2026, reached Kp 5 and lasted 6 hours, with a daily Ap as high as 23; at that Kp the aurora may be seen from about 60 degrees geomagnetic latitude.
1 on April 20, oldest first.
A severe storm disaster that cost $1.2 billion in 2024 dollars, on NOAA’s billion-dollar list. It lasted from April 20, 2017 to April 22, 2017.
5 on April 20, oldest first.
A direct lightning hit destroyed 2 huge 161 kV transformers in Tullahoma. Estimate by the power compnay to rebuild them will be 1/2 million dollars.
Swells from Subtropical Storm Ana combined with an outgoing tide caused a small craft to capsize as it attempted to traverse the Jupiter Inlet. Two tourists drowned and two others were rescued.
High surf resulted in rapid rushes of water onto local beaches. One such surge of water swept two people into the ocean. A third person attempted to rescue one of the victims and was struck by a large log that was rolling in the tide. The injuries from this log were fatal.
Dense fog formed across the Laramie valley during the early morning hours. The combination of the very low visibility and icy road surface contributed to a deadly multi-vehicle pileup on Interstate 80 about 18 miles west of Laramie.
Under the influence of a dominant high pressure system over the Atlantic Ocean, there was strong easterly flow along the South Florida east coast. This lead to ongoing rough surf and dangerous rip currents along the Miami-Dade County coast on April 20th.
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.