Earthquakes
1639May 4, 1639 Earthquake in Qazvin, Iran
An earthquake struck Qazvin, Iran. It killed 12,000 people and did severe (about $5 to $25 million) damage.
- When
- May 4, 1639
- Deaths
- 12,000
- Where
- Qazvin, Iran
Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for May 4, 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
An earthquake struck Qazvin, Iran. It killed 12,000 people and did severe (about $5 to $25 million) damage.
Tornadoes
An EF5 tornado touched down in Kiowa County, Kansas and tracked 25.8 miles, 3,000 yards wide at its widest, killing 11 and injuring 63.
Earthquakes
A magnitude 6.4 earthquake struck Cartago, San Jose, Costa Rica. It killed 700 people and did severe (about $5 to $25 million) damage.
Tornadoes
81 tornadoes were recorded on May 4, 2003, in Nebraska, Kansas, Missouri, South Dakota, Oklahoma, Arkansas, Tennessee, Kentucky and more, 4 of them rated violent (F4 or EF4 and above). They killed 38 people.
Tornadoes
An F4 tornado touched down in Travis County, Texas and tracked 7.1 miles, 200 yards wide at its widest, killing 12 and injuring 50. From Grazulis's record of significant tornadoes: Austin, TX.
Tornadoes
An F4 tornado touched down in Madison, Henderson counties, Tennessee and tracked 39 miles, 880 yards wide at its widest, killing 11 and injuring 86.
Tornadoes
An F4 tornado touched down in Crawford, Barton counties, Kansas and tracked 33 miles, 880 yards wide at its widest, killing 4 and injuring 30.
Earthquakes
A magnitude 7.6 earthquake struck Luwuk, Banggai, Peleng,, Sulawesi, Indonesia. It killed 54 people, injured 264, destroyed 23,000 houses and did $30 million in damage. It caused a tsunami.
Tsunamis
A tsunami caused by a magnitude 7.6 earthquake struck Sulawesi, Indonesia, with a maximum water height of 6 meters. It killed 54 people, injured 264, destroyed 23,000 houses and did $30 million in damage.
Tornadoes
An F4 tornado touched down in Tulsa, Wagoner counties, Oklahoma and tracked 14.4 miles, 200 yards wide at its widest, killing 3 and injuring 11. From Grazulis's record of significant tornadoes: E Jenks to Catoosa, OK.
Tornadoes
A destructive tornado, the first 5 rating on the new Enhanced-Fujita Scale and the first 5 classification since May 3, 1999 when an F5 tornado ripped through Moore, Oklahoma occurred on this day.
Tornadoes
An F4 tornado touched down in Wyandotte, Platte, Clay counties, Kansas and tracked 21 miles, 500 yards wide at its widest, killing 2 and injuring 30.
155 on May 4, oldest first.
An unrated tornado touched down in Charleston County, South Carolina and 300 yards wide at its widest, killing 8. From Grazulis's record of significant tornadoes: Stonto/N Charleston, SC.
An F3 tornado touched down in Hood, Johnson counties, Texas and tracked 13 miles, 200 yards wide at its widest, killing 6 and injuring 25. From Grazulis's record of significant tornadoes: NW Fall Creek to W Cleburne.
An F4 tornado touched down in Hamilton County, Texas and tracked 12.6 miles, 400 yards wide at its widest. From Grazulis's record of significant tornadoes: Indian Gap, TX.
An F2 tornado touched down in Pulaski County, Arkansas and 150 yards wide at its widest, killing 2 and injuring 6. From Grazulis's record of significant tornadoes: Marche, AR.
An F2 tornado touched down in Bowie County, Texas and tracked 8 miles, 200 yards wide at its widest, killing 4 and injuring 42. From Grazulis's record of significant tornadoes: Maud/Redwater, TX.
An F2 tornado touched down in Lincoln County, Tennessee, killing 1 and injuring 2. From Grazulis's record of significant tornadoes: E Delina, TN.
An F1 tornado touched down in Dallas County, Texas and 50 yards wide at its widest, killing 1 and injuring 4. From Grazulis's record of significant tornadoes: Wilmer, TX.
An F4 tornado touched down in Travis County, Texas and tracked 7.1 miles, 200 yards wide at its widest, killing 12 and injuring 50. From Grazulis's record of significant tornadoes: Austin, TX.
An F3 tornado touched down in Madison Parish, Louisiana and tracked 10.2 miles, 500 yards wide at its widest, killing 1 and injuring 15. From Grazulis's record of significant tornadoes: E Tallulah, LA.
An F4 tornado touched down in Tulsa, Wagoner counties, Oklahoma and tracked 14.4 miles, 200 yards wide at its widest, killing 3 and injuring 11. From Grazulis's record of significant tornadoes: E Jenks to Catoosa, OK.
An F4 tornado touched down in Nowata, Montgomery counties, Oklahoma and tracked 15 miles, 800 yards wide at its widest, killing 1 and injuring 17. From Grazulis's record of significant tornadoes: OK to Coffeyville, KS.
An F3 tornado touched down in Washington County, Oklahoma and tracked 3.4 miles, 400 yards wide at its widest, injuring 5. From Grazulis's record of significant tornadoes: E Bartlesville, OK.
An F1 tornado touched down in Craig County, Oklahoma and 50 yards wide at its widest, killing 1. From Grazulis's record of significant tornadoes: Blue Jacket, OK.
An F3 tornado touched down in Pottawatomie County, Oklahoma and tracked 9.7 miles, 300 yards wide at its widest, killing 1 and injuring 3. From Grazulis's record of significant tornadoes: E Macomb, OK.
An F4 tornado touched down in Pawnee, Barton counties, Kansas and tracked 34.3 miles, 150 yards wide at its widest, injuring 1.
An F2 tornado touched down in Ochiltree County, Texas and tracked 1.9 miles, 50 yards wide at its widest, killing 1 and injuring 13.
46 tornadoes were recorded on May 4, 1959, in Wisconsin, Kansas, Nebraska, South Dakota, Oklahoma, Minnesota, Iowa, Missouri.
An F4 tornado touched down in Choctaw, Pushmataha counties, Oklahoma and tracked 30.8 miles, 150 yards wide at its widest, injuring 3.
An F4 tornado touched down in Seminole, Pottawatomie counties, Oklahoma and tracked 8 miles, 10 yards wide at its widest.
An F3 tornado touched down in Tarrant County, Texas and tracked 7.4 miles, 500 yards wide at its widest, injuring 12.
An F3 tornado touched down in Pontotoc County, Oklahoma and tracked 18.3 miles, 10 yards wide at its widest, injuring 6.
An F3 tornado touched down in Oklahoma County, Oklahoma and tracked 5.1 miles, 400 yards wide at its widest, injuring 4.
An F3 tornado touched down in Sherman County, Kansas and tracked 7.1 miles, 10 yards wide at its widest.
An F3 tornado touched down in Rogers County, Oklahoma and tracked 0.1 miles, 10 yards wide at its widest.
25 tornadoes were recorded on May 4, 1960, in Texas, Kansas, Oklahoma, Arkansas, 2 of them rated violent (F4 or EF4 and above).
An F3 tornado touched down in Blaine County, Oklahoma and tracked 9.5 miles, 10 yards wide at its widest, killing 1.
An F3 tornado touched down in Pecos County, Texas and tracked 1.1 miles, 10 yards wide at its widest.
At least 10 tornadoes touched down in Oklahoma on this date back in 1961, including a large tornado near Cheyenne that was observed from many surrounding communities. One person was killed, and more than 20 farmsteads were severely damaged or destroyed by a tornado that tracked from just west of Geary, to south of Kingfisher. One farmstead was struck by two tornadoes within 5 minutes. This tornado outbreak occurred exactly one year after an outbreak that produced a dozen tornadoes across Oklahoma on May 4th, 1960.
From the National Weather Service in Norman, Oklahoma.
An F3 tornado touched down in Sheridan County, Kansas and tracked 5.2 miles, 100 yards wide at its widest.
An F4 tornado touched down in Webster County, Iowa and tracked 2 miles, 70 yards wide at its widest, injuring 14.
An F4 tornado touched down in Clay, Jackson, Ray counties, Missouri and tracked 12 miles, 400 yards wide at its widest, injuring 5.
An F4 tornado touched down in Ray, Carroll, Chariton counties, Missouri and tracked 48.6 miles, 880 yards wide at its widest, injuring 1.
An F3 tornado touched down in Bates, Cass counties, Missouri and tracked 29.8 miles, 500 yards wide at its widest, killing 2 and injuring 15.
30 tornadoes were recorded on May 4, 1977, in Kansas, Missouri, Iowa, Nebraska, Minnesota, Indiana, 3 of them rated violent (F4 or EF4 and above). They killed 3 people.
An F3 tornado touched down in Lafayette County, Missouri and tracked 26.2 miles, 100 yards wide at its widest, killing 1 and injuring 5.
An F3 tornado touched down in Pettis County, Missouri and tracked 11.2 miles, 700 yards wide at its widest, injuring 24.
An F3 tornado touched down in Douglas, Johnson counties, Kansas and tracked 31.6 miles, 300 yards wide at its widest, injuring 1.
An F3 tornado touched down in Colfax County, Nebraska and tracked 7.6 miles, 200 yards wide at its widest.
An F3 tornado touched down in Tama County, Iowa and tracked 17.8 miles, 30 yards wide at its widest.
An F3 tornado touched down in Pinellas County, Florida and tracked 1.5 miles, 200 yards wide at its widest, killing 3 and injuring 94.
An F2 tornado touched down in Augusta County, Virginia and tracked 7 miles, 27 yards wide at its widest, killing 2 and injuring 10.
An F3 tornado touched down in Amelia County, Virginia and tracked 8 miles, 500 yards wide at its widest.
An F2 tornado touched down in Butler County, Ohio and tracked 0.2 miles, 150 yards wide at its widest, killing 1 and injuring 5.
An F3 tornado touched down in Franklin, Titus, Red River counties, Texas and tracked 71.5 miles, 50 yards wide at its widest, killing 1 and injuring 22.
An F3 tornado touched down in St. Clair County, Missouri and tracked 3 miles, 200 yards wide at its widest, injuring 1.
An F3 tornado touched down in Sequoyah, Crawford, Adair counties, Oklahoma and tracked 38.2 miles.
An F3 tornado touched down in Columbia County, Arkansas and tracked 9 miles, 100 yards wide at its widest.
This tornado moved directly through the downtown district of De Kalb and across a high school. Numerous homes and businesses were severely damaged or destroyed. The high school suffered severe damage. Sirens sounded 15 minutes prior to arrival of the storm.
43 tornadoes were recorded on May 4, 1999, in Oklahoma, Texas, Arkansas, Missouri, Kansas, Louisiana. They killed 1 people.
Major damage to homes and businesses. Stoneridge Apartment complex lost portions of its roof and walls collapsed. The complex was condemned. This tornado is separate from the Gree County to Rusk County to Gregg County tornado event which occurred at the same time.
Seven homes were destroyed. Two of the homes were swept from their slabs.
Numerous homes and businesses damages. This tornado continued into Rusk County, TX then reentered Gregg County, TX.
Supercells developed in unstable airmass ahead of strong upper low over central plains states. Numerous trees blown over or broken. Nine mobile homes and 1 frame home destroyed. This tornado moved into McCurtain county, OK.
Summary of events for May 4 1999:Following a record tornado outbreak in Oklahoma on May 3-4, a significant severe weather outbreak affected northwest Arkansas on the morning and afternoon of May 4 as a vigorous upper level system continued to move slowly east.
Two frame homes were demolished, several frame homes suffered roof damage, 1 church and 3 businesses suffered roof and frame damage. Many trees were snapped and uprooted. Damage estimates includes timber damage.
A tornado downed trees just north of Highway 82 near the intersection of OO Highway. The tornado skipped across an open field and increased in intensity just before striking and completely destroying a modular home, spreading debris nearly a mile away.
Two mobile homes destroyed and several frame homes suffered roof damage. Numerous trees were snapped and uprooted. Damage includes timber damage.
A supercell developed under favourable atmospheric conditions. A partial roof was removed from a frame home. One mobile home was heavily damaged. Numerous trees were snapped or uprooted. Damage estimates include timber damage.
Numerous trees were blown over or broken. A few out buildings were severely damaged. This tornado moved from Titus county, TX into Red River county, TX and exited into Bowie county TX.
Supercells developed in unstable airmass ahead of strong upper low over central plains states. Damage confined to broken branches off trees and snapped twigs. This tornado moved into Titus county, TX.
Damage path consisted of numerous snapped and fallen small trees. The damage path was in a wooded region away from any population. This tornado moved into Little River county from Bowie county, TX then continued into Sevier county, AR.
Damage path consisted of a few small trees and twigs broken. The tornado rating in the county was only an F0 but the overall intensity was F3 in Bowie County, TX.
May 4, 5, and 6th Episode NarrativeNorthwesterly flow set up over the region. Numerous disturbances moved through the northwest flow and touched off thunderstorms. Some storms became severe and numerous reports of wind, rain, and hail were received.
Numerous thunderstorms formed across southwest Oklahoma the afternoon of the 4th and spread northeastward. Three tornadoes were confirmed, along with many reports of severe winds.
A supercell thunderstorm developed over San Angelo and moved east for four and a half hours over portions of Tom Green, Concho, McCulloch and San Saba counties. This storm produced a total of five tornadoes.
81 tornadoes were recorded on May 4, 2003, in Nebraska, Kansas, Missouri, South Dakota, Oklahoma, Arkansas, Tennessee, Kentucky and more, 4 of them rated violent (F4 or EF4 and above). They killed 38 people.
An F4 tornado touched down in Madison, Henderson counties, Tennessee and tracked 39 miles, 880 yards wide at its widest, killing 11 and injuring 86.
An F4 tornado touched down in Crawford, Barton counties, Kansas and tracked 33 miles, 880 yards wide at its widest, killing 4 and injuring 30.
An F4 tornado touched down in Wyandotte, Platte, Clay counties, Kansas and tracked 21 miles, 500 yards wide at its widest, killing 2 and injuring 30.
Several homes had windows broken or roof damage. Some trees were knocked down.
An F3 tornado touched down in Newton, Lawrence, Greene counties, Missouri and tracked 49 miles, 880 yards wide at its widest, killing 7 and injuring 48.
An F3 tornado touched down in Barton, Cedar, Polk counties, Missouri and tracked 86 miles, 880 yards wide at its widest, killing 5 and injuring 47.
An F3 tornado touched down in Cherokee, Jasper counties, Kansas and tracked 25 miles, 880 yards wide at its widest, killing 5 and injuring 34.
An F3 tornado touched down in Camden County, Missouri and tracked 14 miles, 400 yards wide at its widest, killing 4 and injuring 27.
An F4 tornado touched down in Clay County, Missouri and tracked 5 miles, 200 yards wide at its widest, injuring 13.
This tornado is a continuation of the Newton County tornado. A large tornado laid out a half mile wide path of destruction across southwest, central, and east central Lawrence County.
A large tornado laid out a path of destruction across the entire county. During this time, it took a path through the center of Stockton, which is the most populated community in the county. 350 homes, businesses, and outbuildings were destroyed while 650 received major damage.
The White House granted Governor Phil Bredesen's request for Presential Disaster Declaration for 20 counties in West and Middle Tennessee for damage as a result of tornadoes, flooding and severe thunderstorms which began on Sunday , May 4, 2003.
A long lived cyclic supercell that had a history of producing large and destructive tornadoes spawned another large tornado in rural south central Camden County.
A dry line moved into eastern Kansas and initiated severe thunderstorm development the afternoon of May 4th. Several of the thunderstorms became tornadic in Miami, Leavenworth and Wyandotte counties.
This storm is known to have initiated the unforgettable series of events of 4 May, 2003. This classic supercell rapidly developed over Montgomery County, Kansas, eventually moving into southwestern Crawford County, Kansas where it spawned a very large and destructive tornado.
This tornado is a continuation of the Cherokee County, Kansas tornado. This feature crossed the Kansas-Missouri state line near the community of Smithfield, and then wreaked havoc through the center of Carl Junction.
A dry line moved into eastern Kansas on the afternoon of May 4th. Severe thunderstorms quickly erupted in the mid afternoon hours and marched east northeast into Missouri. Several of the severe thunderstorms became tornadic.
An F3 tornado touched down in Faulkner, Lonoke, White counties, Arkansas and tracked 34.9 miles, 500 yards wide at its widest, injuring 5.
A classic supercell thunderstorm moved out of southern Labette County, Kansas and into southwest Cherokee County, Kansas.
An F3 tornado touched down in Woodruff, White, Cross counties, Arkansas and tracked 43 miles, 300 yards wide at its widest, injuring 4.
An F3 tornado touched down in Montgomery County, Tennessee and tracked 11.5 miles, 1,000 yards wide at its widest, injuring 1.
An F3 tornado touched down in Madison, Henderson counties, Tennessee and tracked 21 miles, 440 yards wide at its widest.
An F-4 tornado tracked over the Kansas-Missouri state line and into west central Barton County. The tornado destroyed several farm houses and outbuildings prior to dissipating one mile north of Liberal. Ten injuries and one fatality can be accounted for from this large tornado.
This tornado is a continuation of the Christian County tornado that entered southwestern Greene County and laid down a path of destruction into the city of Battlefield.
This is a continuation of the Polk County tornado that entered the northwestern portion of Dallas County near the Polk-Hickory-Dallas County lines.
This tornado is a continuation of the Lawrence County tornado that laid a half mile wide path of destruction across the Christian County panhandle. Populated areas between the communities of Billings and Clever were affected that resulted in one fatality and three injuries.
A tornado affected the southeast part of Montgomery County and did damage from Roberts Road, to Fredonia and to Albright Road. 108 homes were damaged. Estimated loss is about 3/4 of a million dollars.
Brief event.
This tornado is a continuation of the Cedar County tornado that produced F-3 damage in the city of Stockton. The tornado remained on the ground across rural sections of northern Polk County. The tornado destroyed 180 homes and outbuildings while damaging 70.
The tornado touched down near Leachville and tracked northeast. Several large tree limbs were blown down.
Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs.
A severe thunderstorm produced a series of tornadoes across Livingston, Crittenden, and Webster Counties. Both tornadoes in Livingston County originated on the Illinois side of the Ohio River.
A strong tornado moved from Lonoke County into White County about 4 miles southeast of El Paso. The tornado moved across Highway 64 where several homes and businesses were destroyed with a number of other buildings suffering significant damage.
A mobile home was destroyed, injuring two persons. A boy received a broken arm, and a girl suffered a broken back. Several barns and garages were blown down, and a garage was pushed off its foundation. One permanent home received minor damage.
A seven mile long path of rural east central Newton County was affected from the initial stages of a large tornado. Three homes and outbuildings were destroyed while five more were damaged causing approximately one half million dollars in monetary loss.
A supercell thunderstorm moved northeast from Tennessee, producing straight-line wind damage from the southeast corner of Graves County to Murray. The storm then spawned a tornado northeast of Murray.
Severe thunderstorms produced dime to nickel size hail in isolated locations from around Poplar Bluff west. The storms then organized into a single tornadic supercell just northeast of Poplar Bluff.
A strong tornado moved out of White County and into Woodruff County about 4.8 miles west-southwest of Gregory. The tornado continued to strengthen as it moved northeastward before reaching Patterson and McCrory.
The tornado moved from Faulkner County into the extreme northwest corner of Lonoke County, about 7.2 miles northwest of Cabot. The tornado moved across Highway 5 where a number of trees and power poles were blown down.
A strong tornado touched down in the southern part of Faulkner County, about 3 miles southwest of Saltillo. The tornado caused quite a bit of tree and power pole damage.
The tornado was a brief touch down that was observed by a storm chaser and a local volunteer fire fighter.
An EF5 tornado touched down in Kiowa County, Kansas and tracked 25.8 miles, 3,000 yards wide at its widest, killing 11 and injuring 63.
A destructive tornado, the first 5 rating on the new Enhanced-Fujita Scale and the first 5 classification since May 3, 1999 when an F5 tornado ripped through Moore, Oklahoma occurred on this day.
In the evening hours of Friday, May 4, 2007, amid a severe weather outbreak across the central United States, a massive and violent tornado moved through Kiowa County in southwest Kansas, before impacting the city of Greensburg and causing widespread devastation. 3 km) through the area, killing 10 to 13 people and injuring 63.
From Wikipedia, CC BY-SA 4.0.
29 tornadoes were recorded on May 4, 2007, in Illinois, Oklahoma, South Dakota, Colorado, Kansas, 1 of them rated violent (F4 or EF4 and above). They killed 13 people.
An EF3 tornado touched down in Kiowa, Pratt, Edwards counties, Kansas and tracked 18.22 miles, 2,110 yards wide at its widest, killing 1 and injuring 2.
An EF3 tornado touched down in Stafford County, Kansas and tracked 17.4 miles, 1,515 yards wide at its widest, killing 1.
An EF3 tornado touched down in Kiowa, Edwards counties, Kansas and tracked 23.5 miles, 3,872 yards wide at its widest, injuring 1.
A powerful but slow moving storm system caused several severe thunderstorm outbreaks from very late in the day on May 4th through late in the day on May 6th.
From May 4–6, 2007, a major and damaging tornado outbreak significantly affected portions of the Central United States, with several strong to violent long-track tornadoes occurring across much of the impacted regions. The Storm Prediction Center (SPC) issued a moderate risk of severe thunderstorms for May 4 over portions of Central Nebraska, Western Kansas, Western Oklahoma, Eastern Colorado and portions of the Texas Panhandle.
From Wikipedia, CC BY-SA 4.0.
A series of weak surface low pressure systems draped across the the deep south including the central Florida peninsula combined with an approaching cold front over a very saturated airmass triggered a cluster of storms over Nassau county that produced a strong outflow that…
The month of May in 2019 was exceptionally busy with tornadoes. 105 tornadoes were recorded that year, setting a record for the highest total for any month in Oklahoma. With several periods of severe weather through the summer and fall months, 2019 also saw the highest total for tornadoes in a year, 147. Despite the high number of tornadoes that year, no EF4 or EF5 tornadoes were recorded.
From the National Weather Service in Norman, Oklahoma.
Two small but intense bowing thunderstorm clusters moved rapidly east/southeastward across southeast Missouri during the late afternoon hours.
A moist and unstable airmass in place across the Mid-South helped to fuel severe storms ahead of an advancing cold front and deep upper-level trough swinging into the Central Plains.
39 tornadoes were recorded on May 4, 2021, in Arkansas, Missouri, Tennessee, Kentucky, Mississippi, Alabama, Georgia, Louisiana and more.
An outbreak of severe thunderstorms occurred on May 4th. An initial round of supercell thunderstorms that morning brought several brief tornadoes to the area along with a few instances of damaging winds.
Clusters of storms, followed by a bowing line of thunderstorms, organized and accelerated east-northeastward during the overnight and wee morning hours. Several tornadoes accompanied mesovortices along the bowing line of storms.
A QLCS (Quasi-linear Convective System) moved across Middle Tennessee during the early morning hours of May 4, 2021. This line of thunderstorms spawned a total of 14 EF-0 tornadoes throughout Middle Tennessee, at least 4 of which were captured on video by local residents.
An EF3 tornado touched down in Foard, Wilbarger counties, Texas and tracked 23.1 miles, 600 yards wide at its widest.
A strong storm system slowly moved from the central Rockies into the Southern and Central Plains on the 4th and 5th.
Several rounds of storms occurred on the 4th as a large trough approached the region. Initially several storms developed across northwest Oklahoma with large hail, with new storm development then occurring along and south of a warm front in central Oklahoma during the afternoon.
Storms moved in from the Texas panhandle during the evening of the 4th, bringing tornadoes to western sections of north Texas.
A stalled stationary front in southern Ohio sparked showers and thunderstorms.
A cold front moved across the Permian Basin before stalling during the afternoon. Several intense supercells formed along and behind this front, producing very large hail. Another area of thunderstorms developed near Fort Stockton.
4 on May 4, oldest first.
Hurricane Iris reached its peak of 150 kt (175 mph) with a central pressure of 910 mb, a category 5 storm.
An unnamed storm reached its peak of 120 kt (140 mph), a category 4 storm.
Hurricane Kujira reached its peak of 115 kt (130 mph) with a central pressure of 937 mb, a category 4 storm.
During the first week of May Typhoon Noul passed across Yap State in Micronesia.
15 on May 4, oldest first.
Flooding on creeks and streams. One death occurred when an individual got too close to the water and was swept away.
Thunderstorms produced a large area of 2 to 6 inch rainfall over central, south central, and southwest Missouri. The hardest hit areas were along the Kansas state line from Nevada to Joplin where some damage to roads occurred.
A front was stretched out east to west near the southern border of West Virginia. A strong mid level disturbance lifted northeast and enhanced the rain after 0100E on Monday the 4th before lifting out around noon.
A flood of historic proportions began in Eagle along the Yukon River around 2 am on the morning of the 4th.
Record rainfall caused river flooding in southwest Arkansas. The Ouachita River and tributaries experienced the highest stages since 1990 and caused Lake Greeson to go over the uncontrolled spillway for only the second time in the history of the reservoir.
The flood of 2011 had its birth around the end of March when heavy rainfall of 2 to 5 inches fell across Arkansas, Southeast Missouri, and the Ohio River Valley.
Convection dropped from northwestern Ohio during the late afternoon and reached into southeast Ohio during the evening hours of the 4th. This was south of an east to west cold front in northern Ohio. That front was sinking slowly south. Surface dew points were in the mid 60s.
A deep fetch of Gulf moisture overspread the South Plains this afternoon in advance of a slow-moving trough. Numerous thunderstorms erupted by late afternoon across the western South Plains and spread slowly northeast through the overnight hours under weak upper level winds.
A slow moving cold front produced areas of thunderstorms with large hail up to the size of quarters and frequent lightning. One person was killed and another injured by lightning in Muscatine County. Heavy rain also was common.
An upper level low pressure system lifted northwest out of southern California on the 4th, setting off widespread showers and thunderstorms across New Mexico.
An energetic storm system moved from the Great Lakes across the St. Lawrence Valley into Ontario/Quebec during the afternoon and evening hours of May 4th. Instability was marginal for thunderstorm development during the evening hours with thunderstorms ahead of a cold front.
Strong to severe thunderstorms developed over northeastern Oklahoma during the morning of the 5th, as warm, moist, and unstable air was drawn northward over a warm front that stretched across the area.
A stalled front from the storm a system on May 2-3 moved northward back into the Ozarks as a warm front as a strong upper level low over southern Colorado moved eastward into the southern Plains.
A lingering upper trough provided several days of thunderstorm activity across the region, with a dryline providing focus for development each day from Thursday May 4 through Monday May 8. Several of these storms were severe with damaging winds and large hail.
A shortwave trough and a cold front led to the development of scattered to numerous thunderstorms May 4 and 5. Heavy rain causing flash flooding was the main impact during these days. Unfortunately one flash flood fatality occurred in Johnson County.
11 on May 4, oldest first.
Ping-pong sized hail produced a ten mile wide swath of significant crop damage from the Manatee county line north to the Wimauma/Balm area, mainly east of U.S.
One of the most destructive hailstorms on record in far western Kentucky began near the Mississippi River just south of Cairo, Illinois. The storm moved east across Ballard County, producing quarter-size hail. One-inch diameter hail was reported on U.S.
Widespread severe thunderstorms engulfed most of south-central Nebraska this Sunday morning and afternoon. There were several reports of hail and a few reports of strong winds. The strongest winds were reported north of Pauline and gusted to 80 mph.
Ping-pong to golfball size hail fell from Seminole along U.S. Highway 180 to just east of Seminole.
An upper level disturbance combined with a weakening cold front to initiate showers and thunderstorms across southern New England. These storms produced damaging winds, downing trees, wires, and power poles throughout the area.
For the fourth consecutive day, severe thunderstorms affected parts of South Central Nebraska, this time targeting northwest portions of the 24-county area with a fairly significant Friday evening hail event primarily impacting Valley, Greeley, Howard and Sherman Counties.
A line of strong to marginally severe thunderstorms moved across Middle Tennessee during the afternoon hours on May 4.
A moderately unstable warm southerly flow of moisture allowed thunderstorms to develop that moved rather quickly to the north at 25 mph. A few of the thunderstorms downdrafts resulted in power lines and trees down in the Spokane Area.
A strong low pressure system tracked through northern Lower Michigan, swinging a strong cold front through southeast Michigan early in the afternoon.
Several multi-cellular clusters moved across the area during the late afternoon and evening. Multiple clusters produced wind damage as they moved through the area in a moist and unstable environment.
Scattered severe thunderstorms well in advance of a cold front produced damaging winds across portions of central and eastern Virginia.
1 on May 4, oldest first.
A cold season type of trough and associated surface features moved through Utah in early May. Ahead of the system, strong synoptic wind gusts occurred throughout portions of the state. While wind gusts decreased following a cold frontal passage, precipitation increased.
1 on May 4, oldest first.
Strong high pressure over the Desert Southwest led to temperatures climb well above normal as afternoon high temperatures topped out above 100 degrees. On the 6th, Phoenix reached 106 degrees, tying the daily record high for the date.
1 on May 4, oldest first.
The American River was unusually cold and fast moving from a deep Sierra snow pack melting, which contributed to a man drowning.
30 on May 4, oldest first.
The Unnamed Fire started on May 4, 1985, in Minnesota, and burned 5,892 acres.
The Hot Air/Robison Fire started on May 4, 1986, in Arizona, and burned 3,015 acres.
The Dof 345 Fire started on May 4, 1989, in Florida, and burned 1,052 acres.
The Sebastain Fire was discovered on May 4, 1992, in California, and burned 1,000 acres; the cause was recorded as natural.
The Unnamed Fire was discovered on May 4, 1994, in Sarasota County, Florida, and burned 600 acres; the cause was recorded as human.
The Unnamed Fire was discovered on May 4, 1996, in Clay County, Minnesota, and burned 1,155 acres; the cause was recorded as arson/incendiarism.
The Unnamed Fire was discovered on May 4, 1996, in California, and burned 1,000 acres; the cause was recorded as human.
The hot and dry weather throughout the spring culminated in a series of dastivating wildfires that sorched nearly 90,000 acres of forest and ravaged Los Alamos and the adjacent Los Alamos National Labratory (LANL).
The Cerro Grande Fire was a prescribed-burn forest fire in Los Alamos, New Mexico, United States of America, that occurred in May of 2000. The fire started as a controlled burn on May 4, 2000, and became uncontrolled owing to high winds and drought conditions.
From Wikipedia, CC BY-SA 4.0.
The Long Bay Fire was discovered on May 4, 2000, in Florida, and burned 6,679 acres; the cause was recorded as arson/incendiarism.
The Animas Fire was discovered on May 4, 2001, in Hidalgo County, New Mexico, and burned 11,000 acres; the cause was recorded as human.
The Little Fire was discovered on May 4, 2002, in Arizona, and burned 8,800 acres; the cause was recorded as equipment and vehicle use.
The Little Mo Fire started on May 4, 2002, in North Dakota, and burned 1,335 acres.
The Canadian Fd Mutual Aid Fire was discovered on May 4, 2006, in Hemphill County, Texas, and burned 850 acres; the cause was recorded as natural.
The Irishman Fire was discovered on May 4, 2009, in Hidalgo County, New Mexico, and burned 4,888 acres; the cause was recorded as recreation and ceremony.
Unseasonably hot and dry conditions combined with strong and gusty southwest winds created an environment ripe for wildfires across much of Oklahoma. At least two large fires occurred the first week in May.
The Guthrie Fire was reported on May 4, 2014, in Logan County, Oklahoma, and burned 3,250 acres; the cause was recorded as human.
The 270 Fire was reported on May 4, 2014, in Dewey County, Oklahoma, and burned 2,657 acres; the cause was recorded as human.
The International Fire was reported on May 4, 2017, in Volusia County, Florida, and burned 1,600 acres.
The Storm Trooper Wf Fire was reported on May 4, 2018, in Okaloosa County, Florida, and burned 1,100 acres; the cause was recorded as human.
The 5 Mile Swamp Fire was reported on May 4, 2020, in Santa Rosa County, Florida, and burned 2,215 acres; the cause was recorded as human.
The L-67 Fire was reported on May 4, 2020, in Miami-Dade County, Florida, and burned 1,792 acres; the cause was recorded as human.
The L39 Fire was reported on May 4, 2022, in Palm Beach County, Florida, and burned 12,050 acres; the cause was recorded as natural.
The 2 Bravo Fire was reported on May 4, 2022, in Broward County, Florida, and burned 9,150 acres; the cause was recorded as natural.
The 2Alpha Fire was reported on May 4, 2022, in Palm Beach County, Florida, and burned 5,600 acres; the cause was recorded as natural.
The May Fire was reported on May 4, 2022, in Lea County, New Mexico, and burned 1,833 acres; the cause was recorded as human.
The Big Tank Fire was reported on May 4, 2023, in San Miguel County, New Mexico, and burned 1,181 acres; the cause was recorded as natural.
The Blind Fire was reported on May 4, 2025, in Coconino County, Arizona, and burned 6,329 acres; the cause was recorded as natural.
The Pouch Point Fire was reported on May 4, 2025, in Mountrail County, North Dakota, and burned 2,000 acres.
The pouch point Fire was reported on May 4, 2025, in Mountrail County, North Dakota, and burned 1,800 acres; the cause was recorded as human.
21 on May 4, oldest first.
An earthquake struck Praia, Azores.
An earthquake struck Qazvin, Iran. It killed 12,000 people and did severe (about $5 to $25 million) damage.
A magnitude 7.6 earthquake struck Guerrero, Oaxaca, Puebla, Veracruz, Mexico. It did severe (about $5 to $25 million) damage. It caused a tsunami.
An earthquake struck Vlore, Kanina, Narta, Albania.
A magnitude 6.1 earthquake struck Keban,maden, Turkey.
A magnitude 7.7 earthquake struck New Britain, Papua New Guinea.
A magnitude 6.4 earthquake struck Cartago, San Jose, Costa Rica. It killed 700 people and did severe (about $5 to $25 million) damage.
A magnitude 7.6 earthquake struck Near Kamchatka, Russia.
A magnitude 7 earthquake struck Vallenar, Chile. It caused a tsunami.
A magnitude 6 earthquake struck Xinzhu, Taiwan. It injured 37 and destroyed 28 houses.
A magnitude 8.2 earthquake struck Near East Coast of Kamchatka, Russia. It killed 1 person and injured 13. It caused a tsunami.
25. The epicenter was near the Kamchatka Peninsula, Russian SFSR, USSR.
From Wikipedia, CC BY-SA 4.0.
A magnitude 5.2 earthquake struck Falcon, Carabobo, Caracas, Venezuela.
A magnitude 6.2 earthquake struck Changuinola, Almirante, Bocas del Toro, Panama. It injured 36.
A magnitude 7.6 earthquake struck Luwuk, Banggai, Peleng,, Sulawesi, Indonesia. It killed 54 people, injured 264, destroyed 23,000 houses and did $30 million in damage. It caused a tsunami.
5 earthquake struck off the coast of Banggai Islands Regency, Central Sulawesi, Indonesia, which was followed by a damaging local tsunami. The earthquake and tsunami killed at least 54 people and injured 270 others, with most of the damage and casualties occurring in the Banggai Islands.
From Wikipedia, CC BY-SA 4.0.
A magnitude 5.8 earthquake struck Yopurga, S. Xinjiang, China. It killed 1 person, injured 3, destroyed 1,600 houses and did severe (about $5 to $25 million) damage.
A magnitude 5.4 earthquake struck Delingha, Qinghai Province, China. It did severe (about $5 to $25 million) damage.
A magnitude 4.5 earthquake struck Boquete, Panama.
A magnitude 6.9 earthquake struck Puna District, Hawaiian Islands, United States. With the tsunami it caused, it injured 1, destroyed 716 houses and did $370 million in damage.
m. local time.
From Wikipedia, CC BY-SA 4.0.
9 on May 4, oldest first.
A tsunami caused by a magnitude 7.6 earthquake struck S. Mexico, with a maximum water height of 4 meters. It did severe (about $5 to $25 million) damage.
A tsunami struck Lampung Bay, Indonesia, with a maximum water height of 1.5 meters.
A tsunami with a source recorded as volcano struck Hawaii, United States.
A tsunami struck Mexico.
A tsunami caused by a magnitude 8.2 earthquake struck Kamchatka, Russia, with a maximum water height of 0.2 meters.
A tsunami struck Easter Island Region, Chile.
A tsunami caused by a magnitude 7.6 earthquake struck Sulawesi, Indonesia, with a maximum water height of 6 meters. It killed 54 people, injured 264, destroyed 23,000 houses and did $30 million in damage.
A tsunami with a source recorded as meteorological struck Yellow Sea, South Korea, with a maximum water height of 1.3 meters. It killed 9 people and injured 15.
A tsunami with a source recorded as volcano and earthquake struck Hawaii, United States, with a maximum water height of 0.4 meters. It injured 1, destroyed 716 houses and did $370 million in damage.
2 on May 4, oldest first.
A G3 (strong) geomagnetic storm began May 4, 1938, reached Kp 7 and lasted 18 hours, with a daily Ap as high as 44; at that Kp the aurora may be seen from about 50 degrees geomagnetic latitude.
A G3 (strong) geomagnetic storm began May 4, 1989, reached Kp 7- and lasted 12 hours, with a daily Ap as high as 44; at that Kp the aurora may be seen from about 52 degrees geomagnetic latitude.
4 on May 4, oldest first.
A 28 year old Massachuetts man swimming with some friends near the jetty at 28th Street, drowned after getting caught in a rip current.
A 74 year old man drowned while fishing at South Beach in Point Reyes National Seashore Saturday May 4th. The man was digging for sand crabs on the beach with his back to the water when he was presumably knocked into the water by a wave.
A man died in a rip current.
The combination of a small northerly swell and choppy, wind-driven seas resulted in life-threatening rip currents across most of the north and east-facing beaches of the islands on the 4th of May.
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.