21 May


US Weather events

US Weather events

1980 44 yrs ago
The temperature at Williston ND reached 102 degrees to set a record for May, and the next day the mercury hit 106 degrees. (The Weather Channel)
1987 37 yrs ago
Severe thunderstorms, developing along a sharp cold front crossing the central U.S., produced 60 mph winds and golf ball size hail at Sedalia, MO, and drenched Hagerstown, IN, with six inches of rain in one hour. Temperatures soared into the 90s ahead of the cold front. Paducah, KY, hit 94 degrees for the second day in a row. Light snow blanketed Montana, with three inches reported at Butte. (The National Weather Summary)
1988 36 yrs ago
Severe thunderstorms swept across southern Louisiana during the morning hours spawning six tornadoes, and producing wind gusts to 88 mph at Jennings. Thunderstorms also produced five inches of rain in two hours at Lake Charles, causing local flooding. (The National Weather Summary)
1989 35 yrs ago
Thunderstorms moving southeastward across the Central Plains Region into Oklahoma and Arkansas produced severe weather through the day and night. Thunderstorms spawned just four tornadoes, but there were 243 reports of large hail and damaging winds. Baseball size hail was reported at Augusta, KS, and thunderstorm winds gusted to 98 mph at Johnson, KS. (The National Weather Summary)
1990 34 yrs ago
Thunderstorms produced severe weather across the southeastern U.S. for the second day in a row. Severe thunderstorms spawned five tornadoes, including one which injured a person at Richmond KY. There were eighty-seven reports of large hail or damaging winds, with hail three inches in diameter reported at Austin TX. Thunderstorms produced up to five inches of rain in Macon County GA, and heavy rains left nearly eight feet of water over roads near Stepstone KY. (The National Weather Summary)
Data source: http://www.weatherforyou.com/


World records

World records


-- no data for this day --


F5 tornadoes

F5 tornadoes

1918 106 yrs ago
Crawford–Greene County, Iowa 2018 fatalities
At least two farms were swept away, and house foundations were left bare. Mattresses from the homes were transported 2 mi (3.2 km).
Rated F5/EF5, or mentioned as a possible F5/EF5 by tornado expert Thomas P. Grazulis
1918 106 yrs ago
Boone–Story County, Iowa 2015 fatalities
A large tornado completely swept away two entire farms. Mentioned as a possible F5 by Grazulis.
Rated F5/EF5, or mentioned as a possible F5/EF5 by tornado expert Thomas P. Grazulis
1949 75 yrs ago
Palestine, Illinois 2020 fatalities
A restaurant was leveled, and cars in the parking lot were thrown up to 300 yd (900 ft) away from where they originated.
Listed as an F5/EF5 on the 2000 NCDC tornado climatology memo
1957 67 yrs ago
Fremont, Missouri 2017 fatalities
May 1957 Central Plains tornado outbreak – Most of Fremont was destroyed, with many structures swept away. Possible F5 damage occurred to schools, homes, and businesses near the railroad tracks, but could not be verified due to poor quality of construction.
Rated F5/EF5, or mentioned as a possible F5/EF5 by tornado expert Thomas P. Grazulis


Deadly earthquakes

Deadly earthquakes

1932-05-21 10.10 UTC 92 yrs ago
Nicaragua (map) , 35 km deep Magnitude: 6.9 UK
Total deaths resulting from an earthquake (Utsu catalog)10

1950-05-21 18.37 UTC 74 yrs ago
Peru (map) Magnitude: 6.0 UK
Total deaths resulting from an earthquake (Utsu catalog)120

1984-05-21 15.37 UTC 40 yrs ago
China (map) , 43.8 km deep Magnitude: 6.0
Total deaths resulting from an earthquake (Utsu catalog)13

1995-05-21 06.13 UTC 29 yrs ago
Indonesia (map) , 26.4 km deep Magnitude: 5.2
Deaths resulting from earthquake shaking1
Total fatalities resulting from earthquake shaking and secondary effects1
Total deaths resulting from an earthquake (Utsu catalog)1

1997-05-21 22.51 UTC 27 yrs ago
India (map) , 36 km deep Magnitude: 5.8
Deaths resulting from earthquake shaking38
Total fatalities resulting from earthquake shaking and secondary effects38
Total deaths resulting from an earthquake (Utsu catalog)38
Total deaths resulting from an earthquake (Emergency Events Database)43

1997-05-21 23.50 UTC 27 yrs ago
Spain (map) , 17.1 km deep Magnitude: 5.3
Deaths resulting from earthquake shaking0
Total fatalities resulting from earthquake shaking and secondary effects1

2003-05-21 18.44 UTC 21 yrs ago
Algeria (map) , 12 km deep Magnitude: 6.8
Secondary effectstsunami, landslide, liquefaction
Deaths resulting from earthquake shaking2266
Total fatalities resulting from earthquake shaking and secondary effects2266
Total deaths resulting from an earthquake (Emergency Events Database)2266





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