August 21 in Weather History

216 events on record, 1042 to 2026

Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for August 21, in any year, each linked to its full record.

← August 20TodayAugust 22 →

August 21 on the map

Every event with a place, colored by kind. Tap one to open its record.

  • Tornadoes
  • Hurricanes and tropical storms
  • Floods
  • Severe storms
  • Heat and drought
  • Wildfires
  • Earthquakes
  • Volcanoes
  • Tsunamis
  • Other weather

The most significant

By deaths, damage and strength together, across every archive.

Tornadoes

1883F5 tornado, Dodge, Olmsted, Wabasha counties, Minnesota

An F5 tornado touched down in Dodge, Olmsted, Wabasha counties, Minnesota and tracked 43.2 miles, 1,500 yards wide at its widest, killing 37 and injuring 200. From Grazulis's record of significant tornadoes: Rochester, MN.

Rating
F5
Deaths
37
Injuries
200
Path
43.2 mi
Width
1,500 yd

The full record

Hurricanes and tropical storms

2020Hurricane Laura makes landfall near Saint John’s, Saint John Parish, Antigua and Barbuda

Hurricane Laura crossed the coast near Saint John’s, Saint John Parish, Antigua and Barbuda as a tropical storm, 40 kt, central pressure 1007 mb. It killed 47 people in all, by the National Hurricane Center’s count. S. state of Louisiana, as measured by maximum sustained winds.

Wind at landfall
40 kt
Pressure
1007 mb
Peak wind
130 kt
Deaths
47
Damage
$19 billion

From Wikipedia, CC BY-SA 4.0.

The full record

Hurricanes and tropical storms

2007Hurricane Dean makes landfall near Chetumal, Quintana Roo, Mexico

Hurricane Dean crossed the coast near Chetumal, Quintana Roo, Mexico as a category 5 hurricane, 150 kt (175 mph), central pressure 905 mb. Hurricane Dean was the most powerful and destructive tropical cyclone of the 2007 Atlantic hurricane season. It ties with Hurricane Mitch for the tenth most intense Atlantic hurricane by atmospheric pressure.

Wind at landfall
150 kt
Pressure
905 mb
Peak wind
150 kt

From Wikipedia, CC BY-SA 4.0.

The full record

Hurricanes and tropical storms

2021Hurricane Grace makes landfall near Papantla de Olarte, Veracruz, Mexico

Hurricane Grace crossed the coast near Papantla de Olarte, Veracruz, Mexico as a category 3 hurricane, 105 kt (120 mph), central pressure 967 mb. It killed 16 people in all, by the National Hurricane Center’s count. Hurricane Grace was the strongest tropical cyclone to make landfall in the Mexican state of Veracruz. Grace impacted much of the Leeward Islands and Greater Antilles as a tropical storm, before causing more substantial impacts in the Yucatán Peninsula and Veracruz at hurricane status.

Wind at landfall
105 kt
Pressure
967 mb
Peak wind
105 kt
Deaths
16

From Wikipedia, CC BY-SA 4.0.

The full record

Tornadoes

1914F3 tornado, Luzerne County, Pennsylvania

An F3 tornado touched down in Luzerne County, Pennsylvania and tracked 3.5 miles, 100 yards wide at its widest, killing 7 and injuring 75. From Grazulis's record of significant tornadoes: Wilkes-Barre, PA.

Rating
F3
Deaths
7
Injuries
75
Path
3.5 mi
Width
100 yd

The full record

Hurricanes and tropical storms

2011Hurricane Irene makes landfall

Hurricane Irene crossed the coast as a tropical storm, 60 kt, central pressure 993 mb. It killed 56 people in all. Hurricane Irene was a large and destructive tropical cyclone which affected much of the Caribbean and East Coast of the United States during late August 2011. The ninth named storm, first hurricane, and first major hurricane of the 2011 Atlantic hurricane season, Irene originated from a well-defined Atlantic tropical wave that began showing signs of organization east of the Lesser Antilles.

Wind at landfall
60 kt
Pressure
993 mb
Peak wind
105 kt
Deaths
56

From Wikipedia, CC BY-SA 4.0.

The full record

By kind

Tornadoes

39 on August 21, oldest first.

1883F3 tornado, Olmsted County, Minnesota

An F3 tornado touched down in Olmsted County, Minnesota and tracked 2.9 miles, killing 2 and injuring 10. From Grazulis's record of significant tornadoes: Pleasant Grove/S Rochester, MN.

Rating
F3
Deaths
2
Injuries
10
Path
2.9 mi

The full record

1883F3 tornado, Winona County, Minnesota

An F3 tornado touched down in Winona County, Minnesota and tracked 10.8 miles, killing 1 and injuring 19. From Grazulis's record of significant tornadoes: N St. Charles to N Lewiston, MN.

Rating
F3
Deaths
1
Injuries
19
Path
10.8 mi

The full record

1888F2 tornado, Kent County, Maryland

An F2 tornado touched down in Kent County, Maryland and tracked 5 miles, 200 yards wide at its widest, killing 11 and injuring 40. From Grazulis's record of significant tornadoes: Still Pond, MD.

Rating
F2
Deaths
11
Injuries
40
Path
5 mi
Width
200 yd

The full record

1888F2 tornado, New Castle County, Delaware

An F2 tornado touched down in New Castle County, Delaware and tracked 5.2 miles, 200 yards wide at its widest, killing 1 and injuring 22. From Grazulis's record of significant tornadoes: SW Wilmington to S Wilmington, DE.

Rating
F2
Deaths
1
Injuries
22
Path
5.2 mi
Width
200 yd

The full record

1914F3 tornado, Luzerne County, Pennsylvania

An F3 tornado touched down in Luzerne County, Pennsylvania and tracked 3.5 miles, 100 yards wide at its widest, killing 7 and injuring 75. From Grazulis's record of significant tornadoes: Wilkes-Barre, PA.

Rating
F3
Deaths
7
Injuries
75
Path
3.5 mi
Width
100 yd

The full record

19181918 Tyler tornado

The 1918 Tyler tornado was a deadly and destructive tornado that devastated the town of Tyler, Minnesota on Wednesday, August 21, 1918. The F4-estimated tornado hit the town at approximately 9:20 pm, killing 36 people and injuring over 100 others.

Where
United States
Country
United States

From Wikipedia, CC BY-SA 4.0.

The full record

1993Tornado in New Jersey, August 21, 1993

Eyewitnesses indicated that a tornado touched down just northwest of Hammonton Lake which is oriented east-west in a heavily wooded area. The tornado moved east-southeast across the lake, becoming a waterspout.

Damage
$500,000
Strongest
F2
Events
1

The full record

1994Tornadoes and Damaging Winds in New York, August 21, 1994

An isolated thunderstorm spawned a weak tornado in the City of Geneva near Packwood Road and Route 14. The initial touchdown occurred on the west side of Rte. 14 where trees were downed. As the storm crossed Route 14 it destroyed empty grain elevators.

Injuries
1
Damage
$1.5 million
Strongest
F1
Events
5

The full record

2003Tornado and Hail in Michigan, August 21, 2003

A F2 tornado struck eastern Ingham county. The tornado touched down just east of the intersection of Columbia and Kendrick Roads at 7:55 p.m. EST. It moved east and intensified. The tornado began a turn to the northeast as it approached Haywood Road just north of Columbia.

Injuries
2
Damage
$935,000
Strongest
F2
Events
8

The full record

2011Tornadoes and Hail in New York, August 21, 2011

A cold front crossed the region bringing thunderstorms to the northern Finger Lakes region during the afternoon hours. Thunderstorm winds, gusting to 65 mph, downed trees and powers lines in Cato and Port Byron. Hail up to an inch-and-a-quarter diameter was reported in Meridian.

Damage
$310,000
Strongest
EF2
Events
5

The full record

2021Tornadoes in Mississippi, August 21, 2021

A very hot, humid, and unstable airmass was in place across the Mid-South on August 21, 2021. A weak upper-level disturbance moving through northwest flow aloft provided enough lift to generate isolated thunderstorms across extreme Northeast Mississippi.

Damage
$255,000
Strongest
EF1
Events
2

The full record

Hurricanes and tropical storms

15 on August 21, oldest first.

1950Hurricane Charlie

The 1950 Atlantic hurricane season was the first year in the Atlantic hurricane database (HURDAT) that storms were given names in the Atlantic basin. Names were taken from the Joint Army/Navy Phonetic Alphabet, with the first named storm being designated "Able", the second "Baker", and so on.

Ended
September 5, 1950

From Wikipedia, CC BY-SA 4.0.

The full record

1950Hurricane Able makes landfall near Halifax, Nova Scotia, Canada

Hurricane Able crossed the coast near Halifax, Nova Scotia, Canada as a category 1 hurricane, 65 kt (75 mph). The 1950 Atlantic hurricane season was the first year in the Atlantic hurricane database (HURDAT) that storms were given names in the Atlantic basin. Names were taken from the Joint Army/Navy Phonetic Alphabet, with the first named storm being designated "Able", the second "Baker", and so on.

Wind at landfall
65 kt
Peak wind
110 kt

From Wikipedia, CC BY-SA 4.0.

The full record

2007Hurricane Dean makes landfall near Chetumal, Quintana Roo, Mexico

Hurricane Dean crossed the coast near Chetumal, Quintana Roo, Mexico as a category 5 hurricane, 150 kt (175 mph), central pressure 905 mb. Hurricane Dean was the most powerful and destructive tropical cyclone of the 2007 Atlantic hurricane season. It ties with Hurricane Mitch for the tenth most intense Atlantic hurricane by atmospheric pressure.

Wind at landfall
150 kt
Pressure
905 mb
Peak wind
150 kt

From Wikipedia, CC BY-SA 4.0.

The full record

2008Tropical Storm in Georgia, August 21 to 27, 2008

Tropical Storm Fay will be remembered from the catastrophic rainfall that it brought to much of Florida as well as being one of the longer lived tropical systems to affect the U.S. Tropical Storm Fay formed from a tropical wave on August 15th along the east coast of Hispaniola.

Damage
$1.9 million
Events
97

The full record

2011Hurricane Irene makes landfall

Hurricane Irene crossed the coast as a tropical storm, 60 kt, central pressure 993 mb. It killed 56 people in all. Hurricane Irene was a large and destructive tropical cyclone which affected much of the Caribbean and East Coast of the United States during late August 2011. The ninth named storm, first hurricane, and first major hurricane of the 2011 Atlantic hurricane season, Irene originated from a well-defined Atlantic tropical wave that began showing signs of organization east of the Lesser Antilles.

Wind at landfall
60 kt
Pressure
993 mb
Peak wind
105 kt
Deaths
56

From Wikipedia, CC BY-SA 4.0.

The full record

2021Hurricane Grace makes landfall near Papantla de Olarte, Veracruz, Mexico

Hurricane Grace crossed the coast near Papantla de Olarte, Veracruz, Mexico as a category 3 hurricane, 105 kt (120 mph), central pressure 967 mb. It killed 16 people in all, by the National Hurricane Center’s count. Hurricane Grace was the strongest tropical cyclone to make landfall in the Mexican state of Veracruz. Grace impacted much of the Leeward Islands and Greater Antilles as a tropical storm, before causing more substantial impacts in the Yucatán Peninsula and Veracruz at hurricane status.

Wind at landfall
105 kt
Pressure
967 mb
Peak wind
105 kt
Deaths
16

From Wikipedia, CC BY-SA 4.0.

The full record

Floods

28 on August 21, oldest first.

1997Flash Flood and Hail in Kansas, August 21 to 22, 1997

After dropping some hail across a part of north central Kansas, severe thunderstorms dumped in excess of three inches of rain in southern Rooks county. This caused the upper reaches of Paradise Creek to overflow and cover a part of U. S. Highway 183 for a time.

Damage
$365,000
Strongest
1.75 in hail
Events
7

The full record

2001Heavy Rain in Washington, August 21 to 23, 2001

Record rainfall amounts were set in several locations throughout western Washington on the 22nd. Nearly a months worth of rain (for aug ~ 1 inch) fell over most of the area with 2 to 5 inches common along the coast and in the mountains.

Deaths
1
Events
14

The full record

2007Flash Flooding in Iowa, August 21, 2007

A low pressure system moved over northeast Iowa during the late evening hours of August 21. Thunderstorms developed along and ahead of this system, producing rainfall rates of an inch per hour. This caused flooding of roadways across parts of northeast Iowa.

Damage
$281,000
Events
5

The full record

2010Flash Flood in Georgia, August 21, 2010

A stationary, backdoor front lingered across northeast Georgia. The remnants of Tropical Depression Number Five (TD5) were making one final revolution through Georgia around a large subtropical ridge across the mid-south.

Damage
$400,000
Events
1

The full record

2011Flash Flooding in New Mexico, August 21, 2011

The first day of flash flooding over the Las Conchas burn scar was widespread as weak upper level disturbances rounded the west side of the upper high. Early in the afternoon, showers and thunderstorms developed over the central and northern portions of the burn scar.

Damage
$11 million
Events
5

The full record

2014Flooding and Hail in Indiana, August 21, 2014

During the evening of the 21st, a line of thunderstorms intensified as it moved into northern portions of central Indiana. Hail damage to structures and trees knocked down were common from near Lafayette east through Lebanon and Noblesville to Anderson.

Damage
$70,000
Strongest
2 in hail
Events
15

The full record

2019Flooding in Alaska, August 21 to 25, 2019

The Snow Glacier Dammed Lake (GDL) on the Kenai Peninsula releases, on average, every other year. The 2019 release was an unusually high amount of water. This release was also earlier than past years, which normally occur later in the water year when water levels are low.

Damage
$700,000
Events
2

The full record

2025Flash Flooding in North Carolina, August 21, 2025

A cluster of slow-moving thunderstorms passed across eastern Surry County and western Stokes County during the evening of August 21st. Rainfall rates within some of the stronger storms were observed to be as high as 5 inches per hour.

Damage
$150,000
Events
2

The full record

Severe storms

48 on August 21, oldest first.

1993Hail in North Dakota, August 21, 1993

Between 3.00 and 7.00 inches of rain fell over a large part of Williams, Divide, Burke, and Mountrail Counties overnight August 21st and 22nd. Water damage from the heavy rains was widespread. A section of Highway 1804 was completely washed out.

Damage
$1.2 million
Strongest
1.25 in hail
Events
3

The full record

1995Damaging Winds in Texas, August 21, 1995

Damage was reported to roofs with some tree limbs downed as a brief gust struck the city. One roof was lifted and dropped on several cars. The storm also knocked down power lines for several blocks.

Damage
$99,000
Strongest
90 kt wind
Events
17

The full record

1997Hail in Nebraska, August 21, 1997

A round of late afternoon and evening thunderstorms rolled south from Greeley to Hall county. A part of northwest Howard sustained tremendous crop loss from the wind driven hail. Drifts of hail were still present the next morning. Windows were broken and pivots overturned.

Damage
$7.1 million
Strongest
2 in hail
Events
5

The full record

1997Hail and Damaging Winds in Nebraska, August 21, 1997

Early morning thunderstorms dumped hail north of Gibbon for five minutes while uprooting trees in Kearney as well. Severe crop damage occurred in Kearney and Franklin counties as the combination of wind and hail damaged corn and soybeans.

Damage
$1.7 million
Strongest
1 in hail
Events
4

The full record

2004Damaging Wind in Rhode Island, August 21, 2004

A severe thunderstorm produced a microburst with winds estimated at 70 mph in Woonsocket, according to a National Weather Service storm survey. Trees were downed and uprooted in the Jillson Avenue area just south of the Bernon Heights School.

Damage
$500,000
Strongest
62 kt wind
Events
1

The full record

2007Hail and Damaging Wind in Nebraska, August 21, 2007

Thunderstorms fired along a line from North Central Nebraska into eastern portions of Southwest Nebraska. Numerous reports of large hail were received...with the largest being baseball size. Thunderstorm outflow winds also were reported across Frontier County.

Damage
$625,000
Strongest
2.75 in hail
Events
15

The full record

2007Hail and Damaging Winds in Virginia, August 21, 2007

A frontal boundary to the northeast, kept an unstable environment over the area during the afternoon of August 21st. An upper disturbance passed overhead which helped to trigger numerous thunderstorms. Some of of these storms were severe with damaging winds and large hail.

Damage
$63,000
Strongest
55 kt wind
Events
35

The full record

2011Hail and Damaging Wind in Nebraska, August 21, 2011

During the morning to early afternoon on this Sunday, two separate complexes of strong to marginally severe thunderstorms tracked southeast through northern portions of South Central Nebraska, primarily north of state Highway 92.

Damage
$1.0 million
Strongest
52 kt wind
Events
2

The full record

2011Hail and Damaging Winds in Vermont, August 21, 2011

On the afternoon of August 21st, a cold front supported by a strong mid-atmospheric disturbance moved across a unstable air mass across Vermont. Numerous showers and thunderstorms developed during the afternoon with some containing large hail and damaging winds.

Damage
$155,000
Strongest
1.75 in hail
Events
12

The full record

2013Hail and Damaging Winds in Nebraska, August 21, 2013

A disturbance moved east to initiate thunderstorms that intensified to produce hail up to baseball size. As storms became elevated further northeast to produce strong winds and localized wind damage. The hail broke out windows of homes.

Damage
$66,000
Strongest
2.75 in hail
Events
16

The full record

2020Hail and Damaging Winds in New Mexico, August 21, 2020

With an area of high pressure centered near the Four Corners, drier air began to move into western New Mexico. Meanwhile, an upper-level trough that moved through northeastern New Mexico provided the lift necessary for a round of afternoon thunderstorms.

Damage
$132,000
Strongest
1 in hail
Events
5

The full record

2023Hail and Damaging Winds in Arizona, August 21, 2023

Scattered thunderstorms developed and moved northwest across southeast Arizona during the afternoon and evening. Wind damage took place in Whetstone and also at Saguaro National Park West where hundreds of saguaros were downed or damaged.

Damage
$110,000
Strongest
1.5 in hail
Events
5

The full record

Heat and drought

5 on August 21, oldest first.

2001Heat in Missouri, August 21 to 22, 2001

The last heat wave of the "summer" hit the area for 2 days. High temperature ranged from the middle 90s to 100 with the Heat Index from 105 to 110. St. Louis hit 100 degrees for the 1st time this summer.

Injuries
14
Events
29

The full record

2017Heat in Illinois, August 21, 2017

Heat indices peaked around 105 degrees during the afternoon. A total eclipse of the sun during the afternoon helped to keep temperatures and heat indices from climbing higher. At a music festival near Marion, 15 people had to be treated for heat-related illnesses.

Injuries
15
Events
19

The full record

Records set

2 on August 21, oldest first.

Wildfires

45 on August 21, oldest first.

1988Fayette Fire

The Fayette Fire started on August 21, 1988, in Wyoming, and burned 29,217 acres.

When
August 21, 1988
Acres
29,217

The full record

1992Unnamed Fire

The Unnamed Fire started on August 21, 1992, in California, and burned 10,234 acres.

When
August 21, 1992
Acres
10,234

The full record

1992Trapper Fire

The Trapper Fire was discovered on August 21, 1992, in Idaho, and burned 9,500 acres; the cause was recorded as natural.

When
August 21, 1992
Acres
9,500

The full record

2002Trick Fire

The Trick Fire was discovered on August 21, 2002, in Arizona, and burned 5,550 acres; the cause was recorded as natural.

When
August 21, 2002
Acres
5,550

The full record

2006Columbia Complex

The Columbia Complex was discovered on August 21, 2006, in Columbia County, Washington, and burned 109,259 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
109,259

The full record

2006Pueblo Fire

The Pueblo Fire was discovered on August 21, 2006, in Harney County, Oregon, and burned 68,224 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
68,224.1

The full record

2006Granddad Fire

The Granddad Fire was discovered on August 21, 2006, in Harney County, Oregon, and burned 46,523 acres; the cause was recorded as arson/incendiarism.

When
August 21, 2006
Acres
46,522.7

The full record

2006Star Mountain Fire

The Star Mountain Fire was discovered on August 21, 2006, in Malheur County, Oregon, and burned 43,545 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
43,545

The full record

2006Craters Fire

The Craters Fire was discovered on August 21, 2006, in Harney County, Oregon, and burned 10,767 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
10,766.6

The full record

2006Frenchie Fire

The Frenchie Fire was discovered on August 21, 2006, in Washington County, Idaho, and burned 10,610 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
10,610

The full record

2006Basque Wells Fire

The Basque Wells Fire was discovered on August 21, 2006, in Harney County, Oregon, and burned 7,202 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
7,201.6

The full record

2006Chubby Spain Fire

The Chubby Spain Fire was discovered on August 21, 2006, in Owyhee County, Idaho, and burned 6,074 acres; the cause was recorded as natural.

When
August 21, 2006
Acres
6,074

The full record

2009Oden Road Fire

The Oden Road Fire was discovered on August 21, 2009, in Washington, and burned 9,607 acres; the cause was recorded as natural.

When
August 21, 2009
Acres
9,607

The full record

2010Wildfire and Damaging Winds in Idaho, August 21 to 22, 2010

A dry cold front moving across Eastern Oregon and Idaho set off a series of mainly dry thunderstorms generating severe outflow winds in the Treasure Valley, including Boise, and the Snake River plain throughout the evening of the 21st.

Deaths
1
Injuries
70
Damage
$100,000
Strongest
67 kt wind
Events
6

The full record

2010Long Butte Fire

The Long Butte Fire was discovered on August 21, 2010, in Elmore County, Idaho, and burned 306,113 acres; the cause was recorded as natural.

When
August 21, 2010
Acres
306,113

The full record

2010Raven Fire

The Raven Fire was discovered on August 21, 2010, in Montana, and burned 27,898 acres; the cause was recorded as natural.

When
August 21, 2010
Acres
27,898

The full record

2010Stump Gulch Fire

The Stump Gulch Fire was discovered on August 21, 2010, in Stillwater County, Montana, and burned 9,870 acres; the cause was recorded as human.

When
August 21, 2010
Acres
9,870

The full record

2010Bowen Fire

The Bowen Fire was discovered on August 21, 2010, in Power County, Idaho, and burned 6,663 acres; the cause was recorded as equipment and vehicle use.

When
August 21, 2010
Acres
6,663

The full record

2011Squaw Mtn Fire

The Squaw Mtn Fire was discovered on August 21, 2011, in Platte County, Wyoming, and burned 14,484 acres; the cause was recorded as natural.

When
August 21, 2011
Acres
14,484

The full record

2011Bingham Point Fire

The Bingham Point Fire was discovered on August 21, 2011, in Minidoka County, Idaho, and burned 6,673 acres; the cause was recorded as natural.

When
August 21, 2011
Acres
6,673

The full record

2011Hole in the Wall Fire

The Hole in the Wall Fire was discovered on August 21, 2011, in Wyoming, and burned 6,343 acres; the cause was recorded as natural.

When
August 21, 2011
Acres
6,343

The full record

2015Wilderness Complex

The Wilderness Complex was reported on August 21, 2015, in Idaho County, Idaho, and burned 20,695 acres; the cause was recorded as natural.

When
August 21, 2015
Acres
20,695

The full record

2016Henrys Creek Fire

The Henrys Creek Fire was reported on August 21, 2016, in Bonneville County, Idaho, and burned 52,972 acres; the cause was recorded as human.

When
August 21, 2016
Acres
52,972

The full record

2016Cherry Road Fire

The Cherry Road Fire was reported on August 21, 2016, in Malheur County, Oregon, and burned 35,308 acres; the cause was recorded as human.

When
August 21, 2016
Acres
35,308

The full record

2016Spokane Complex

The Spokane Complex was reported on August 21, 2016, in Spokane County, Washington, and burned 6,358 acres.

When
August 21, 2016
Acres
6,358

The full record

2016Tule #6 Fire

The Tule #6 Fire was reported on August 21, 2016, in Yakima County, Washington, and burned 6,200 acres.

When
August 21, 2016
Acres
6,200

The full record

2017Horse Creek Complex

The Horse Creek Complex was reported on August 21, 2017, in Lane County, Oregon, and burned 33,780 acres.

When
August 21, 2017
Acres
33,780

The full record

2019Goose Point Fire

The Goose Point Fire was reported on August 21, 2019, in Utah County, Utah, and burned 8,908 acres.

When
August 21, 2019
Acres
8,908

The full record

2020East Fork Fire

The East Fork Fire was reported on August 21, 2020, in Duchesne County, Utah, and burned 89,765 acres; the cause was recorded as natural.

When
August 21, 2020
Acres
89,765

The full record

2020Rockhouse Fire

The Rockhouse Fire was reported on August 21, 2020, in Pinal County, Arizona, and burned 19,506 acres; the cause was recorded as natural.

When
August 21, 2020
Acres
19,506

The full record

2024Wildfire in Wyoming, August 21 to 30, 2024

The House Draw fire was sparked by by a lightning strike on the afternoon of August 21. Wind gusting to 40 mph spread the fire rapidly to the north and south of the ignition point, eventually consuming around 175000 acres before being mostly contained by August 30.

Damage
$25 million
Events
2

The full record

2024House Draw Fire

The House Draw Fire was reported on August 21, 2024, in Johnson County, Wyoming, and burned 174,547 acres; the cause was recorded as natural.

When
August 21, 2024
Acres
174,547

The full record

2024Flat Rock Fire

The Flat Rock Fire was reported on August 21, 2024, in Campbell County, Wyoming, and burned 52,421 acres.

When
August 21, 2024
Acres
52,421

The full record

2024Constitution Fire

The Constitution Fire was reported on August 21, 2024, in Campbell County, Wyoming, and burned 24,630 acres.

When
August 21, 2024
Acres
24,630

The full record

2024Barber Draw Fire

The Barber Draw Fire was reported on August 21, 2024, in Big Horn County, Montana, and burned 6,739 acres; the cause was recorded as natural.

When
August 21, 2024
Acres
6,738.9

The full record

2025Flat Fire

The Flat Fire was reported on August 21, 2025, in Jefferson County, Oregon, and burned 23,346 acres; the cause was recorded as human.

When
August 21, 2025
Acres
23,346

The full record

2025Dollar Lake Fire

The Dollar Lake Fire was reported on August 21, 2025, in Sublette County, Wyoming, and burned 19,467 acres; the cause was recorded as human.

When
August 21, 2025
Acres
19,467

The full record

2025Pickett Fire

The Pickett Fire was reported on August 21, 2025, in Napa County, California, and burned 6,819 acres.

When
August 21, 2025
Acres
6,819

The full record

2026Camp Creek Fire

The Camp Creek Fire was reported on August 21, 2026, in Powell County, Montana, and burned 9,725 acres; the cause was recorded as natural.

When
August 21, 2026
Acres
9,725

The full record

Earthquakes

17 on August 21, oldest first.

Volcanoes

1 on August 21, oldest first.

Tsunamis

9 on August 21, oldest first.

Space weather and aurora

1 on August 21, oldest first.

Other weather

6 on August 21, oldest first.

2004High Surf in Guam, August 21, 2004

A male Chinese tourist, 38, was taking pictures of his friends on the rocks of the Grotto at Marpi, Saipan. A very large wave came in suddenly, and swept him out over the reef. His body was never recovered. One of the friends was injured, requiring hospital care.

Deaths
1
Injuries
1
Events
1

The full record

2010Rip Current in Texas, August 21, 2010

Strong rip currents occurred along Padre and Mustang Islands during the late afternoon and evening hours on the 21st. Two adults, in separate incidents, were caught in rip currents and drowned.

Deaths
1
Events
1

The full record

2010Rip Current in Texas, August 21, 2010

Strong rip currents occurred along Padre and Mustang Islands during the late afternoon and evening hours on the 21st. Two adults, in separate incidents, were caught in rip currents and drowned.

Deaths
1
Events
1

The full record

Every day of the year

Sources

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.