GITNUXREPORT 2026

Tornadoes Statistics

The United States faces over 1,200 tornadoes yearly, making it the world's most tornado-prone country.

106 statistics6 sections9 min readUpdated 12 days ago

Key Statistics

Statistic 1

From 1980-2022, tornadoes caused 1,759 fatalities in the US, with an average of 36 deaths per year.

Statistic 2

The 2011 Joplin, Missouri EF5 tornado killed 161 people and caused $2.8 billion in damage.

Statistic 3

Tornadoes in the US have caused over $500 billion in total damage since 1950, adjusted for inflation.

Statistic 4

Nighttime tornadoes (6pm-6am) account for 30% of all tornadoes but 42% of fatalities since 1980.

Statistic 5

Mobile homes are 15 times more dangerous in tornadoes than site-built homes.

Statistic 6

Tornado damage costs averaged $1.2 billion annually from 2010-2020.

Statistic 7

Tornadoes injure 6,000 people annually on average in the US.

Statistic 8

Manufactured homes suffer collapse in EF2 winds, leading to 50% of mobile home deaths.

Statistic 9

Total US tornado fatalities 1950-2022: 1,759, with 56% in mobile homes.

Statistic 10

Average tornado cost per event: $10 million in property damage.

Statistic 11

42% of tornado deaths occur at nighttime.

Statistic 12

Mobile home residents comprise 55% of tornado victims since 2000.

Statistic 13

Annual economic loss from tornadoes: $8-10 billion adjusted.

Statistic 14

Supercell thunderstorms produce 70-80% of all significant tornadoes (EF2+).

Statistic 15

Warm, moist Gulf air colliding with dry Plains air creates instability leading to 90% of US tornadoes.

Statistic 16

Drylines, boundaries between moist and dry air, trigger 20% of major tornado outbreaks.

Statistic 17

Rear-flank downdraft (RFD) in supercells cuts off inflow, tightening the mesocyclone for tornado formation in 50% of cases.

Statistic 18

CAPE values over 2,000 J/kg combined with strong wind shear (>40 knots) produce 80% of violent tornadoes.

Statistic 19

Mesocyclones, rotating updrafts 2-6 miles wide, precede 70% of significant tornadoes.

Statistic 20

Wind shear of 50+ knots at 0-6 km height is present in 90% of EF2+ tornadoes.

Statistic 21

Cold fronts occluding with warm fronts lift air parcels, initiating 40% of supercells.

Statistic 22

SRH (Storm-Relative Helicity) over 300 m2/s2 correlates with 75% of significant tornadoes.

Statistic 23

Vorticity stretching in tilting updrafts amplifies rotation in 60% of tornadic supercells.

Statistic 24

Low LCL heights (<1 km) favor tornado formation in 70% of Plains supercells.

Statistic 25

Buoyancy from high theta-e (>60C) dewpoints >60F essential for 85% of tornadoes.

Statistic 26

Helicity advection model (HLAM) forecasts 65% of High Risk days accurately.

Statistic 27

Supercell Composite Parameter >1 flags 80% of significant tornado environments.

Statistic 28

Significant tornado parameter (STP) >3 predicts 70% of EF2+.

Statistic 29

The United States experiences more than 1,200 tornadoes per year on average, making it the most tornado-prone country in the world.

Statistic 30

From 1950 to 2022, the annual average number of tornadoes reported in the US increased from about 900 to over 1,200 due to better detection.

Statistic 31

In 2011, the US had a record 1,691 confirmed tornadoes, the highest annual total ever recorded.

Statistic 32

April is the peak month for tornadoes in the US, averaging 180 tornadoes per year from 1991-2020.

Statistic 33

From 2010-2019, the Southeast US saw a 20% increase in tornado frequency compared to previous decades.

Statistic 34

2023 saw 1,378 tornadoes in the US, the 4th highest annual total since 1950.

Statistic 35

Tornado touchdown times peak between 4-6 pm local time, accounting for 25% of all events.

Statistic 36

Spring (March-May) accounts for 55% of annual US tornadoes.

Statistic 37

Since 2011, annual tornado counts have averaged 1,100, down from 1,300 pre-2011.

Statistic 38

2021 had 1,376 tornadoes, including the Western Kentucky EF4.

Statistic 39

Autumn tornadoes (Sep-Nov) average 150 per season, often from tropical systems.

Statistic 40

Winter tornadoes (Dec-Feb) average 70 per year, highest in Southeast.

Statistic 41

Peak tornado hour is 5 pm, with 12% of all touchdowns.

Statistic 42

30-year average (1991-2020) tornadoes: 1,253 per year.

Statistic 43

Tornado reports doubled since 1950 due to Doppler radar and population growth.

Statistic 44

June averages 140 tornadoes, 2nd peak month after April.

Statistic 45

Tornado warnings now issued 14 minutes in advance on average, up from 3 min in 1986.

Statistic 46

No significant long-term increase in US tornado frequency 1954-2022.

Statistic 47

July tornadoes average 90, lowest monthly total.

Statistic 48

Tornado days per year average 70 in Oklahoma.

Statistic 49

August averages 70 tornadoes, late season.

Statistic 50

Tornado Alley, defined by high tornado frequency, spans Texas, Oklahoma, Kansas, Nebraska, and parts of surrounding states, with over 10,000 tornadoes since 1950.

Statistic 51

The state of Texas leads with 10,544 tornadoes recorded from 1950-2022, averaging 156 per year.

Statistic 52

Kansas has the highest tornado density per square mile, with 55.6 tornadoes per 1,000 square miles from 1950-2022.

Statistic 53

Florida averages 50 tornadoes per year but mostly weak EF0-EF1 due to water-spawned waterspouts.

Statistic 54

Mississippi has the highest per capita tornado rate at 1.1 tornadoes per 1,000 square miles annually.

Statistic 55

Nebraska ranks 3rd in total tornadoes with 3,800 from 1950-2022, averaging 56 per year.

Statistic 56

Dixie Alley in the Southeast has seen increasing EF3+ tornadoes, with 20% more since 2000.

Statistic 57

Illinois has 5,232 tornadoes since 1950, ranking 4th nationally.

Statistic 58

Waterspouts transitioning to land tornadoes cause 10% of Florida's tornadoes.

Statistic 59

Alabama recorded 1,292 tornadoes from 1950-2022, high for its size.

Statistic 60

Iowa averages 47 tornadoes per year, with high density in the Midwest.

Statistic 61

Colorado has increasing tornado reports, 500+ since 1950, mostly high plains.

Statistic 62

Missouri ranks 5th with 4,828 tornadoes since 1950.

Statistic 63

Arkansas averages 39 tornadoes/year, part of Dixie Alley.

Statistic 64

Louisiana has 1,200 tornadoes since 1950, influenced by Gulf moisture.

Statistic 65

Kentucky saw 1,435 tornadoes 1950-2022, spiking after 2021.

Statistic 66

Tennessee ranks high with 1,945 tornadoes since 1950.

Statistic 67

Ohio has 2,998 tornadoes 1950-2022, Midwest contributor.

Statistic 68

Indiana 3,202 tornadoes since 1950.

Statistic 69

Georgia 1,366 tornadoes, Southeast influence.

Statistic 70

The Tri-State Tornado of 1925 traveled 219 miles across Missouri, Illinois, and Indiana, the longest track on record.

Statistic 71

The 1999 Bridge Creek-Moore tornado produced winds up to 301 mph, the highest wind speed ever measured in a tornado.

Statistic 72

Oklahoma recorded 72 tornadoes on May 3, 1999, during a single historic outbreak.

Statistic 73

The widest tornado on record is the 2013 El Reno, Oklahoma tornado at 2.6 miles wide.

Statistic 74

The 1974 Super Outbreak produced 148 tornadoes across 13 states, killing 335 people.

Statistic 75

The 1896 St. Louis-East St. Louis tornado killed 255, one of the deadliest ever.

Statistic 76

1965 Palm Sunday outbreak had 47 tornadoes, killing 266 across six states.

Statistic 77

The 1936 Gainesville, GA tornado killed 203 in just 7 minutes.

Statistic 78

The 1991 Andover, KS F5 killed 17 and had a 45-mile path.

Statistic 79

The longest tornado path in a single day is 149 miles by the 1925 Tri-State.

Statistic 80

1953 Worcester, MA F4 killed 90, northernmost F4 at the time.

Statistic 81

The 1840 Natchez Tornado killed over 300, deadliest in US history.

Statistic 82

1985 United States-Canada outbreak had 69 tornadoes, killing 89.

Statistic 83

The 2011 Super Outbreak killed 324 across 21 states with 360 tornadoes.

Statistic 84

Deadliest single tornado: 1925 Tri-State with 695 deaths.

Statistic 85

1947 Woodward, OK F5 killed 181 over 100-mile path.

Statistic 86

1966 Topeka, KS F5 traveled 22 miles through city.

Statistic 87

1913 Omaha Easter Sunday tornado killed 103.

Statistic 88

1957 Fargo, ND F5 killed 10, rare northern tornado.

Statistic 89

EF5 tornadoes, the strongest on the Enhanced Fujita scale, have winds exceeding 200 mph and comprise less than 1% of all tornadoes.

Statistic 90

Average tornado path width is 500 feet, but the 2013 El Reno tornado had a maximum width of 2.6 miles.

Statistic 91

EF0 tornadoes, with winds 65-85 mph, account for 73% of all rated tornadoes since 1950.

Statistic 92

The Enhanced Fujita (EF) scale rates tornado intensity based on damage, replacing the Fujita scale in 2007.

Statistic 93

EF4 tornadoes have winds 166-200 mph and represent 6% of all tornadoes from 1950-2022.

Statistic 94

EF1 tornadoes (86-110 mph) make up 20% of tornadoes and cause significant roof and tree damage.

Statistic 95

From 1996-2022, EF3 tornadoes (136-165 mph) comprised 3% of all rated tornadoes.

Statistic 96

EF2 tornadoes (111-135 mph) account for 9% of tornadoes and often debark trees.

Statistic 97

EF5 tornadoes have swept well-built homes clean off foundations.

Statistic 98

EF0 tornadoes rarely cause deaths but damage roofs and power lines.

Statistic 99

EF3 tornadoes debark trees and destroy frame homes.

Statistic 100

EF4 tornadoes hurl vehicles 1/4 mile and level well-built homes.

Statistic 101

EF5 winds >200 mph can carry debris over 100 miles.

Statistic 102

EF1 damages asphalt shingles and snaps large branches.

Statistic 103

Tornadic debris project (TDP) found debris travel up to 140 miles in EF5s.

Statistic 104

EF2 peels roofs and uproots large trees.

Statistic 105

EF3 destroys entire homes, cars airborne.

Statistic 106

80% of tornadoes rated EF0-EF1, weak but numerous.

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01Primary Source Collection

Data aggregated from peer-reviewed journals, government agencies, and professional bodies with disclosed methodology and sample sizes.

02Editorial Curation

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03AI-Powered Verification

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04Human Cross-Check

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Read our full methodology →

Statistics that fail independent corroboration are excluded.

From the jaw-dropping two-mile-wide monster in Oklahoma to the 695 lives tragically claimed by a single twister in 1925, the raw power of tornadoes is terrifyingly clear from the statistics alone, cementing the United States as the global epicenter for these violent storms.

Key Takeaways

  • The United States experiences more than 1,200 tornadoes per year on average, making it the most tornado-prone country in the world.
  • From 1950 to 2022, the annual average number of tornadoes reported in the US increased from about 900 to over 1,200 due to better detection.
  • In 2011, the US had a record 1,691 confirmed tornadoes, the highest annual total ever recorded.
  • Tornado Alley, defined by high tornado frequency, spans Texas, Oklahoma, Kansas, Nebraska, and parts of surrounding states, with over 10,000 tornadoes since 1950.
  • The state of Texas leads with 10,544 tornadoes recorded from 1950-2022, averaging 156 per year.
  • Kansas has the highest tornado density per square mile, with 55.6 tornadoes per 1,000 square miles from 1950-2022.
  • EF5 tornadoes, the strongest on the Enhanced Fujita scale, have winds exceeding 200 mph and comprise less than 1% of all tornadoes.
  • Average tornado path width is 500 feet, but the 2013 El Reno tornado had a maximum width of 2.6 miles.
  • EF0 tornadoes, with winds 65-85 mph, account for 73% of all rated tornadoes since 1950.
  • The Tri-State Tornado of 1925 traveled 219 miles across Missouri, Illinois, and Indiana, the longest track on record.
  • The 1999 Bridge Creek-Moore tornado produced winds up to 301 mph, the highest wind speed ever measured in a tornado.
  • Oklahoma recorded 72 tornadoes on May 3, 1999, during a single historic outbreak.
  • From 1980-2022, tornadoes caused 1,759 fatalities in the US, with an average of 36 deaths per year.
  • The 2011 Joplin, Missouri EF5 tornado killed 161 people and caused $2.8 billion in damage.
  • Tornadoes in the US have caused over $500 billion in total damage since 1950, adjusted for inflation.

The United States faces over 1,200 tornadoes yearly, making it the world's most tornado-prone country.

Casualties and Damage

1From 1980-2022, tornadoes caused 1,759 fatalities in the US, with an average of 36 deaths per year.
Verified
2The 2011 Joplin, Missouri EF5 tornado killed 161 people and caused $2.8 billion in damage.
Single source
3Tornadoes in the US have caused over $500 billion in total damage since 1950, adjusted for inflation.
Directional
4Nighttime tornadoes (6pm-6am) account for 30% of all tornadoes but 42% of fatalities since 1980.
Verified
5Mobile homes are 15 times more dangerous in tornadoes than site-built homes.
Single source
6Tornado damage costs averaged $1.2 billion annually from 2010-2020.
Verified
7Tornadoes injure 6,000 people annually on average in the US.
Single source
8Manufactured homes suffer collapse in EF2 winds, leading to 50% of mobile home deaths.
Verified
9Total US tornado fatalities 1950-2022: 1,759, with 56% in mobile homes.
Directional
10Average tornado cost per event: $10 million in property damage.
Directional
1142% of tornado deaths occur at nighttime.
Verified
12Mobile home residents comprise 55% of tornado victims since 2000.
Single source
13Annual economic loss from tornadoes: $8-10 billion adjusted.
Verified

Casualties and Damage Interpretation

While tornadoes may seem like a distant threat, the sobering statistics reveal a deadly bias, disproportionately targeting vulnerable communities sheltering in mobile homes and turning the cloak of night into a significantly more lethal curtain.

Formation and Causes

1Supercell thunderstorms produce 70-80% of all significant tornadoes (EF2+).
Verified
2Warm, moist Gulf air colliding with dry Plains air creates instability leading to 90% of US tornadoes.
Single source
3Drylines, boundaries between moist and dry air, trigger 20% of major tornado outbreaks.
Single source
4Rear-flank downdraft (RFD) in supercells cuts off inflow, tightening the mesocyclone for tornado formation in 50% of cases.
Single source
5CAPE values over 2,000 J/kg combined with strong wind shear (>40 knots) produce 80% of violent tornadoes.
Verified
6Mesocyclones, rotating updrafts 2-6 miles wide, precede 70% of significant tornadoes.
Verified
7Wind shear of 50+ knots at 0-6 km height is present in 90% of EF2+ tornadoes.
Directional
8Cold fronts occluding with warm fronts lift air parcels, initiating 40% of supercells.
Single source
9SRH (Storm-Relative Helicity) over 300 m2/s2 correlates with 75% of significant tornadoes.
Verified
10Vorticity stretching in tilting updrafts amplifies rotation in 60% of tornadic supercells.
Verified
11Low LCL heights (<1 km) favor tornado formation in 70% of Plains supercells.
Verified
12Buoyancy from high theta-e (>60C) dewpoints >60F essential for 85% of tornadoes.
Directional
13Helicity advection model (HLAM) forecasts 65% of High Risk days accurately.
Directional
14Supercell Composite Parameter >1 flags 80% of significant tornado environments.
Verified
15Significant tornado parameter (STP) >3 predicts 70% of EF2+.
Single source

Formation and Causes Interpretation

The atmosphere’s chaotic recipe for mayhem is a precise, if violent, blend of hot, wet Gulf air colliding with dry Plains air, supercell thunderstorms spinning up with specific wind shear and instability, and a dash of bad timing, which together ensure that when the conditions line up just wrong, a significant tornado is statistically very likely to form.

Geographical Distribution

1Tornado Alley, defined by high tornado frequency, spans Texas, Oklahoma, Kansas, Nebraska, and parts of surrounding states, with over 10,000 tornadoes since 1950.
Verified
2The state of Texas leads with 10,544 tornadoes recorded from 1950-2022, averaging 156 per year.
Single source
3Kansas has the highest tornado density per square mile, with 55.6 tornadoes per 1,000 square miles from 1950-2022.
Verified
4Florida averages 50 tornadoes per year but mostly weak EF0-EF1 due to water-spawned waterspouts.
Directional
5Mississippi has the highest per capita tornado rate at 1.1 tornadoes per 1,000 square miles annually.
Directional
6Nebraska ranks 3rd in total tornadoes with 3,800 from 1950-2022, averaging 56 per year.
Directional
7Dixie Alley in the Southeast has seen increasing EF3+ tornadoes, with 20% more since 2000.
Verified
8Illinois has 5,232 tornadoes since 1950, ranking 4th nationally.
Verified
9Waterspouts transitioning to land tornadoes cause 10% of Florida's tornadoes.
Verified
10Alabama recorded 1,292 tornadoes from 1950-2022, high for its size.
Directional
11Iowa averages 47 tornadoes per year, with high density in the Midwest.
Verified
12Colorado has increasing tornado reports, 500+ since 1950, mostly high plains.
Directional
13Missouri ranks 5th with 4,828 tornadoes since 1950.
Verified
14Arkansas averages 39 tornadoes/year, part of Dixie Alley.
Single source
15Louisiana has 1,200 tornadoes since 1950, influenced by Gulf moisture.
Verified
16Kentucky saw 1,435 tornadoes 1950-2022, spiking after 2021.
Verified
17Tennessee ranks high with 1,945 tornadoes since 1950.
Verified
18Ohio has 2,998 tornadoes 1950-2022, Midwest contributor.
Verified
19Indiana 3,202 tornadoes since 1950.
Verified
20Georgia 1,366 tornadoes, Southeast influence.
Directional

Geographical Distribution Interpretation

While Texas boasts the sheer volume of a tornado titan, Kansas packs the densest punch per square mile, Mississippi claims the highest per capita risk, and Dixie Alley is quietly sharpening its claws with increasingly violent storms.

Historical Records

1The Tri-State Tornado of 1925 traveled 219 miles across Missouri, Illinois, and Indiana, the longest track on record.
Single source
2The 1999 Bridge Creek-Moore tornado produced winds up to 301 mph, the highest wind speed ever measured in a tornado.
Verified
3Oklahoma recorded 72 tornadoes on May 3, 1999, during a single historic outbreak.
Single source
4The widest tornado on record is the 2013 El Reno, Oklahoma tornado at 2.6 miles wide.
Verified
5The 1974 Super Outbreak produced 148 tornadoes across 13 states, killing 335 people.
Verified
6The 1896 St. Louis-East St. Louis tornado killed 255, one of the deadliest ever.
Verified
71965 Palm Sunday outbreak had 47 tornadoes, killing 266 across six states.
Directional
8The 1936 Gainesville, GA tornado killed 203 in just 7 minutes.
Verified
9The 1991 Andover, KS F5 killed 17 and had a 45-mile path.
Verified
10The longest tornado path in a single day is 149 miles by the 1925 Tri-State.
Verified
111953 Worcester, MA F4 killed 90, northernmost F4 at the time.
Verified
12The 1840 Natchez Tornado killed over 300, deadliest in US history.
Verified
131985 United States-Canada outbreak had 69 tornadoes, killing 89.
Verified
14The 2011 Super Outbreak killed 324 across 21 states with 360 tornadoes.
Single source
15Deadliest single tornado: 1925 Tri-State with 695 deaths.
Single source
161947 Woodward, OK F5 killed 181 over 100-mile path.
Verified
171966 Topeka, KS F5 traveled 22 miles through city.
Verified
181913 Omaha Easter Sunday tornado killed 103.
Verified
191957 Fargo, ND F5 killed 10, rare northern tornado.
Verified

Historical Records Interpretation

Even in the destructive chaos of nature, there are terrible records: a single tornado can cut the longest path, spin the fastest winds, claim the most lives, and stretch the widest, proving that fury has no single metric.

Intensity Scales

1EF5 tornadoes, the strongest on the Enhanced Fujita scale, have winds exceeding 200 mph and comprise less than 1% of all tornadoes.
Verified
2Average tornado path width is 500 feet, but the 2013 El Reno tornado had a maximum width of 2.6 miles.
Verified
3EF0 tornadoes, with winds 65-85 mph, account for 73% of all rated tornadoes since 1950.
Verified
4The Enhanced Fujita (EF) scale rates tornado intensity based on damage, replacing the Fujita scale in 2007.
Single source
5EF4 tornadoes have winds 166-200 mph and represent 6% of all tornadoes from 1950-2022.
Verified
6EF1 tornadoes (86-110 mph) make up 20% of tornadoes and cause significant roof and tree damage.
Verified
7From 1996-2022, EF3 tornadoes (136-165 mph) comprised 3% of all rated tornadoes.
Single source
8EF2 tornadoes (111-135 mph) account for 9% of tornadoes and often debark trees.
Single source
9EF5 tornadoes have swept well-built homes clean off foundations.
Single source
10EF0 tornadoes rarely cause deaths but damage roofs and power lines.
Directional
11EF3 tornadoes debark trees and destroy frame homes.
Verified
12EF4 tornadoes hurl vehicles 1/4 mile and level well-built homes.
Verified
13EF5 winds >200 mph can carry debris over 100 miles.
Verified
14EF1 damages asphalt shingles and snaps large branches.
Directional
15Tornadic debris project (TDP) found debris travel up to 140 miles in EF5s.
Single source
16EF2 peels roofs and uproots large trees.
Verified
17EF3 destroys entire homes, cars airborne.
Verified
1880% of tornadoes rated EF0-EF1, weak but numerous.
Directional

Intensity Scales Interpretation

While EF5 tornadoes are thankfully rare, making up less than 1% of the total, their sheer violence—capable of sweeping homes off foundations and hurling debris over 100 miles—serves as a humbling reminder of nature's power, even as the vast majority of tornadoes we encounter are far weaker.

How We Rate Confidence

Models

Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.

Single source
ChatGPTClaudeGeminiPerplexity

Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.

AI consensus: 1 of 4 models agree

Directional
ChatGPTClaudeGeminiPerplexity

Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.

AI consensus: 2–3 of 4 models broadly agree

Verified
ChatGPTClaudeGeminiPerplexity

All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.

AI consensus: 4 of 4 models fully agree

Models

Cite This Report

This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.

APA
Priya Chandrasekaran. (2026, February 13). Tornadoes Statistics. Gitnux. https://gitnux.org/tornadoes-statistics
MLA
Priya Chandrasekaran. "Tornadoes Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/tornadoes-statistics.
Chicago
Priya Chandrasekaran. 2026. "Tornadoes Statistics." Gitnux. https://gitnux.org/tornadoes-statistics.

Sources & References

  • NSSL logo
    Reference 1
    NSSL
    nssl.noaa.gov

    nssl.noaa.gov

  • SPC logo
    Reference 2
    SPC
    spc.noaa.gov

    spc.noaa.gov

  • WEATHER logo
    Reference 3
    WEATHER
    weather.gov

    weather.gov

  • EN logo
    Reference 4
    EN
    en.wikipedia.org

    en.wikipedia.org

  • NCEI logo
    Reference 5
    NCEI
    ncei.noaa.gov

    ncei.noaa.gov

  • NWS logo
    Reference 6
    NWS
    nws.noaa.gov

    nws.noaa.gov

  • GFDL logo
    Reference 7
    GFDL
    gfdl.noaa.gov

    gfdl.noaa.gov

  • TORNADOTALK logo
    Reference 8
    TORNADOTALK
    tornadotalk.com

    tornadotalk.com

  • GLOSSARY logo
    Reference 9
    GLOSSARY
    glossary.ametsoc.org

    glossary.ametsoc.org