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Areas of Strong Tornado Occurrence

WorldPhysical Environment

The areas that show the greatest concentration of dots have the highest frequency of tornadoes

A world map shows areas of strong tornado occurrences, marked in red dots. Tornadoes cluster mainly in the eastern region of North America. Other regions include Argentina, parts of Europe, Japan, Bangladesh, Australia, New Zealand, and southern Africa.

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Display by:	Areas of Strong Tornado Occurrence				Native American Culture Areas									Average Number of Tornado Incidences per Year (U.S.)
	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Arctic	California	Eastern Woodlands, Northeast	Great Basin	Northwest Coast	Plains	Plateau	Southwest	Subarctic	Less than 1	1–5	6–10	11–15	More than 15
Yukon					6.48%								92.2%
Northwest Territories					13.2%								69.8%
Nunavut					35.9%								6.18%
Nova Scotia							78.9%
Saskatchewan	7									38.0%			62.0%
New Brunswick							99.0%
Newfoundland and Labrador					10.1%								67.6%
Alberta	9									31.3%	4.22%		64.5%
Québec	30	1					11.3%						64.2%
Manitoba	5	4	1	1			10.8%			7.55%			81.6%
Ontario	46	1					47.4%						52.5%
Alaska					45.7%				1.02%				46.0%	99.8%
Arizona	5	1						8.41%				91.6%		92.2%	7.76%
Utah	2							98.8%				1.20%		100%
District of Columbia							100%								100%
Florida	31	6													64.2%	35.5%
Idaho	1							78.0%			22.0%			100%
New Hampshire	2						99.9%							1.24%	98.7%
Rhode Island							96.5%								99.3%
Vermont	1						100%							77.1%	22.6%
Washington	1										65.1%			99.9%
Wyoming	15	3						62.6%		37.4%				87.7%	12.3%
Montana	8	4						9.49%		74.5%	16.0%			100%
Maine							99.2%							40.0%	59.8%
North Dakota	38	6	5				1.37%			98.6%				29.5%	70.5%
Kentucky	87	26	2				82.5%							4.42%	60.5%	35.1%
Virginia	28	8					45.2%							10.3%	89.6%
Delaware	3						96.5%								99.2%
Mississippi	162	45	7	2											10.9%	74.0%	15.1%
West Virginia	4						64.1%							48.2%	51.8%
Nebraska	67	13	7							100%					88.6%	11.4%
Texas	193	46	7							50.9%		39.0%		16.8%	43.9%	36.9%		2.38%
Missouri	95	36	7	1			12.0%			82.4%					23.4%	62.5%	14.1%
Louisiana	93	15	2												30.4%	69.5%
Hawaii														92.1%
North Carolina	54	12					27.2%								99.9%
Oregon	2							53.9%			18.0%			100%
Alabama	149	34	13	2											69.5%	16.4%	14.0%
New Mexico	7									2.83%		97.2%		90.2%	9.71%
Kansas	82	56	10	1						100%					68.1%	31.5%
Wisconsin	32	11					96.4%			3.59%				13.1%	53.1%	33.7%
British Columbia	1								4.67%		18.1%		57.3%	2.52%
New Jersey	2	1					98.7%							19.5%	80.3%
South Carolina	46	15	1												99.9%
Michigan	20	3					100%							34.8%	64.8%
Connecticut							99.4%								99.9%
Pennsylvania	31	3					100%							6.15%	93.9%
Colorado	25	3						60.5%		25.0%		14.5%		69.4%	30.6%
Nevada								99.9%						100%
Massachusetts	2	1					98.0%								99.5%
Georgia	90	31	4												61.5%	38.5%
New York	17	1					99.5%							61.6%	38.3%
Maryland	8		1				96.7%								99.3%
Oklahoma	104	29	8	2						92.6%					3.41%	35.1%	46.0%	15.5%
Tennessee	82	27	8				11.6%								41.3%	58.7%
California	3					77.4%		20.3%				1.70%		99.9%
Arkansas	105	23	4							35.1%						87.2%	12.8%
South Dakota	47	7	4							100%				22.1%	76.0%	1.85%
Ohio	42	7	3				100%							3.97%	96.0%
Indiana	58	18	1				100%								62.9%	37.1%
Minnesota	60	11	4				44.4%			55.6%				23.4%	72.5%	4.03%
Iowa	86	17	4	1			27.3%			72.7%					50.0%	50.0%
Illinois	108	21	6				98.8%								70.3%	29.6%

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