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Atlas (Beta)

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				Continental Shelf	Habitat Fragmentation									Cities
	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Continental Shelf	No Data	Very Low	Low	Moderately Low	Moderate	Moderately High	High	Very High	Extremely High	Cities
Northwest Territories					0.420%	1.90%		10.9%	5.41%	21.2%	8.33%	0.275%	0.935%
New Hampshire	2												80.8%	16.8%
Rhode Island					5.84%									94.9%
Vermont	1												0.314%	1.37%
Wyoming	15	3										0.273%	44.8%	4.05%
Nunavut					1.49%	0.968%		0.100%	0.238%	3.40%
Montana	8	4										0.729%	0.291%	1.69%
Maine					0.686%								82.9%	16.3%
North Dakota	38	6	5											9.96%
Kentucky	87	26	2											0.803%
Delaware	3				2.06%									21.0%
Prince Edward Island					12.7%									91.5%
Mississippi	162	45	7	2										18.5%
West Virginia	4													21.1%
New Brunswick					0.785%					3.39%			0.324%	35.6%
Alabama	149	34	13	2	0.101%									17.9%
Kansas	82	56	10	1								12.6%		48.2%
Newfoundland and Labrador					2.04%		5.13%			0.109%	0.201%	1.56%
New Jersey	2	1			2.40%								1.93%	0.357%
South Carolina	46	15	1											58.8%
Connecticut					0.150%								14.6%	85.2%
Maryland	8		1		2.12%									1.80%
Arkansas	105	23	4											25.3%
South Dakota	47	7	4									2.42%	0.851%	0.598%
Iowa	86	17	4	1										10.5%
Alaska					1.23%	0.220%			0.183%	1.08%	0.155%	0.137%	1.29%	0.106%	1
Arizona	5	1											0.139%	10.8%	2
Utah	2											0.376%	0.196%	39.2%	1
Yukon									0.795%	1.20%	10.9%	14.8%	9.73%		1
District of Columbia														100%	1
Florida	31	6			1.79%						0.355%			80.3%	4
Idaho	1											0.401%	1.00%	8.30%	1
Washington	1				0.997%						8.97%	9.78%	0.487%	0.874%	2
Nova Scotia					3.29%					4.31%			0.376%	7.89%	1
Virginia	28	8			0.705%									6.11%	2
Saskatchewan	7					0.919%			28.6%	8.52%			1.02%	0.695%	1
Nebraska	67	13	7										29.9%	30.0%	1
Texas	193	46	7		0.261%								0.168%	8.05%	5
Missouri	95	36	7	1										5.67%	2
Louisiana	93	15	2		1.29%									0.187%	1
Hawaii										0.296%	0.586%	1.76%		0.911%	1
North Carolina	54	12			0.611%									42.1%	2
Oregon	2										11.5%	0.302%	25.8%	0.243%	1
New Mexico	7												3.80%	24.3%	2
Wisconsin	32	11				0.259%								0.247%	1
British Columbia	1				1.05%	0.147%			1.12%	0.594%	2.88%	2.80%	3.66%	10.6%	1
Michigan	20	3				1.39%								0.144%	1
Alberta	9					0.424%			0.728%	1.52%	10.5%	0.222%	1.32%	0.431%	2
Pennsylvania	31	3											33.7%	0.565%	2
Colorado	25	3											17.7%	35.7%	1
Nevada												0.344%	12.9%	76.5%	1
Massachusetts	2	1			4.75%								32.8%	0.220%	1
Georgia	90	31	4		0.232%									0.544%	1
New York	17	1			0.761%	0.690%							33.9%	0.977%	1
Québec	30	1			0.215%		1.02%	2.36%	2.98%	1.97%			1.83%	1.52%	2
Manitoba	5	4	1	1		0.786%		11.3%	36.2%	21.9%			0.653%	4.68%	1
Oklahoma	104	29	8	2								1.67%		0.437%	2
Tennessee	82	27	8											2.12%	2
Ontario	46	1						28.2%	14.0%	30.5%			13.7%	0.243%	2
California	3				0.133%						0.438%	1.08%	5.44%	13.5%	6
Ohio	42	7	3			0.316%							1.15%	1.29%	2
Indiana	58	18	1											30.9%	1
Minnesota	60	11	4											11.2%	2
Illinois	108	21	6											0.259%	1

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