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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				Major Iron-Producing Areas in North America	Average Number of Tornado Incidences per Year (U.S.)					Opioid Deaths (U.S.)
	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Areas of Strong Tornado Occurrence	Major Iron-Producing Areas in North America	Less than 1	1–5	6–10	11–15	More than 15	Class	Rank	Deaths per 100,000 people
Saskatchewan	7
Alberta	9
Québec	30	1
Manitoba	5	4	1	1
Ontario	46	1
Nebraska	67	13	7				88.6%	11.4%
Louisiana	93	15	2				30.4%	69.5%
British Columbia	1					2.52%
Pennsylvania	31	3			1.67%	6.15%	93.9%
Alabama	149	34	13	2	1.64%		69.5%	16.4%	14.0%			29	249
Alaska						99.8%						16	338
Arizona	5	1				92.2%	7.76%					19	304
Arkansas	105	23	4					87.2%	12.8%			42	118
California	3					99.9%						31	237
Colorado	25	3				69.4%	30.6%					30	242
Connecticut							99.9%					7	399
Delaware	3						99.2%					3	520
District of Columbia							100%					1	792
Florida	31	6					64.2%	35.5%				25	271
Georgia	90	31	4				61.5%	38.5%				35	190
Hawaii						92.1%						46	90.0
Idaho	1					100%						41	145
Illinois	108	21	6				70.3%	29.6%				24	275
Indiana	58	18	1				62.9%	37.1%				20	300
Iowa	86	17	4	1			50.0%	50.0%				47	81.1
Kansas	82	56	10	1			68.1%	31.5%				36	181
Kentucky	87	26	2			4.42%	60.5%	35.1%				6	435
Maine						40.0%	59.8%					5	468
Maryland	8		1				99.3%					9	392
Massachusetts	2	1					99.5%					14	357
Michigan	20	3			3.89%	34.8%	64.8%					27	266
Minnesota	60	11	4		1.15%	23.4%	72.5%	4.03%				33	202
Mississippi	162	45	7	2			10.9%	74.0%	15.1%			37	168
Missouri	95	36	7	1			23.4%	62.5%	14.1%			22	283
Montana	8	4				100%						43	113
Nevada						100%						23	281
New Hampshire	2					1.24%	98.7%					17	328
New Jersey	2	1				19.5%	80.3%					21	289
New Mexico	7					90.2%	9.71%					12	370
New York	17	1			4.91%	61.6%	38.3%					38	162
North Carolina	54	12					99.9%					34	197
North Dakota	38	6	5			29.5%	70.5%					45	110
Ohio	42	7	3			3.97%	96.0%					10	391
Oklahoma	104	29	8	2			3.41%	35.1%	46.0%	15.5%		32	217
Oregon	2					100%						18	321
Rhode Island							99.3%					15	348
South Carolina	46	15	1				99.9%					11	374
South Dakota	47	7	4			22.1%	76.0%	1.85%				48	43.8
Tennessee	82	27	8				41.3%	58.7%				4	480
Texas	193	46	7			16.8%	43.9%	36.9%		2.38%		44	113
Utah	2					100%						40	149
Vermont	1					77.1%	22.6%					8	399
Virginia	28	8				10.3%	89.6%					26	269
Washington	1					99.9%						13	362
West Virginia	4					48.2%	51.8%					2	735
Wisconsin	32	11				13.1%	53.1%	33.7%				28	261
Wyoming	15	3				87.7%	12.3%					39	157

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