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405. Tornadoes, Floods, Tropical Storms, and Lightning



 
Weather type 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
 
Tornadoes, number 1.. 653 888 741 1102 947 920 835 852 788 852 866 783 1,046 931 907 684 764 656 702 856 1,133 1,132 1,298 1,176 1,082 1,235 1,170 1,148 (NA)
  Tornado days.... 171 192 194 206 184 204 169 189 173 186 176 175 182 190 166 168 168 151 156 160 181 179 195 186 199 178 196 196 (NA)
  Lives lost, total..... 72 156 27 87 361 60 44 43 53 84 28 24 64 34 122 94 15 59 32 50 53 39 39 33 69 30 25 67 (NA)
    Most in a single tornado.... 26 58 6 7 34 9 5 22 16 42 5 5 10 3 16 18 3 30 5 21 29 17 12 7 22 6 5 27 (NA)
 
  Property loss of $500,000 and over....... 8 8 8 9 9 9 8 8 9 9 9 9 9 9 9 9 9 8 9 9 8 8 8 8 8 8 8 8 (NA)
 
Floods and flash floods:
  Lives lost... 131 68 555 178 111 127 193 210 125 121 82 84 155 204 126 166 94 70 31 85 142 61 62 103 91 80 131 117 (NA)
 
North Atlantic tropical storms
and hurricanes 2 (NA) (NA) (NA) (NA) (NA) (NA) (NA) 6 11 8 11 11 5 4 12 11 6 7 12 11 14 8 7 8 7 19 13 7 14
  Number of hurricanes reaching
   U.S. mainland. (NA) (NA) (NA) (NA) (NA) (NA) (NA) 1 0 3 1 0 0 1 1 6 2 1 1 3 0 1 1 1 0 2 2 1 3
  Total direct deaths from tropical
   storms and hurricanes.... (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 9 3 550 84 123 17 28 273 1,175 121 138 4 (NA)
  Direct deaths on U.S. mainland... (NA) (NA) (NA) (NA) (NA) (NA) (NA) 0 36 22 2 0 0 22 4 30 9 0 6 56 10 17 26 9 38 29 33 4 23
  Property loss in U.S. (mil.dol.) ... (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 4,000 17 8 59 7,670 57 1,500 26,500 57 973 3,729 3,600 100 7,299
 
Lightning:
  Deaths..... 111 113 91 105 102 91 72 98 88 63 76 67 77 77 67 73 68 86 69 67 74 73 41 43 74 85 52 42 (NA)
  Injuries.... 259 254 203 228 173 399 219 291 301 254 275 291 174 337 253 248 271 364 311 322 252 432 292 295 577 510 309 306 (NA)


NA Not available.
1 A violent, rotating column of air descending from a cumulonimbus cloud in the form of a tubular- or funnel-shaped cloud, usually characterized by movements along a narrow path and wind speeds from 100 to over 300 miles per hour. Also known as a "twister" or waterspout."
2 Source: National Hurricane Center, Coral Gables, FL, unpublished data. Tropical storms have maximum winds of 39 to 73 miles per hour; hurricanes have maximum winds of 74 miles per hour or higher.

Source: U.S. National Oceanic and Atmospheric Administration, 1966-1980, Climatological Data: National Summary, monthly with annual summary; thereafter, Storm Data, annual issue.

http://www5.ncdc.noaa.gov/pubs/publications.html#CD

* Hurricane/Typhoon:

A warm-core tropical cyclone in which the maximum sustained surface wind (using the U.S. 1-minute average) is 64 kt (74 mph or 119 km/hr) or more. The term hurricane is used for Northern Hemisphere cyclones east of the International Dateline to the Greenwich Meridian. The term typhoon is used for Pacific cyclones north of the Equator west of the International Dateline.

Hurricane Season: The portion of the year having a relatively high indidence of hurricanes. The hurricane season in the Atlantic, Caribbean, and Gulf of Mexico runs from June 1 to November 30. The hurricane season in the Eastern Pacific basin runs from May 15 to November 30. The hurricane season in the Central Pacific basin runs from June 1 to November 30.

Tropical Storm: A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) ranges from 34 kt (39 mph or 63 km/hr) to 63 kt (73 mph or 118 km/hr).



https://allcountries.org/uscensus/405_tornadoes_floods_tropical_storms_and_lightning.html

These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau.

Copyright © 2006 Photius Coutsoukis and Information Technology Associates, all rights reserved.