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  All Day 1 Day 2 _____    12Z 15Z 18Z 21Z 00Z 03Z 06Z 09Z 12Z 15Z 18Z 21Z 00Z 03Z 06Z 09Z 12Z   6 Hr Movr

>=4 Violent Tornadoes In 3 Days

1875-2014

>=1 Violent   Tornado    In 1 Day

1979-2014

04/08/1999 21 UTC
SBCAPE (J/kg)- High Contour
700 Mb Isotach (Kt) - Low Contour
500 Mb Heights (M)
EF0 to EF5 Tornadoes Outlined 3 Hr
Apr
8, 1999
21 Z
Total
   55
EF0
   15
EF1
  24
EF2
   8
EF3
   5
EF4
  3
EF5
Deaths
   6
  •  Met Data 
  •  Yearscale 
   
  Observed Soundings  Timescale              Radar Loop  
 
    Year Movr
  1950  1951  1952  1953  1954  1955  1956  1957  1958  1959  1960  1961  1962  1963  1964  1965  1966  1967  1968  1969  1970  1971  1972  1973  1974  1975  1976  1977  1978  1979  1980  1981  1982 1950s  1960s  1970s  1980s  1990s  2000s
  1983  1984  1985  1986  1987  1988  1989  1990  1991  1992  1993  1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014 1950-74     1975-99     2000-14
NCEP/NCAR R.
 20th Century R.
NARR  NARR SPC 
SPC SPC  Grazulis
For Questions Contact chris.broyles@noaa.gov
*** New *** Weblinks Updated                                                                                      

Documentation (1976 to 2013)
2010 to 2013
May 31, 2013 El Reno, OK
May 28, 2013 Bennington, KS
May 20, 2013 Moore, OK
May 19, 2013 Shawnee, OK
May 18, 2013 Rozel, KS
May 15, 2013 Granbury, TX
February 10, 2013 Hattiesburg, MS
April 14-15, 2012 Great Plains
March 2, 2012 Ohio and Tennessees Valleys
May 24, 2011 Oklahoma
May 22, 2011 Joplin, MO
April 25-27, 2011 Super Outbreak (Southeast & Appalachians)
April 16, 2011 North Carolina
June 17, 2010 Northern Plains
May 10, 2010 Oklahoma and Kansas
1999 to 2009
May 25, 2008 Parkersburg, IA
February 5, 2008 Super Tuesday (Mid MS and TN Valleys)
February 28 and March 1, 2007 Kansas, Alabama and Georgia
March 12, 2006 Missouri
May 22, 2004 Nebraska
May 4-10, 2003 Kansas, Missouri, Oklahoma
November 10, 2002 Veterans Day Outbreak (OH & TN Valleys)
April 28, 2002 La Plata, MD
November 23-24, 2001 Tennessee and Lower Mississippi Valleys
December 16, 2000 Tuscaloosa, AL
1995 and 1999
May 3, 1999 Oklahoma
May 27, 1997 Jarrell, TX
March 1, 1997 Arkansas
June 8, 1995 Texas Panhandle
Web Links
North American Tornado Outbreaks
List of United States F5 and EF5 Tornadoes
Tornadoes Hitting Downtown Areas of Large Cities
SPC High Risk Days
Severe Thunderstorm Climatology
NOAA/NSSL Photo Library
U.S. Tornado Climatology and Violent Tornadoes
 Doswell et al. 2006    Brooks, Doswell and Kay 2003   Doswell and Burgess 1988
   Galway 1977        Doswell, Carbin and Brooks 2012       Kelly et al. 1978   
Verbout et al. 2006         Shafer and Doswell 2010        Schneider Et Al. 2004   
Schneider Et Al. 2004         Concannon Et Al. 2000      Broyles and Crosbie 2004 
 Edwards Et Al. 2004                 Cohen 2010       Broyles Et Al. 2000 Part 1 Part 2
   Smith Et Al. 2012             Fuhrmann Et Al. 2014        Coleman and Dixon 2014  
1990 and 1995
May 18, 1995 Ohio and Tennessee Valleys
March 27, 1994 Southeastern United States
November 22, 1992 Southeastern United States
June 15-16, 1992 Northcentral United States
April 26, 1991 Kansas (Andover) and Oklahoma
June 2, 1990 Lower Ohio Valley
March 13, 1990 Great Plains
1980 to 1989
May 31, 1985 Upper Ohio Valley
March 28, 1984 Carolinas
April 2, 1982 Paris, TX
1976 to 1979
April 10, 1979 Wichita Falls, TX
May 4, 1977 Kansas City, MO
Documentation (1875 to 1975)
1970 to 1975
May 6-7, 1975 Omaha, NE
April 3-4, 1974 Super Outbreak
May 11, 1970 Lubbock, TX
April 17-18, 1970 Texas Panhandle
1950 to 1969
May 15, 1968 Upper Mississippi Valley
June 8, 1966 Topeka, KS
May 6, 1965 Minneapolis-St. Paul, MN
April 11, 1965 Palm Sunday Outbreak
April 2-3, 1956 Great Plains and Lower Michigan
June 7-9, 1953 Flint, MI and Worcester MA
May 10-11, 1953 Upper Mississippi Valley and Waco, TX
March 21-22, 1952 Mid Mississippi and Tennessee Valleys
1925 to 1949
April 9, 1947 Woodward OK
April 12, 1945 Antlers OK and Quincy IL
June 22-23, 1944 Upper Midwest and Appalachian Mountains
March 16, 1942 Mid Mississippi Valley
March 21, 1932 Southeastern U.S.
May 6, 1930 Frost TX
May 9, 1927 Poplar Bluff, MO
March 18, 1925 Tri-state Tornado
1900 to 1924
April 20, 1920 Southeastern U.S.
March 28, 1920 Palm Sunday Outbreak
May 26-27, 1917 Ohio Valley and Southeastern U.S.
March 23, 1913 Easter Sunday, Omaha, NE
April 27-28, 1912 Oklahoma
April 29, 1909 Mississippi and Tennessee Valleys
April 23-24, 1908 Dixie Outbreak
May 10, 1905 Synder, OK
May 18, 1902 Goliad, TX
1850 to 1899
May 27, 1896 St. Louis, MO Tornado
March 27, 1890 Mid Mississippi Valley
February 19, 1884 Enigma Outbreak
May 18, 1883 Racine, WI
April 18, 1880 Marshfield, MO
March 19-20, 1875 Southeastern U.S.
Before 1850
May 7, 1840 Natchez, MS and Vidalia, LA.