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Wet Weather Pattern in the West; Severe Storms in the Eastern U.S.

A number of Pacific storm systems will bring excessive rainfall, strong winds, and mountain snow to the West U.S. These systems may cause burn scar flooding impacts. Severe thunderstorms may impact the Ohio/Tennessee Valleys into Central/Southern Appalachians, and a portion of west Texas on Thursday. Read More >

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Tornado Track Map for Grady County, OK
 
Grady County, OK Tornadoes Prior to 1950
# Date Time
(CST)
Path
Length
(miles)
Path
Width
(yards)
F-Scale Killed Injured County Path
  02/25/1888         0   Grady Alex
  05/18/1903 1730 55 200   0   Grady/ Canadian/ Oklahoma/ Logan NW Oklahoma County - NE of Guthrie
  05/23/1903   8     0   Grady 5 SW Ninnekah
  08/05/1917 1600   1760   1 4 Grady Near Pocasset
  05/31/1923 0000   60   0 0 Grady Near Rush Springs
  04/11/1927 1800 52 500   1 7 Caddo/ Grady/ Canadian Near Alfalfa - near Mustang
  05/03/1930 1710 4 120   0 3 Grady Near Tuttle
  05/05/1930 2200 4 150   2 0 Grady Near Rush Springs
  04/19/1933 1900 15 880   2 25 Grady Agawam - NE of Chickasha
  05/21/1940 1630 5 200   0 4 Grady N and E of Verden
  01/26/1944   2     0 0 Grady Alex and "Hankins"
  05/02/1944 1900 6 100   0 0 Grady S and E of Tuttle
  05/15/1948 2130 2 1000   0 0 Grady Near Anadarko and Verden
  04/30/1949 1500 30 250   0 4 Comanche/ Grady NE part of Lawton - southern Grady county
Grady County, OK Tornadoes (1950-Present*)
# Date Time
(CST)
Path
Length
(miles)
Path
Width
(yards)
F-Scale Killed Injured County Path
1 04/05/1951 1322 0.2 100 F2 0 2 Grady Bridge Creek School District (7 NNW Blanchard)
2 06/06/1951 2350 4 450 F2 0 0 Grady Cox City
3 05/22/1952 2330 0.1 10 F1 0 0 Grady southern part of county
4 03/13/1953 1715 24 100 F2 0 1 Grady Rush Springs - 6.5 SW Blanchard
5 03/13/1953 1819 1 100 F3 1 8 Grady Bradley
6 04/14/1953 1850 16 440 F2 0 0 Canadian/ Grady 5 SW Yukon - 8 E Tuttle
7 06/19/1953 1730 6 880 F1 0 0 Grady 5 SW Chickasha - SW edge of Chickasha
8 11/18/1953 2130 0.3 10 F1 0 0 Grady 8 W Minco
9 01/05/1955 0500 0.1 10 F0 0 0 Grady Chickasha
10 05/25/1955 1800 0.1 10 F1 0 0 Grady near Rush Springs
11 05/26/1955 0230 0.1 10 F1 0 0 Grady near Chickasha
12 04/28/1956 1420 35 10 F1 0 0 Grady/ McClain/ Cleveland 5 S Chickasha - 3 E Norman
13 04/21/1958 1535 0.1 10 F0 0 0 Grady 10 N Verden
14 04/21/1958 1605 0.1 10 F0 0 0 Grady Just S of Chickasha
15 05/22/1959 0220 0.1 10 F2 0 0 Grady 5 W Minco
16 04/28/1960 1945 4 200 F2 0 1 Grady 2 S Pocassett
17 04/28/1960 1945 3 200 F2 0 0 Grady 2 NE Amber
18 04/28/1960 1945 4 200 F3 0 2 Grady 1.5 N- 3 ENE Pocassett
19 04/28/1960 1945 2 300 F2 0 0 Grady Pocassett
20 04/28/1960 2050 1.5 200 F3 0 1 Grady Tuttle
21 05/19/1960 1600 0.1 10 F1 0 0 Caddo/ Grady N of Verden - near Dutton
22 04/30/1961 1845 2 77 F3 0 2 Grady 2 N Minco
23 05/16/1961 2257 0.1 10 F0 0 0 Grady Near Verden
24 04/07/1965 2350 22 440 F2 0 2 Caddo/ Grady Anadarko - 3 W Amber
25 04/08/1965 0020 1 10 F2 0 0 Grady 3 S Tuttle
26 04/08/1965 0020 1 10 F2 0 0 Grady 4 S Tuttle
27 04/08/1965 0100 0.3 10 F1 0 0 Grady 4 S Tuttle
28 05/26/1965 0235 0.1 10 F1 0 0 Grady Minco
29 04/19/1968 1545 0.1 10 F1 0 0 Grady 5 NNW Blanchard
30 06/05/1968 1818 0.1 10 F0 0 0 Grady 3 SE Verden
31 04/26/1969 1700 10 10 F1 0 0 Grady Ninnekah - Tabler
32 05/03/1969 1400 0.1 10 F1 0 0 Grady Near Verden
33 04/29/1970 2225 171 250 F2 0 2 Jackson/ Kiowa/ Caddo/ Grady/ Canadian/ Oklahoma/ Logan/ Payne Near Olustee - 5 S Stillwater [tornado family. Not continuous path]
34 04/30/1970 0100 47 500 F2 0 6 Grady/ Canadian/ Oklahoma 4 NW Pocasset - Mustang - Oklahoma City - 2 W Arcadia
35 06/20/1970 1653 0.1 10 F0 0 0 Grady NW of Tuttle
36 06/18/1973 1900 4 50 F1 0 1 Grady S of Rush Springs
37 04/20/1974 1500 64 100 F3 0 3 Grady/ Canadian/ Oklahoma/ Lincoln SW of Minco - 2 SE Mustang - S Oklahoma City - Del City - Midlothian
38 03/02/1977 1630 5 100 F2 0 0 Grady 5 NE- 9 NE Alex
39 03/02/1977 1630 6 100 F1 0 0 Grady/ McClain Near Blanchard
40 05/20/1977 1543 3 90 F1 0 0 Grady Chickaska (near Airport)
41 04/30/1981 2000 32 10 F1 0 0 Caddo/ Grady near Gracemont - Anadarko - near Rush Springs
42 04/30/1981 2015 29 10 F2 1 4 Grady Near Minco - Chickasha - S of Rush Springs [not continuous]
43 03/03/1983 1300 0.1 20 F1 0 0 Grady 6 W Newcastle
44 05/13/1983 2245 0.1 50 F1 0 0 Grady 6 N Chickasha
45 06/28/1983 0045 0.1 10 F0 0 0 Grady ~4 S Rush Springs
46 03/13/1990 1644-1737 28 200 F2 0 1 Grady/ McClain/ Cleveland 1 W Bradley- Washington- Noble- 5 NE Noble
47 03/29/1993 2152-2202 5 33 F1 0 0 Grady/ McClain 4 E Alex- 3 W Criner
48 05/25/1997 1514-1524 3 73 F1 0 0 Grady 3 NE Tabler - 2.5 SSW Middleberg
49 10/04/1998 1754-1755 1.5 200 F2 0 0 Grady 9 WSW - 7.5 WSW Ninnekah
50 10/04/1998 1915-1921 5 80 F2 0 0 Grady/ McClain 4 NW Blanchard - 2 SSW Newcastle
51 05/03/1999 1646-1710 9 880 F3 0 4 Caddo/ Grady 2 WSW Laverty - 4 S Verden - 2.5 WNW Downtown Chickasha
52 05/03/1999 1707-1708 1 n/a F0 0 0 Grady 5 W Downtown Chickasha
53 05/03/1999 1712-1721 4 500 F2 0 4 Grady 2.5 NW Downtown Chichasha - Chickasha Airport (NW edge of Chicakasha) - 4 NNE Downtown Chickasha
54 05/03/1999 1726-1848 37 1430 F5 36 583 Grady/ McClain/ Cleveland/ Oklahoma 2 SSW Amber - far N Newcastle - SW Oklahoma City - N Moore - S Del City - W Midwest City
55 05/03/1999 1837-1840 2 300 F1 0 0 Grady 8 WSW - 6 WSW Minco
56 05/03/1999 1847-1900 4 60 F1 0 0 Grady 5 W - 4 NW Minco
57 05/03/1999 1855 0.1 50 F1 0 0 Grady 5 SW Minco
58 05/04/2001 1805-1806 0.2 25 F0 0 0 Grady 0.5 E Chickasha
59 05/04/2001 1820-1824 0.7 50 F0 0 0 Grady 2 NNE - 3 N Amber
60 05/09/2003 2017-2020 1.2 50 F0 0 0 Caddo/ Grady 1.4 NE - 2.5 ENE Cogar
61 05/08/2007 2154-2158 1.5 30 EF1 0 0 Grady 2.7 SW - 2.6 W Minco
62 08/18/2007 1944-1948 2 30 EF1 0 0 Grady 2.5 SSW Norge - 1.8 E Laverty
63 08/19/2007 0132-0138 7 75 EF1 0 0 Grady/ Canadian 1 ESE Minco - 1 N Union City
64 05/10/2010 1620-1627 6 700 EF1 0 0 Stephens/ Grady 3 NE Bray - 2.5 ESE Cox City
65 05/24/2011 1606-1701 33 880 EF4 1 48 Grady/ McClain/ Cleveland 2 S Chickasha - Oklahoma City (near SW 149th/Portland)
66 05/24/2011 1626-1705 23 880 EF4 0 61 Grady/ McClain 2 W Bradley - 1 W Goldsby
67 05/08/2013 1918 0.1 50 EF0 0 0 Grady 4 SE Minco
68 05/31/2013 1845 0.2 50 EF0 0 0 Grady 2 NNE Tuttle
69 05/06/2015 1533-1626 10 1500 EF3 0 0 Grady 4.5 E Amber - 4 NNE Bridge Creek
70 05/06/2015 1548 0.3 50 EF0 0 0 Grady 5 ENE Amber
71 05/06/2015 1849-1851 0.5 40 EF0 0 0 Grady 3 SE Tuttle
72 05/06/2015 1911-1921 4 200 EF0 0 0 Grady 4 ENE Tuttle - 2 NE Bridge Creek
73 05/23/2015 1612-1632 6 500 EF1 0 0 Grady 3 W - 4 NNE Pocasset
74 04/29/2016 1503-1522 12 1000 EF1 0 0 Grady 8 WSW - 4 ENE Ninnekah
75 05/31/2016 1628-1632 0.5 30 EF? 0 0 Grady 4 N Pocasset
76 05/31/2016 1628-1634 0.7 30 EF? 0 0 Grady 3 NW Pocasset
77 05/31/2016 1628-1635 0.7 30 EF? 0 0 Grady 4 W - 4 WNW Pocasset
78 05/02/2018 1855-1906 10 400 EF1 0 0 Grady 4 SSW Acme - 2 SSE Agawam
79 05/02/2018 1858-1906 6 100 EF1 0 0 Grady 4 WSW - 3 SSE Amber
80 05/02/2018 1905-1906 0.4 25 EF1 0 0 Grady 1 E Amber
81 04/21/2020 2228-2230 0.3 100 EF1 0 0 Comanche/ Grady 7 SSW Acme
 

Significant Tornadoes in Grady County

  Date Time
(CST)
Path
Length
(miles)
Path
Width
(yards)
F-Scale Killed Injured County Path
  03/13/1953 1819 1.0 100 F3 1 8 Grady Bradley

This tornado struck the town of Bradley, OK in Grady County at 6:19 pm CST, killing one person and injuring another eight people. Damages were estimated at $250,000.

  04/30/1981 2015 29 5 F2 1 4 Grady Near Minco - Chickasha - S of Rush Springs (* not a continuous track)

This tornado touched down near Minco, OK and moved south with an intermittent path to Chickasha, OK and Rush Springs, OK before lifting near Marlow, OK. Near Rush Springs, a four-month-old infant was killed and two adults were injured when the tornado destroyed a mobile home. Approximately $250,000 worth of damage occurred to a warehouse in Chickasha.

  05/03/1999 1726-1848 38 1760 F5 36 583 Grady/ McClain/ Cleveland/ Oklahoma 2 SSW Amber - far N Newcastle - SW Oklahoma City - N Moore-S Del City-W Midwest City

This violent, long-lived tornado was the most infamous of nearly 60 tornadoes that struck central Oklahoma during an unprecedented outbreak on this Monday afternoon and evening of May 3, 1999. The tornado was the 9th of 14 tornadoes produced by a supercell thunderstorm during the tornado outbreak. It formed around 5:26 pm CST about 2 miles south-southwest of Amber, OK, and grew rapidly to monstrous proportions as it headed to the northeast, paralleling U.S. Interstate Highway I-44. It moved across Bridge Creek and rural parts of northwest Newcastle, OK, causing continuous F4 and sporadic F5 damage. The tornado was estimated to be a mile in diameter in this area.

It weakened to F2/F3 intensity and narrowed to less than 1/4 mile in width as it crossed U.S. Interstate Highway I-44 and the Canadian River northeast of Newcastle and entered far south Oklahoma City, OK southwest of 149th Street and May Avenue around 6:12 pm CST. But it regained F4/F5 intensity and widened again to 1/2 to occasionally 3/4 mile as it moved northeast across south Oklahoma City, entering Moore, OK just west and north of 12th Street and Santa Fe Avenue.

Still moving northeast and still producing F4 and occasional F5 damage, it crossed U.S. Interstate Highway I-35 at the Shields Boulevard junction and moved into northeast Moore, at which point it weakened slightly to F3/sporadic F4 intensity and began a gradual turn to the left. This turn took the tornado more to the north-northeast as it crossed I-240 between Bryant Avenue and Sunnylane Road. It crossed southeastern Oklahoma City and entered Del City, OK as an F4 tornado, width 1/3 to 1/2 mile, along SE 44th Street between Sunnylane and Sooner Roads, and continued north-northeast to the northwestern part of Tinker Air Force Base, near SE 29th Street and Sooner Road.

Continuing to turn slowly, it moved almost due north but maintained F4 intensity as it crossed U.S. Interstate Highway I-40 just east of Sooner Road and continued north to between SE 15th Street and Reno Avenue. The tornado then weakened rapidly to F0/F1 intensity as it crossed Reno Avenue, and at 6:48 pm CST dissipated about 3 blocks north of Reno Avenue between Sooner Road and Air Depot Boulevard.

Totals from this tornado include 36 direct fatalities (12 in Bridge Creek, 1 in Newcastle, 9 in southern/southeastern Oklahoma City, 5 in Moore, 6 in Del City, and 3 in Midwest City), 5 indirect fatalities during or shortly after the tornado, 583 direct injuries, numerous indirect injuries (too many to count), 1800 homes destroyed, and 2500 homes damaged. The tornado was also the 100th tornado to strike the Oklahoma City area since 1890. Total damage was estimated at $1 billion.

  05/24/2011 1606-1701 33 880 EF4 1 48 Grady/ McClain/ Cleveland 2 S Chickasha - SW Oklahoma City (near SW 149th and Portland)

This tornado formed on the south side of Chickasha, OK in Grady County, quickly doing EF-2 damage. Mobile homes were damaged and destroyed, trees were uprooted or destroyed, outbuildings were destroyed, and many buildings lost significant portions of their roofs. One fatality occurred as a mobile home was destroyed in the south portion of Chickasha. As the tornado moved northeast of Chickasha, it gained significant strength, with several areas receiving EF-4 damage. Well-built homes were destroyed. Trees were debarked with only stumps remaining. Cars were thrown hundreds of feet. Almost continuous EF-3/occasional EF-4 damage occurred northeast until it crossed into McClain County, 1.5 miles south of OK State Highway 9. The tornado was probably at its strongest as it neared/crossed the Grady/McClain County line. Wind speeds there were estimated near 200 mph in this area.

Significant damage continued as the violent tornado moved over the McClain County border. This may have been the strongest portion of this tornado, with wind speeds near 200 mph. Well-built homes were destroyed, with some cleaned off of their foundation. A concrete dome home was severely damage, mainly by the flying debris. Trees were debarked or destroyed. Very little was left standing for the first few miles into McClain County. Fairly consistent EF-3, with brief periods of EF-4 damage occurred as the tornado approached and then crossed OK State Highway 9, near the OK State Highway 76 junction. The tornado began to weaken as it moved toward the Cleveland County border, with mainly trees and power poles/lines snapped.

The tornado continued into Cleveland County and where some minor tree/power pole/power line damage occurred. A few barns and outbuilding also sustained minor damage east of U.S. Interstate Highway I-44. The tornado dissipated just north of the Canadian River. The tornado traveled along a path length of 32 miles through three counties in just under an hour, Peak wind speeds were estimated just under 200 mph.

 

Records taken from the Storm Prediction Center archive data, "Storm Data", and data from the National Weather Service office in Norman. Data modified as described in NOAA Tech Memo NWS SR-209 (Speheger, D., 2001: "Corrections to the Historic Tornado Database").

Historic data, especially before 1950, are likely incomplete.