Tornadoes · United States · Texas

Tornadoes in Grayson County, Texas

72 tornadoes have crossed Grayson County since 1950, 27th of the 254 counties in Texas with a tornado on record, an average of one every 1.1 years. They have killed 5 people and injured 74. None was rated F4 or above.

The rating scale

Tracks are drawn in the color of the rating. The United States rated tornadoes on Ted Fujita’s F scale until 31 January 2007 and on the Enhanced Fujita scale after it. Both run from 0 to 5, and both rate the damage rather than measure the wind: the speeds are what that damage is taken to imply.

  1. F0 / EF040 to 72 mph on the F scale, 65 to 85 mph on the EF scale

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F1 / EF173 to 112 mph on the F scale, 86 to 110 mph on the EF scale

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2 / EF2113 to 157 mph on the F scale, 111 to 135 mph on the EF scale

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3 / EF3158 to 206 mph on the F scale, 136 to 165 mph on the EF scale

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4 / EF4207 to 260 mph on the F scale, 166 to 200 mph on the EF scale

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5 / EF5261 to 318 mph on the F scale, over 200 mph on the EF scale

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Now

Tornadoes
72
Deaths
5
Injuries
74
F4 and above
0
Worst on record
F3, May 9, 2006

The deadliest in Grayson County

  1. F3, Collin and Grayson counties, TexasMay 9, 20063 killed, 10 injured
  2. F3, Grayson and Fannin counties, TexasApril 6, 19551 killed, 27 injured
  3. EF2, Marshall and Grayson counties, Texas and OklahomaMarch 21, 20221 killed, 11 injured

The strongest

  1. F3, Grayson and Fannin counties, TexasApril 6, 1955F3, 30.2 mi (49 km)
  2. F3, Collin and Grayson counties, TexasApril 2, 1957F3, 10.7 mi (17 km)
  3. F3, Collin and Grayson counties, TexasMay 9, 2006F3, 9.3 mi (15 km)
  4. F3, Grayson County, TexasMarch 10, 1973F3, 6.8 mi (11 km)
  5. F3, Grayson County, TexasMarch 12, 1971F3, 5.2 mi (8 km)
  6. F3, Grayson County, TexasMarch 12, 1971F3, 5.1 mi (8 km)
  7. F3, Grayson County, TexasMarch 12, 1971F3, 5.1 mi (8 km)
  8. F3, Grayson County, TexasMay 14, 1974F3, 2.0 mi (3 km)
  9. F3, Grayson County, TexasApril 18, 1957F3, 1.0 mi (2 km)
  10. F2, Denton and Grayson counties, TexasApril 6, 1955F2, 37.9 mi (61 km)

Every year with a tornado

The 34 years of the 76 in the record with a tornado in Grayson County. Each year links to every tornado in Texas that year.

YearTornadoesDeathsInjuriesStrongest
20251EF1
20221111EF2
201635EF0
20153EF1
200834EF2
20064310F3
199721F0
19964F0
19951F0
19943F0
19921F0
19911F1
19841F0
19831F0
19823F1
198121F2
19792F1
19771F0
19761F0
19753F0
19742F3
197313F3
197161F3
19701F2
19651F2
19631F1
19622F1
196023F2
19591F2
19581F1
195756F3
19553128F3
19543F1
195221F2

Every tornado that crossed Grayson County

72 tornadoes, newest first.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 8, 20259:39 PM CDTEF1Grayson4.0400$50,000
March 21, 20226:11 PM CDTEF2Marshall to OK5.1200111$500,000
April 26, 201610:11 PM CDTEF0Grayson6.075$80,000
April 26, 201610:00 PM CDTEF0Grayson2.41505$450,000
April 26, 20169:22 PM CDTEF0Grayson0.280$200,000
May 25, 20152:25 PM CDTEF0Grayson1.730$20,000
May 20, 20152:35 AM CDTEF0Grayson0.330$80,000
May 10, 20154:08 PM CDTEF1Grayson2.6100$50,000
December 8, 200810:43 PM CSTEF2Grayson3.61253$750,000
December 8, 200810:22 PM CSTEF1Grayson10.62001$400,000
April 9, 20089:20 PM CDTEF0Grayson1.350
May 9, 200610:37 PM CDTF3Collin9.3300310$1.5 million
May 9, 20069:10 PM CDTF0Grayson0.125
March 30, 20068:36 PM CSTF0Grayson0.110$10,000
March 30, 20068:30 PM CSTF0Grayson0.115
October 25, 199712:52 PM CDTF0Grayson0.5401$300,000
May 26, 199711:45 PM CDTF0Grayson0.123
April 21, 199611:40 PM CDTF0Grayson2.030$2,000
April 21, 199610:58 PM CDTF0Grayson2.030$10,000
April 21, 199610:07 PM CDTF0Grayson0.120$2,000
April 21, 19969:33 PM CDTF0Grayson1.025$10,000
April 29, 19957:35 PM CDTF0Grayson0.110
April 26, 19945:15 PM CDTF0Grayson0.110
April 26, 19944:40 PM CDTF0Grayson0.110
April 26, 19944:30 PM CDTF0Grayson0.110
November 23, 19922:50 PM CSTF0Grayson0.210$5,000 to $50,000
April 28, 19912:30 PM CDTF1Grayson0.210$50,000 to $500,000
April 20, 19846:15 PM CSTF0Grayson0.510under $50
April 13, 19838:30 AM CSTF0Grayson0.120$5,000 to $50,000
November 22, 19824:25 PM CSTF1Grayson6.073$5,000 to $50,000
November 22, 19824:10 PM CSTF1Grayson2.050$500 to $5,000
June 15, 19828:30 PM CDTF0Grayson0.550under $50
October 16, 19813:55 PM CDTF1Grayson0.110
March 17, 19817:30 PM CSTF2Grayson1.0731$50,000 to $500,000
July 10, 19791:00 AM CDTF0Grayson0.110
April 11, 19792:06 AM CSTF1Grayson0.110
April 18, 19774:00 PM CSTF0Grayson0.110
April 17, 19766:45 PM CSTF0Grayson0.110
March 28, 19751:30 AM CDTF0Grayson0.110
March 28, 19751:10 AM CDTF0Grayson0.110
March 27, 197511:50 PM CDTF0Grayson0.110
October 30, 19744:00 PM CSTF2Grayson0.110$5,000 to $50,000
May 14, 19747:10 PM CDTF3Grayson2.033
March 10, 19737:00 AM CSTF3Grayson6.81003
December 14, 19716:00 PM CSTF2Grayson0.6201$50,000 to $500,000
March 12, 19718:00 PM CSTF1Grayson0.120
March 12, 19715:30 PM CSTF3Grayson5.1440
March 12, 19715:30 PM CSTF3Grayson5.1440
March 12, 19715:30 PM CSTF1Grayson0.110
March 12, 19715:15 PM CSTF3Grayson5.2440
June 23, 19702:00 PM CDTF2Grayson0.167$500 to $5,000
August 6, 19659:45 PM GMT-5F2Grayson0.517$500 to $5,000
July 29, 19636:30 PM GMT-5F1Grayson0.5100
March 24, 19621:30 PM GMT-6F1Grayson2.033$500 to $5,000
March 24, 19621:30 PM GMT-6F0Grayson0.133$500 to $5,000
May 20, 19605:45 AM GMT-5F2Grayson2.767$50,000 to $500,000
January 14, 19606:35 AM GMT-6F1Grayson0.2173$50,000 to $500,000
July 13, 19592:45 PM GMT-5F2Grayson1.013$500 to $5,000
November 17, 19589:15 AM GMT-6F1Grayson4.333$500 to $5,000
April 24, 19574:00 PM GMT-6F0Grayson0.110under $50
April 18, 19574:20 PM GMT-6F3Grayson1.017$500 to $5,000
April 2, 19574:20 PM GMT-6F3Collin10.7334$50,000 to $500,000
April 2, 19574:00 PM GMT-6F0Grayson0.110$5,000 to $50,000
April 2, 19573:00 PM GMT-6F2Grayson0.1102$5,000 to $50,000
April 6, 19555:50 AM GMT-6F2Grayson5.210
April 6, 19554:30 AM GMT-6F2Denton37.9101$5,000 to $50,000
April 6, 19552:30 AM GMT-6F3Grayson30.267127$500,000 to $5 million
September 29, 19543:00 PM GMT-6F1Grayson1.017
September 29, 19543:00 PM GMT-6F0Grayson0.510
September 29, 19543:00 PM GMT-6F0Grayson0.510$500 to $5,000
June 5, 19521:30 PM GMT-5F1Grayson13.833under $50
April 3, 19526:00 PM GMT-6F2Grayson4.92001$5,000 to $50,000

Nearby

Warnings in force in Grayson CountyThe forecast for Grayson CountyThe live radar over Grayson CountyEvery county in Texas

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.