Tornadoes in Colorado

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.

1. EF3, Prowers and Kiowa counties, ColoradoMarch 28, 20072 killed, 9 injured
2. F3, Sedgwick County, ColoradoJune 27, 19602 killed, 3 injured
3. EF3, Weld and Larimer counties, ColoradoMay 22, 20081 killed, 78 injured

1. EF3, Weld and Larimer counties, ColoradoMay 22, 2008EF3, 38.7 mi (62 km)
2. EF3, Prowers and Kiowa counties, ColoradoMarch 28, 2007EF3, 28.0 mi (45 km)
3. EF3, Washington and Yuma counties, ColoradoAugust 8, 2023EF3, 15.7 mi (25 km)
4. EF3, Prowers County, ColoradoJune 23, 2023EF3, 13.1 mi (21 km)
5. F3, Washington County, ColoradoJuly 21, 1993F3, 12.0 mi (19 km)
6. F3, Otero County, ColoradoOctober 20, 1953F3, 11.9 mi (19 km)
7. F3, Kit Carson County, ColoradoJuly 7, 1993F3, 9.0 mi (14 km)
8. F3, Washington County, ColoradoMay 10, 1975F3, 8.0 mi (13 km)
9. F3, Weld County, ColoradoMay 15, 1952F3, 7.4 mi (12 km)
10. F3, Lincoln County, ColoradoMay 31, 1999F3, 7.0 mi (11 km)
11. F3, Lincoln County, ColoradoJune 6, 1990F3, 7.0 mi (11 km)
12. F3, Elbert County, ColoradoJune 6, 1990F3, 7.0 mi (11 km)

1. F0, Kit Carson, Sherman, Cheyenne and Rawlins counties, Colorado and KansasMay 20, 195770.1 mi (113 km)
2. EF3, Weld and Larimer counties, ColoradoMay 22, 200838.7 mi (62 km)
3. F2, Crowley and Otero counties, ColoradoJune 18, 195129.9 mi (48 km)
4. EF3, Prowers and Kiowa counties, ColoradoMarch 28, 200728.0 mi (45 km)
5. F2, Morgan County, ColoradoSeptember 18, 198625.0 mi (40 km)
6. F2, Larimer and Weld counties, ColoradoJune 9, 199023.0 mi (37 km)
7. F1, Baca County, ColoradoMay 17, 196223.0 mi (37 km)
8. F1, Baca, Stanton and Morton counties, Colorado and KansasJune 26, 197822.9 mi (37 km)
9. Unrated, Las Animas County, ColoradoMay 29, 202122.8 mi (37 km)
10. F2, Cheyenne and Kiowa counties, ColoradoMay 10, 197521.9 mi (35 km)
11. F1, Sedgwick County, ColoradoJune 25, 195120.2 mi (33 km)
12. F0, Kiowa County, ColoradoOctober 11, 199720.0 mi (32 km)

1. EF3, Weld and Larimer counties, ColoradoMay 22, 2008$147 million
2. F2, El Paso County, ColoradoMay 28, 2001$8.0 million
3. F1, Arapahoe County, ColoradoAugust 29, 2002$6.0 million
4. EF3, Prowers and Kiowa counties, ColoradoMarch 28, 2007$4.0 million
5. F3, Lincoln County, ColoradoMay 31, 1999$4.0 million
6. F1, Logan County, ColoradoJune 9, 2004$1.9 million
7. EF3, Washington and Yuma counties, ColoradoAugust 8, 2023$1.0 million
8. F1, Bent County, ColoradoJune 20, 2004$1.0 million
9. F3, Logan County, ColoradoJuly 5, 2000$750,000
10. EF2, Weld County, ColoradoJune 7, 2021$531,000
11. EF1, Morgan County, ColoradoMay 10, 2023$500,000
12. EF2, Prowers County, ColoradoApril 27, 2012$500,000

1. June 21, 202336tornadoes
2. May 17, 200027tornadoes
3. May 28, 201820tornadoes
4. April 22, 201020tornadoes
5. June 4, 201518tornadoes
6. May 25, 201015tornadoes
7. May 30, 199615tornadoes
8. June 20, 199214tornadoes
9. July 21, 199313tornadoes
10. June 4, 197613tornadoes
11. July 3, 200712tornadoes
12. June 7, 199512tornadoes

A tornado is counted once for every county its path crossed, so these add up to more than 2,476. Each county has a page of its own: every tornado that crossed it, year by year.

Warnings in force in ColoradoForecast for your townThe live radar over Colorado

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.

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