Widespread life-threatening flash and urban flooding will continue to pose a significant threat to life and property in south-central Texas. Catastrophic fiver flooding, with rapid rises on small streams, arroyos, and typically dry washes, is expected. Monsoonal showers persist across the Great Basin and Southwest with greatest flash flooding in southern Arizona. Read More >
Denver/Boulder, CO
Weather Forecast Office
History of Colorado Tornadoes
(1950-2024)
The map below shows a history of tornadoes, across Colorado from 1950 through 2024, from the SPC database. The F Scale was replaced by the EF scale in 2007. Further details on each tornado can be accessed by clicking on the map. Since 1950, only one tornado has been classified as an F4, which was in Baca county on May 15th, 1977.
| EF/F Scale Tornadoes (1950 to 2024) |
# |
| Unknown | 154 |
| 0 | 1546 |
| 1 | 599 |
| 2 | 127 |
| 3 | 25 |
| 4 | 1 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Denver/Boulder, CO
325 Broadway
Boulder, CO 80305-3328
303-494-3210 for a recording call 303-494-4221
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