Collin County weather alerts
There are no active weather alerts for Collin County, TX right now.
Since 2016 the National Weather Service has issued about 1,104 alerts that included Collin County, roughly 110 a year. The most common is the severe thunderstorm warning (301 from 2016 to 2025). The last tornado warning was issued on May 19, 2025. 56 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Collin County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Hunt County, Rockwall County, Dallas County, Fannin County.
Collin County alert history
Alert events that included Collin County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 301 | 10 | June 2, 2026 |
| Flood Advisory | 119 | 8 | October 1, 2026 |
| Flood Warning | 105 | 4 | June 24, 2026 |
| Severe Thunderstorm Watch | 105 | 7 | July 5, 2026 |
| Wind Advisory | 82 | 4 | October 16, 2026 |
| Dense Fog Advisory | 76 | 2 | November 1, 2026 |
| Heat Advisory | 63 | 12 | September 12, 2026 |
| Flash Flood Warning | 55 | 6 | June 19, 2026 |
| Flood Watch | 43 | 2 | September 30, 2026 |
| Tornado Watch | 41 | 5 | April 28, 2026 |
| Tornado Warning | 20 | 0 | May 19, 2025 |
| Extreme Heat Warning | 18 | 3 | August 23, 2026 |
| Winter Weather Advisory | 17 | 0 | February 18, 2025 |
| Freeze Warning | 14 | 2 | March 17, 2026 |
| Freeze Watch | 8 | 0 | November 10, 2025 |
| Cold Weather Advisory | 6 | 1 | January 31, 2026 |
| Winter Storm Warning | 6 | 1 | January 24, 2026 |
| Frost Advisory | 4 | 0 | April 7, 2025 |
| Red Flag Warning | 4 | 0 | March 14, 2025 |
| Winter Storm Watch | 4 | 1 | January 23, 2026 |
| Fire Weather Watch | 3 | 0 | March 14, 2025 |
| Extreme Heat Watch | 2 | 0 | August 13, 2019 |
| Extreme Cold Warning | 2 | 1 | January 25, 2026 |
| Extreme Cold Watch | 2 | 1 | January 25, 2026 |
| High Wind Warning | 2 | 0 | March 14, 2025 |
| Ice Storm Warning | 1 | 0 | February 1, 2023 |
| High Wind Watch | 1 | 0 | March 14, 2025 |
Tornado history in Collin County
56 tornadoes have been recorded in Collin County since 1950, killing 7 people and injuring 268. That ranks 58 of 254 counties in Texas. The most recent was on April 30, 2025 (rated EF0).
Strongest tornadoes in Collin County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 9, 2006 | F3 | Collin County | 9.3 mi | 300 yd | 3 | 10 |
| October 12, 1969 | F3 | Dallas County | 45.9 mi | 200 yd | 0 | 2 |
| October 4, 1959 | F3 | Dallas County | 27.6 mi | 67 yd | 0 | 5 |
| April 2, 1957 | F3 | Collin County | 10.7 mi | 33 yd | 0 | 4 |
| May 25, 2024 | EF3 | Collin County | 0.7 mi | 175 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 30, 2025 | EF0 | Denton County | 0.1 mi | 25 yd | 0 | 0 |
| May 25, 2024 | EF3 | Collin County | 0.7 mi | 175 yd | 0 | 0 |
| May 25, 2024 | EF1 | Collin County | 8.3 mi | 800 yd | 0 | 0 |
| March 14, 2024 | EF0 | Collin County | 0.2 mi | 15 yd | 0 | 0 |
| December 13, 2022 | EF2 | Collin County | 17.6 mi | 225 yd | 0 | 2 |
About Collin County
- Population: 1,254,658 (2024 estimate)
- State: Texas
- NOAA Weather Radio SAME code: 048085 (how to use it)
- Cities: Plano, Frisco, McKinney, Allen