Alert archive / Colorado / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Colorado, 2018
33 severe thunderstorm watches in 2018. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Severe Thunderstorm Watches
- 33
- Busiest month
- May11 severe thunderstorm watches
- Busiest day
- May 11, 20182 severe thunderstorm watches
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 1:41 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick | 5 hr |
| May 10, 6:59 PM MDT | Severe Thunderstorm Watch | SPC | Yuma | 9 hr |
| May 11, 2:02 PM MDT | Severe Thunderstorm Watch | SPC | Larimer, Weld | 7 hr |
| May 17, 2:37 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Prowers | 6 hr |
| May 17, 4:57 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick | 6 hr |
| May 18, 3:02 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 6 more | 7 hr |
| May 23, 1:31 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Morgan, Phillips, Sedgwick, Weld | 7 hr |
| May 24, 1:47 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson | 7 hr |
| May 27, 1:13 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 14 more | 7 hr |
| May 28, 2:01 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Crowley and 13 more | 7 hr |
| May 30, 2:56 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Las Animas | 7 hr |
| Jun 6, 4:46 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 3 more | 8 hr |
| Jun 18, 6:37 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Denver, Logan, Morgan, Washington and 1 more | 6 hr |
| Jun 18, 10:42 PM MDT | Severe Thunderstorm Watch | SPC | Yuma | 3 hr |
| Jun 19, 7:01 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Kiowa, Otero, Prowers and 1 more | 5 hr |
| Jun 22, 12:19 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 7 more | 6 hr |
| Jun 23, 2:20 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 4 more | 7 hr |
| Jun 24, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 7 more | 6 hr |
| Jun 30, 2:03 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Douglas, Elbert, El Paso, Lincoln and 6 more | 7 hr |
| Jun 30, 5:09 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Yuma | 7 hr |
| Jul 17, 3:09 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 3 more | 10 hr |
| Jul 23, 1:27 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Broomfield, Crowley, Custer, Douglas and 10 more | 8 hr |
| Jul 25, 1:22 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more | 6 hr |
| Jul 25, 4:29 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 5 more | 7 hr |
| Jul 26, 1:49 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Boulder, Broomfield, Cheyenne, Denver and 15 more | 7 hr |
| Jul 27, 3:43 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 5 hr |
| Jul 28, 5:40 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Logan, Phillips, Sedgwick, Yuma | 7 hr |
| Jul 29, 7:03 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Kiowa, Otero, Prowers | 6 hr |
| Aug 5, 12:06 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick | 5 hr |
| Aug 6, 12:59 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Custer, Douglas, Elbert and 10 more | 9 hr |
| Aug 6, 2:37 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Boulder, Broomfield, Denver, Jefferson and 5 more | 7 hr |
| Aug 7, 1:45 PM MDT | Severe Thunderstorm Watch | SPC | Bent, Crowley, Custer, Douglas, Elbert, El Paso and 7 more | 7 hr |
| Aug 18, 12:47 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, Elbert, El Paso and 8 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baca County14
- Crowley County14
- Logan County13
- Prowers County13
- Bent County13
- Cheyenne County13
- Otero County13
- Kiowa County12
- Kit Carson County12
- Weld County11
- El Paso County11
- Lincoln County11
- Phillips County10
- Sedgwick County10
- Yuma County10
- Las Animas County10
- Pueblo County10
- Morgan County10
- Washington County9
- Elbert County8
- Huerfano County7
- Adams County7
- Arapahoe County7
- Douglas County7
- Larimer County6
- Teller County6
- Broomfield County5
- Denver County5
- Jefferson County5
- Boulder County4
- Custer County3
- Fremont County3
- Park County2
- Clear Creek County1
- Gilpin County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.