Alert archive / Arizona / Mesoscale Discussions
Mesoscale Discussions in Arizona, 2025
20 mesoscale discussions in 2025. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Mesoscale Discussions
- 20
- Busiest month
- September11 mesoscale discussions
- Busiest day
- September 26, 20254 mesoscale discussions
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 |
|---|---|---|---|---|
| Jun 5, 12:06 PM MST | Mesoscale Discussion | SPC | Coconino, Mohave | 2 hr |
| Jul 13, 1:38 PM MST | Mesoscale Discussion | SPC | Cochise, Graham, Greenlee, Santa Cruz | 3 hr |
| Jul 13, 5:34 PM MST | Mesoscale Discussion | SPC | Cochise, Santa Cruz | 116 min |
| Jul 15, 5:39 PM MST | Mesoscale Discussion | SPC | Cochise, Pima | 2 hr |
| Aug 15, 6:59 PM MST | Mesoscale Discussion | SPC | Cochise, Maricopa, Pima, Pinal, Santa Cruz | 2 hr |
| Aug 21, 2:51 PM MST | Mesoscale Discussion | SPC | Gila, Graham, Maricopa, Pima, Pinal | 2 hr |
| Aug 25, 12:37 PM MST | Mesoscale Discussion | SPC | Cochise, Pima, Pinal, Santa Cruz | 113 min |
| Sep 1, 4:43 PM MST | Mesoscale Discussion | SPC | Gila, Pinal | 2 hr |
| Sep 12, 8:16 AM MST | Mesoscale Discussion | SPC | Apache, Graham, Greenlee | 2 hr |
| Sep 12, 12:02 PM MST | Mesoscale Discussion | SPC | Cochise, Graham, Greenlee, Santa Cruz | 2 hr |
| Sep 13, 12:00 PM MST | Mesoscale Discussion | SPC | Cochise | 3 hr |
| Sep 18, 11:48 AM MST | Mesoscale Discussion | SPC | La Paz, Yuma | 2 hr |
| Sep 25, 12:25 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Pinal, Santa Cruz | 2 hr |
| Sep 26, 9:46 AM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Maricopa, Pima, Pinal and 1 more | 119 min |
| Sep 26, 11:40 AM MST | Mesoscale Discussion | SPC | Graham, Maricopa, Pinal | 65 min |
| Sep 26, 1:34 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Maricopa, Pima, Pinal and 2 more | 86 min |
| Sep 26, 3:00 PM MST | Mesoscale Discussion | SPC | Pima, Pinal | 2 hr |
| Sep 26, 5:35 PM MST | Mesoscale Discussion | SPC | Pinal | 115 min |
| Oct 11, 3:21 PM MST | Mesoscale Discussion | SPC | Cochise, Graham, Greenlee, Pinal, Santa Cruz | 114 min |
| Oct 13, 12:41 PM MST | Mesoscale Discussion | SPC | Gila, Maricopa, Pinal, Yavapai | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.