Alert archive / Arizona / Mesoscale Discussions
Mesoscale Discussions in Arizona, 2020
9 mesoscale discussions in 2020. 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 2020. Tap one for its archive.
- Mesoscale Discussions
- 9
- Busiest month
- August7 mesoscale discussions
- Busiest day
- March 12, 20201 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 |
|---|---|---|---|---|
| Mar 12, 4:06 PM MST | Mesoscale Discussion | SPC | La Paz, Maricopa, Yuma | 84 min |
| Mar 18, 1:17 PM MST | Mesoscale Discussion | SPC | Maricopa, Pima, Pinal, Yuma | 2 hr |
| Aug 15, 1:43 PM MST | Mesoscale Discussion | SPC | Cochise, Santa Cruz | 2 hr |
| Aug 16, 1:21 PM MST | Mesoscale Discussion | SPC | Cochise, Graham, Greenlee, Maricopa, Pima, Pinal and 1 more | 114 min |
| Aug 17, 4:48 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Maricopa, Pima, Pinal and 2 more | 87 min |
| Aug 18, 1:49 PM MST | Mesoscale Discussion | SPC | Gila, Graham, La Paz, Maricopa, Pinal, Yavapai | 116 min |
| Aug 20, 3:04 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Greenlee, Pinal, Santa Cruz and 1 more | 56 min |
| Aug 22, 2:45 PM MST | Mesoscale Discussion | SPC | Mohave | 90 min |
| Aug 25, 1:00 PM MST | Mesoscale Discussion | SPC | Gila, Maricopa, Pima, Pinal, Yavapai | 3 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 archive20192021
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.