Alert archive / Arizona / Mesoscale Discussions
Mesoscale Discussions in Arizona, 2018
20 mesoscale discussions 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Mesoscale Discussions
- 20
- Busiest month
- August8 mesoscale discussions
- Busiest day
- July 9, 20182 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 |
|---|---|---|---|---|
| Jul 9, 1:51 PM MST | Mesoscale Discussion | SPC | Gila, Graham, Maricopa, Pima, Pinal, Yavapai | 2 hr |
| Jul 9, 4:57 PM MST | Mesoscale Discussion | SPC | La Paz, Maricopa, Yuma | 93 min |
| Jul 18, 12:44 PM MST | Mesoscale Discussion | SPC | Coconino, Mohave, Yavapai | 91 min |
| Jul 26, 3:57 PM MST | Mesoscale Discussion | SPC | Gila, Graham, Yavapai | 63 min |
| Jul 28, 4:09 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Maricopa, Pima, Pinal, Santa Cruz and 2 more | 66 min |
| Jul 29, 1:34 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Maricopa, Pima, Pinal, Santa Cruz and 1 more | 116 min |
| Aug 8, 4:07 PM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Pinal, Santa Cruz, Yavapai | 2 hr |
| Aug 9, 1:53 PM MST | Mesoscale Discussion | SPC | Yavapai | 2 hr |
| Aug 9, 5:11 PM MST | Mesoscale Discussion | SPC | La Paz, Maricopa, Yavapai | 3 hr |
| Aug 11, 3:20 PM MST | Mesoscale Discussion | SPC | Mohave, Yavapai | 2 hr |
| Aug 12, 3:15 PM MST | Mesoscale Discussion | SPC | Gila, La Paz, Maricopa, Pinal, Yavapai | 90 min |
| Aug 12, 6:00 PM MST | Mesoscale Discussion | SPC | Maricopa, Pinal, Yuma | 2 hr |
| Aug 12, 8:18 PM MST | Mesoscale Discussion | SPC | La Paz, Maricopa, Yuma | 57 min |
| Aug 14, 6:00 PM MST | Mesoscale Discussion | SPC | Gila, Graham, Maricopa, Pima, Pinal, Yavapai | 90 min |
| Sep 2, 5:28 PM MST | Mesoscale Discussion | SPC | Pinal | 92 min |
| Oct 3, 8:35 PM MST | Mesoscale Discussion | SPC | La Paz, Mohave | 2 hr |
| Oct 21, 1:26 PM MST | Mesoscale Discussion | SPC | Pima, Santa Cruz | 94 min |
| Oct 22, 1:12 PM MST | Mesoscale Discussion | SPC | Cochise, Graham, Greenlee, Pinal, Santa Cruz | 63 min |
| Oct 22, 1:37 PM MST | Mesoscale Discussion | SPC | Navajo | 113 min |
| Oct 23, 11:05 AM MST | Mesoscale Discussion | SPC | Cochise, Gila, Graham, Pima, Pinal, Santa Cruz | 115 min |
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 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.