Alert archive / Arizona / Mesoscale Discussions

Mesoscale Discussions in Arizona, 2023

21 mesoscale discussions in 2023. 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 2023. Tap one for its archive.

Mesoscale Discussions
21
Busiest month
August7 mesoscale discussions
Busiest day
August 18, 20232 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.

IssuedProductOfficeCountiesLasted
Jan 1, 1:47 PM MSTMesoscale DiscussionSPCMaricopa, Pima2 hr
Feb 22, 8:26 AM MSTMesoscale DiscussionSPCApache, Navajo4 hr
Mar 15, 3:23 PM MSTMesoscale DiscussionSPCLa Paz, Mohave3 hr
Jul 17, 1:45 PM MSTMesoscale DiscussionSPCCochise, Gila, Graham, Pima, Pinal, Santa Cruz2 hr
Jul 23, 7:41 PM MSTMesoscale DiscussionSPCPima64 min
Jul 28, 4:37 PM MSTMesoscale DiscussionSPCPinal, Santa Cruz83 min
Jul 29, 6:19 PM MSTMesoscale DiscussionSPCPima, Pinal, Santa Cruz56 min
Jul 30, 5:15 PM MSTMesoscale DiscussionSPCMaricopa, Pima, Pinal90 min
Aug 18, 1:24 PM MSTMesoscale DiscussionSPCMohave96 min
Aug 18, 3:38 PM MSTMesoscale DiscussionSPCGila, Maricopa, Pima, Pinal, Santa Cruz3 hr
Aug 20, 12:16 PM MSTMesoscale DiscussionSPCCoconino, Gila, Graham, Pinal, Yavapai119 min
Aug 21, 12:47 PM MSTMesoscale DiscussionSPCCochise, Gila, Graham, Pinal, Santa Cruz2 hr
Aug 21, 12:58 PM MSTMesoscale DiscussionSPCCochise, Gila, Graham, Pinal, Santa Cruz3 hr
Aug 31, 4:23 PM MSTMesoscale DiscussionSPCPima, Pinal2 hr
Aug 31, 4:42 PM MSTMesoscale DiscussionSPCMohave2 hr
Aug 31, 7:42 PM MSTMesoscale DiscussionSPCMaricopa3 hr
Sep 1, 12:31 PM MSTMesoscale DiscussionSPCLa Paz, Yuma2 hr
Sep 12, 2:28 PM MSTMesoscale DiscussionSPCCochise, Graham, Greenlee, Pima, Pinal, Santa Cruz92 min
Sep 13, 7:02 AM MSTMesoscale DiscussionSPCGila, Graham, Maricopa, Pinal118 min
Sep 13, 3:22 PM MSTMesoscale DiscussionSPCYavapai113 min
Dec 22, 1:31 PM MSTMesoscale DiscussionSPCYuma119 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.

  1. August 18, 20232mesoscale discussions
  2. August 21, 20232mesoscale discussions
  3. August 31, 20232mesoscale discussions
  4. September 1, 20232mesoscale discussions
  5. September 13, 20232mesoscale discussions
  6. January 1, 20231mesoscale discussions
  7. February 22, 20231mesoscale discussions
  8. March 15, 20231mesoscale discussions
  9. July 17, 20231mesoscale discussions
  10. July 24, 20231mesoscale discussions
  11. July 28, 20231mesoscale discussions
  12. July 30, 20231mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.