Alert archive / Arizona / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Arizona, 2021

5 severe thunderstorm watches in 2021. 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 2021. Tap one for its archive.

Severe Thunderstorm Watches
5
Busiest month
July2 severe thunderstorm watches
Busiest day
July 10, 20211 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.

IssuedProductOfficeCountiesLasted
Jul 10, 4:52 PM MSTSevere Thunderstorm WatchSPCGila, Maricopa, Pima, Pinal7 hr
Jul 11, 1:23 PM MSTSevere Thunderstorm WatchSPCCochise, Graham, Greenlee8 hr
Aug 13, 6:55 PM MSTSevere Thunderstorm WatchSPCCochise, Gila, La Paz, Maricopa, Pima, Pinal and 3 more8 hr
Aug 16, 3:54 PM MSTSevere Thunderstorm WatchSPCCochise, Gila, Graham, Maricopa, Pima, Pinal and 2 more10 hr
Oct 5, 11:46 AM MSTSevere Thunderstorm WatchSPCCoconino, Gila, Graham, La Paz, Maricopa, Mohave and 4 more8 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.

  1. July 10, 20211severe thunderstorm watches
  2. July 11, 20211severe thunderstorm watches
  3. August 14, 20211severe thunderstorm watches
  4. August 16, 20211severe thunderstorm watches
  5. October 5, 20211severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.