Every day with large hail, damaging wind or a tornado within 8 miles of central Flagstaff since 2021, with each storm's reports on a map. The largest hail was 1.75 inches (golf ball size) on October 21, 2026.
1.50 in hail (ping pong ball)5.6 mi NNW of central Flagstaff5.1 mi NNW of Flagstaff · Coconino County · Public
A report from Facebook showed that 1 1/2 inch hail fell two miles east-northeast of Fort Valley.
What the National Weather Service wrote
An unusually moist pattern for mid-May was in place over Arizona with precipitable water values around 200-250% of normal. This allowed for the development of strong to severe thunderstorms. Two thunderstorms produced severe hail on May 17 in different counties.
Sources: NCEI Storm Events Database (reviewed) and NWS Local Storm Reports (archived by the Iowa Environmental Mesonet) (preliminary). Weather Evidence is independent and not affiliated with NOAA or the National Weather Service. Storm reports show what was reported at a place and time; they do not establish conditions at any one property.