Storm near Glendale
Sunday, July 21, 2024
- Largest hail
- —none reported
- Strongest wind
- —no reading
- Tornadoes
- 0none reported
- Reports
- 2within 8 mi
2 reports
- 40 mph gust (estimated)6.1 mi ENE of central Glendale1.7 mi SW of Phoenix Turf Arpt · Maricopa County · Public
Minor wind damage occurred in an apartment complex located in the area of North 19th Avenue and West Thunderbird Rd in Phoenix. All the damage occurred during different time periods and it included a couple of shingles ripped from a roof at 3:55 pm MST, an eucalyptus branch falling down at 4:23pm MST and a part of a carport falling down at 5:32pm. Peak wind gusts were estimated at around 40 mph based on nearby observations. No injuries were reported.
- 45 mph gust (estimated)7.3 mi SSW of central Glendale1.0 mi S of West End · Maricopa County · Public
Downed tree in the area of 87th Avenue and Flower Street in Glendale. Peak wind gusts were estimated up to 45 mph based on nearby surface observations. No injuries were reported.
Also hit that day: Phoenix, AZ, Peoria, AZ
What the National Weather Service wrote
With the subtropical high pressure centered near Las Vegas, Nevada, the overall steering flow was from the north to northeast. Strong daytime heating in combination with PWAT values of 1.5+ inches resulted in MLCAPE values in excess of 1000 J/KG and DCAPE values in excess of 1500 J/KG. In addition, in the upper-levels, there was a disturbance that helped with the vertical ascent. As a result, the environment was primed for the development of strong to severe thunderstorms. Strong thunderstorm activity developed across the Mogollon Rim during the late morning into the early afternoon hours and was steered southwestward towards south-central AZ. A deep, long traveling outflow boundary developed and surged well ahead of the activity and traversed the entire Phoenix metro area with strong winds as well as areas of blowing dust during the mid to late afternoon hours. The outflow boundary as it continued to migrate southward sparked additional thunderstorm activity across portions of northwest Pinal and southwest Maricopa Counties.