A strong upper low system passing through the area helped generate convection in western Maricopa county in the afternoon of the 21st. Modest instability and shear was enough to generate isolated strong storms with multiple reports of funnel clouds, hail, and heavy rain. There were two reports of funnel clouds over far western Maricopa County near the county border, one of which was along Interstate 10 just west of the county line. On the southwest side of Phoenix, one especially strong storm became severe and strengthened into a supercell. The storm developed a wall cloud and produced heavy rain as well as several reports of hail at least one inch in diameter.. Hail was reported in communities such as Buckeye, Avondale and Goodyear.

Funnel Cloud in MARICOPA, ARIZONA
From 21-NOV-19 13:05:00 to 21-NOV-19 13:05:00 (MST-7)
Location: TONOPAH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A strong thunderstorm developed across the far western portion of Maricopa County during the early afternoon hours on November 21st. In addition to the typical thunderstorm hazards including wind and heavy rain, the storm managed to produce a funnel cloud at about 1305MST. The funnel cloud was observed by a motorist on Interstate 10 about 10 miles to the west of the town of Tonopah; the  motorist also took video of the funnel which was located just north of the interstate. The storm had a history of producing funnel clouds; about one half hour earlier the storm generated another funnel along the interstate and just west of the county line in far eastern La Paz County. Although no damage was produced by the funnel, it was still noteworthy as funnel clouds are rare across the deserts of southern Arizona.

Hail in MARICOPA, ARIZONA
From 21-NOV-19 15:20:00 to 21-NOV-19 15:20:00 (MST-7)
Location: GOODYEAR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across western portions of the greater Phoenix area during the afternoon hours on November 21st. One of the stronger storms produced large hail with some of the stones reaching a diameter of one inch. There was a public report on social media that mentioned hailstones one inch in diameter near the Goodyear airport. There were no reports of damage at the airport due to the large stones.

Hail in MARICOPA, ARIZONA
From 21-NOV-19 14:52:00 to 21-NOV-19 14:52:00 (MST-7)
Location: PERRYVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across the western portion of the greater Phoenix area during the afternoon hours on November 21st. One of the especially strong storms produced large hail in excess of one inch in diameter. There was a public report of hailstones up to 1.25 inches in diameter as measured by a ruler. The large hail fell in the Buckeye Valley, near the intersection of Lower Buckeye Road and Tuthill road. The stones were pictured on social media; no damage was reported due to the large hail.

Hail in MARICOPA, ARIZONA
From 21-NOV-19 14:48:00 to 21-NOV-19 14:48:00 (MST-7)
Location: PERRYVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across the western portion of the greater Phoenix area during the afternoon hours on November 21st, and they affected areas around the community of Goodyear. One of the especially strong storms produced large hail. According to a report from the public, half dollar sized hailstones, with diameters reaching 1.25 inches, fell about 4 miles southwest of Goodyear and near the intersection of Broadway Road and Perryville Road. No damage was reported due to the large hail.

Hail in MARICOPA, ARIZONA
From 21-NOV-19 14:50:00 to 21-NOV-19 15:27:00 (MST-7)
Location: GOODYEAR ARPT
Magnitude: 1.25 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A low-topped right-moving supercell developed in the Buckeye area of southwest Phoenix during the afternoon on November 21st. The storm produced multiple reports of hail up to 1.25 inches in diameter from east Buckeye to the Goodyear Airport. The hail led to some minor vehicle damage. Hail also accumulated in this area, enough to cover the ground, which some kids took advantage of and broke out their snow sleds. There was a public report of the large hail in the town of Goodyear; at 1527MST half dollar sized hail was observed in the Wildflower neighborhood. A bit earlier, at 1450MST, another public report 1 mile north of Goodyear mentioned that several several quarter sized hailstones fell at the Incito School. In addition to the hail, this storm also developed a rugged wall cloud, which was observed from the NWS Phoenix office.

Funnel Cloud in LA PAZ, ARIZONA
From 21-NOV-19 12:25:00 to 21-NOV-19 12:25:00 (MST-7)
Location: WENDEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A strong thunderstorm developed near the La Paz and Maricopa county border during the afternoon on November 21st.  Multiple social and broadcast media reports, with photos and video, of this storm depicted a cold air funnel near mile markers 63-64 on I-10. While there was no damage associated with the funnel cloud, the rarity of the funnel made it especially noteworthy and generated significant media interest.