Abundant monsoonal moisture caused numerous thunderstorms across much of Southeast Arizona.

Dust Storm in UPPER GILA RIVER VALLEY, ARIZONA
From 19-JUL-07 16:25:00 to 19-JUL-07 16:40:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm near Safford produced a strong outflow resulting in a dust storm. The visibility dropped to about 100 feet.

Dust Storm in SOUTHEAST PINAL COUNTY, ARIZONA
From 19-JUL-07 20:30:00 to 19-JUL-07 21:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Outflow from thunderstorms in the Tucson area pushed northwest into Southeast Pinal County causing reduced visibilities due to blowing dust.  Visibilities were near zero along Interstate 10 between Red Rock and Eloy causing a traffic accident near Interstate 10 and Arizona 347.

Thunderstorm Wind in COCHISE, ARIZONA
From 19-JUL-07 18:02:00 to 19-JUL-07 18:15:00 (MST-7)
Location: ST DAVID
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large cottonwood tree was downed across State Highway 80 due to thunderstorms.

Hail in PIMA, ARIZONA
From 19-JUL-07 18:53:00 to 19-JUL-07 19:00:00 (MST-7)
Location: CONTINENTAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated one inch hail near Arivaca Junction.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 19:33:00 to 19-JUL-07 19:36:00 (MST-7)
Location: TUCSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An estimated gust to 60 mph was observed at the NWS office on the University of Arizona.  There was a recorded gust to 69 mph on the roof of the Atmospheric Sciences building.

Hail in SANTA CRUZ, ARIZONA
From 19-JUL-07 18:05:00 to 19-JUL-07 18:10:00 (MST-7)
Location: PATAGONIA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail 1.5 in diameter occurred in Patagonia due to an intense thunderstorm.

Hail in SANTA CRUZ, ARIZONA
From 19-JUL-07 18:24:00 to 19-JUL-07 18:30:00 (MST-7)
Location: CALABASAS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail 0.88 in diamter occurred in Rio Rico due to a strong thunderstorm.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 18:51:00 to 19-JUL-07 18:57:00 (MST-7)
Location: GREEN VLY
Magnitude: 52.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported an estimated wind gust to 60 mph in Green Valley.  On Abrego drive in Green Valley there were two downed trees and a huge pecan tree was uprooted near the entrance to La Posada off Continental Road.  In addition, five power poles were downed on Hawk Road east of Canoa Road in Green Valley.

Dust Storm in TUCSON METRO/MARANA/GREEN VALLEY, ARIZONA
From 19-JUL-07 19:15:00 to 19-JUL-07 20:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Strong outflow winds from a line of thunderstorms moving through the Tucson metro area dropped visibilities to less than one quarter of a mile.  Visibilities were near zero as the outflow pushed through Marana.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 19:35:00 to 19-JUL-07 19:38:00 (MST-7)
Location: FLECHA CAIDA ESTATES
Magnitude: 60.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed across Tanque Verde Road near the Pantano Wash.

Flash Flood in COCHISE, ARIZONA
From 19-JUL-07 18:23:00 to 19-JUL-07 18:45:00 (MST-7)
Location: BENSON
Flood cause: Heavy Rain
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Newspaper

Several homes were flooded in the Comstock neighborhood in Benson due to flash flooding.  A swift water rescue also took place at Interstate 10 and the Pomerene Road exit in Benson.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 19:22:00 to 19-JUL-07 19:25:00 (MST-7)
Location: VAIL JCT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The fire department official reported an estimated gust to 60 mph due to thunderstorms in Corona de Tucson.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 20:09:00 to 19-JUL-07 20:13:00 (MST-7)
Location: SILVER BELL
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter recorded a measured wind gust to 63 mph.

Thunderstorm Wind in PIMA, ARIZONA
From 19-JUL-07 19:50:00 to 19-JUL-07 19:55:00 (MST-7)
Location: TUCSON
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Power lines were knocked down along Miracle Mile Strip in Tucson.