An upper trough moved across Chihuahua and Sonora helping to strengthen thunderstorms near the international border. Abundant moisture of nearly 2 inches of precipitable water led to thunderstorms that produced very heavy rain and flash flooding over southern Cochise County. A few storms also produced damaging winds and large hail as they moved northeast to southwest. The hardest hit area was from Sierra Vista to Palominas.

Hail in SANTA CRUZ, ARIZONA
From 09-JUL-13 15:59:00 to 09-JUL-13 16:20:00 (MST-7)
Location: (OLS) NOGALES INTL ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced large hail as it tracked westward across rural portions of southern Santa Cruz County. The largest hail reported by spotters was the size of golf balls at Kino Springs. No damage was reported.

Thunderstorm Wind in COCHISE, ARIZONA
From 09-JUL-13 19:18:00 to 09-JUL-13 19:28:00 (MST-7)
Location: ARIZONA SUNSITES
Magnitude: 70.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm winds knocked over irrigation sprinklers, destroyed a barn, tore roofs off several other buildings, including a business in the Pearce-Sunsites area. The damaging winds also downed trees and power poles and blew a semi-tractor trailer onto its side.

Hail in COCHISE, ARIZONA
From 09-JUL-13 18:15:00 to 09-JUL-13 18:15:00 (MST-7)
Location: PALOMINAS
Magnitude: 1.00 
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Broadcast Media

A vehicle windshield was broken by large hail near Kings Ranch Road.

Thunderstorm Wind in SANTA CRUZ, ARIZONA
From 09-JUL-13 16:00:00 to 09-JUL-13 16:00:00 (MST-7)
Location: (OLS) NOGALES INTL ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust to 58 mph was measured at the Nogales International Airport.

Hail in COCHISE, ARIZONA
From 09-JUL-13 17:50:00 to 09-JUL-13 17:50:00 (MST-7)
Location: PALOMINAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters reported hail up to the size of quarters in Palominas.

Thunderstorm Wind in COCHISE, ARIZONA
From 09-JUL-13 21:51:00 to 09-JUL-13 22:05:00 (MST-7)
Location: (FHU)FT HUACHUCA AFB
Magnitude: 71.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm winds downed several trees and power poles at Fort Huachuca and in Sierra Vista. In addition, several homes sustained roof damage and one had the roof completely blown off. A wind gust to 82 mph was measured by the Libby Field ASOS.

Flash Flood in COCHISE, ARIZONA
From 09-JUL-13 18:45:00 to 09-JUL-13 22:50:00 (MST-7)
Location: BLEDSOE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Two to five inches of rain fell along Highway 92 between Sierra Vista and Bisbee.  Some areas received up to 7 inches of rain over a 3 hour period.  Vehicles became stranded on roadways in water up to 3 feet deep, necessitating several swift water rescues. Several roads were closed, including Highway 92, which was shut down for about 90 minutes.  Also, a large concrete culvert under a private road collapsed near Palominas.  Several residents were isolated due to the collapse.