Moderately high atmospheric moisture with slow-moving thunderstorms brought heavy rain and isolated severe thunderstorms from the 19th through the 21st. Extensive damage from flash floods and debris flows was reported in Douglas County and Carson City on the 20th. In addition, a large dust storm occurred on the 20th.

Flash Flood in WASHOE, NEVADA
From 20-JUL-14 14:50:00 to 20-JUL-14 14:50:00 (PST-8)
Location: (RNO)CANNON ARPT REN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Pictures and videos corroborated a rapid increase in water levels which threatened building damage and caused some vehicles to stall near Meadowood Mall.

Flash Flood in CARSON CITY (C), NEVADA
From 20-JUL-14 14:00:00 to 20-JUL-14 14:00:00 (PST-8)
Location: STEWART
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water over roads and mud debris along and near Center Drive were reported (including pictures and videos) by a fire department official. Extensive damage to streets due to undermining was noted along with minor water and mud intrusions into several homes. One home had up to a foot of water and mud in the garage along with damage to the garage door. The time of the event is estimated.

Debris Flow in DOUGLAS, NEVADA
From 20-JUL-14 14:00:00 to 20-JUL-14 14:00:00 (PST-8)
Location: JACKS VLY
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

A Facebook photo and a report from Douglas County Emergency Management indicated a large mud flow across Long Dr. The time of the event is estimated but was likely between 1330PST and 1430PST.

Flash Flood in CARSON CITY (C), NEVADA
From 20-JUL-14 13:45:00 to 20-JUL-14 14:45:00 (PST-8)
Location: STEWART
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported debris and rocks in roadways near Windmill and Fish Springs Road around 1400PST. A short time later the spotter noted that Windmill Road was washed out and Calle Del Sol was impassable. The spotter's rain gauge recorded 1.10 of rain between 1300PST and 1325PST.

Hail in WASHOE, NEVADA
From 21-JUL-14 18:07:00 to 21-JUL-14 18:07:00 (PST-8)
Location: HAROLDS TRAPSHOOT SP
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half-dollar sized hail was reported in the Palomino Valley.

Thunderstorm Wind in WASHOE, NEVADA
From 20-JUL-14 14:16:00 to 20-JUL-14 14:16:00 (PST-8)
Location: LEMMON VLY
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Measured at the NWS Reno office.

Thunderstorm Wind in CHURCHILL, NEVADA
From 20-JUL-14 13:50:00 to 20-JUL-14 13:50:00 (PST-8)
Location: (NFL)NAS FALLON
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Maximum wind gust measured at the Dead Camel RAWS between 1347PST and 1447PST. Time of gust estimated from radar.

Dust Storm in WESTERN NEVADA BASIN AND RANGE, NEVADA
From 20-JUL-14 14:00:00 to 20-JUL-14 16:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Law Enforcement

A line of thunderstorms initiated an extensive gust front, which moved north bringing winds 25 to 40 mph with gusts to around 60 mph. The Pershing County Sheriff's office (as well as photographic evidence) indicated a large dust storm with near zero visibility along highway 95 north of Fallon and on Interstate 80 between Fernley and Winnemucca.

Thunderstorm Wind in LYON, NEVADA
From 20-JUL-14 13:55:00 to 20-JUL-14 13:55:00 (PST-8)
Location: SILVER SPGS ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The Silver Springs airport measured sustained winds of 40 mph with a gust to 60 mph.

Thunderstorm Wind in CHURCHILL, NEVADA
From 20-JUL-14 14:53:00 to 20-JUL-14 14:53:00 (PST-8)
Location: OCALA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Lovelock airport measured sustained winds of 44 mph with gusts to 61 mph.

Flash Flood in DOUGLAS, NEVADA
From 20-JUL-14 13:19:00 to 20-JUL-14 14:00:00 (PST-8)
Location: DOUGLAS CO ARPT
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Homeowner called 911 to report water flowing into his home at 1319PST. At least 5 other homes indicated mud (up to 3 to 5 feet) and water flows, with a video showing fast-flowing water down a street.

Hail in CARSON CITY (C), NEVADA
From 19-JUL-14 16:00:00 to 19-JUL-14 16:00:00 (PST-8)
Location: NEW EMPIRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail report near Carson City High School.

Thunderstorm Wind in DOUGLAS, NEVADA
From 20-JUL-14 12:45:00 to 20-JUL-14 12:45:00 (PST-8)
Location: GARDNERVILLE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter