A series of storms fueled by a tropical moisture tap pounded the Mojave Desert and southern Great Basin for several days.  Extremely heavy snow and widespread flooding resulted.

Flood in SAN BERNARDINO, CALIFORNIA
From 21-DEC-10 14:30:00 to 24-DEC-10 09:00:00 (PST-8)
Location: HODGE
Flood cause: Heavy Rain
Property damage: 5.00M
Crop damage: 0.00K
Reported by: County Official

The Mojave River overflowed its banks due to a combination of heavy rain and emergency release of water from Cedar Spring Dam near Arrowhead. Numerous roads were covered with mud and closed, one bridge was washed out, a broken levee flooded a neighborhood, and three swift water rescues were performed.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 22-DEC-10 10:15:00 to 22-DEC-10 14:15:00 (PST-8)
Location: PIONEERTOWN
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

A car was stuck in floodwaters on Old Woman Springs Road at Pipes Canyon Road. Reche Road in Landers was also full of debris.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 22-DEC-10 12:04:00 to 22-DEC-10 15:04:00 (PST-8)
Location: PIONEER PT
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Highway 178 flooded just north of Trona, trapping seven people in vehicles.

Flash Flood in INYO, CALIFORNIA
From 22-DEC-10 12:08:00 to 24-DEC-10 18:00:00 (PST-8)
Location: TECOPA
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Newspaper

The community of Tecopa was completely cut off when the only three paved roads into and out of the town were flooded. More than 18 inches of water flowed across one road for two days straight.

Flash Flood in INYO, CALIFORNIA
From 19-DEC-10 08:44:00 to 19-DEC-10 11:00:00 (PST-8)
Location: LONE PINE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding washed boulders onto Whitney Portal Road.

Flash Flood in INYO, CALIFORNIA
From 19-DEC-10 15:30:00 to 19-DEC-10 23:30:00 (PST-8)
Location: OLANCHA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

At least a foot of water flowed across Highway 395 south of Olancha. The ending time is estimated.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 19-DEC-10 18:45:00 to 19-DEC-10 21:00:00 (PST-8)
Location: CALICO
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding at the intersection of Irwin Road and Copper City Road trapped two men in their vehicle.

Flash Flood in INYO, CALIFORNIA
From 19-DEC-10 17:00:00 to 20-DEC-10 00:00:00 (PST-8)
Location: FISH SPGS
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several county roads in Death Valley National Park were covered by water and debris.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 19-DEC-10 19:20:00 to 19-DEC-10 22:00:00 (PST-8)
Location: LENWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The intersection of Cedar Road and Jasper Road was flooded, with a vehicle possibly stuck in the water.

Flash Flood in INYO, CALIFORNIA
From 19-DEC-10 20:20:00 to 19-DEC-10 23:00:00 (PST-8)
Location: LINNIE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A vehicle was stuck in flood waters on Kennedy Meadow Road just east of Highway 395.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-DEC-10 00:00:00 to 22-DEC-10 00:00:00 (PST-8)
Location: CALICO
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Many roads on Fort Irwin were flooded and/or washed out.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-DEC-10 16:22:00 to 20-DEC-10 19:00:00 (PST-8)
Location: YUCCA VLY ARPT
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Yucca Mesa Road and Indio Avenue were closed due to softball sized rocks and a foot of water on the roads.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-DEC-10 16:38:00 to 20-DEC-10 19:00:00 (PST-8)
Location: LENWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Eight to ten inches of water flowed through the intersection of Cedar Road and Jasper Road.

Heavy Snow in WHITE MOUNTAINS OF INYO COUNTY, CALIFORNIA
From 18-DEC-10 12:00:00 to 20-DEC-10 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Caltrans reported two feet of snow on Highway 168 at Westgard Pass (7300').

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 22-DEC-10 10:00:00 to 22-DEC-10 14:00:00 (PST-8)
Location: YUCCA VLY
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

Several roads were closed by flooding in Yucca Valley and Joshua Tree. One vehicle was stuck in the water on Mojave Ranch Road in Joshua Tree.

Heavy Snow in EASTERN SIERRA SLOPES OF INYO COUNTY, CALIFORNIA
From 17-DEC-10 13:00:00 to 22-DEC-10 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter measured a total of 88.1 inches of snow in Aspendell (8500'). A CoCoRAHS observer measured 25.8 inches 8.5 miles west of Bishop (6000').

Heavy Rain in INYO, CALIFORNIA
From 19-DEC-10 12:40:00 to 19-DEC-10 15:00:00 (PST-8)
Location: BISHOP
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain produced minor flooding of numerous streets and several yards in Bishop.