2008: A gustnado (a spinning column of air on the leading edge of a thunderstorm's gust front) caused some property damage in Adelanto.
2002: Strong thunderstorm winds blew through Kingman, AZ (Mohave Co.) destroying 16 homes and damaging 36.
Most of the damaged and destroyed homes were mobile homes in the Kingman Shadows subdivision.
Four people received minor injuries from flying debris.
Several power lines were also blown down knocking out power to an estimated 3,000 to 4,000 people.
1999: Heavy thunderstorms hit the mountains and deserts each day starting on 7.11 and ending on 7.13.
Rainfall rates included 1.65" in less than 30 minutes at Lake Henshaw, 1.57" in 20 minutes at Big Bear City, 1.4" in 30 minutes at Sugarloaf, 1.6" in 85 minutes at Forest Falls, 1" in one hour at Pine Cove, 1" in 25 minutes at Shelter Valley.
1" per hour rain rate occurred at Phelan.
2 were killed and dozens were injured.
6 homes were destroyed and many more were damaged.
A 25 ft. high wall of water moving at 45 mph moved 70-ton boulders at Forest Falls.
Buildings washed away at Jenks Lake.
Disastrous flooding and mud slides occurred at Oak Glen, Big Bear City, and Apple Valley.
Flooding hit the Yucca Valley area, Beaumont area and Palm Springs.
Roadways were closed due to flash flooding.
On this day a tornado hit 6 miles east of Julian in Shelter Valley, although recorded wind speeds nearby were 43 mph.
Building and structure damage occurred, trees were uprooted and knocked over.
On this day 0.98" of rain fell in Victorville, the greatest daily amount on record for July.
A tornado touched down in Shelter Valley (San Diego Co.).
1999: Thunderstorms formed in a southwest to northeast band during the evening from the Lucerne Valley through the northwest part of the Twentynine Palms Marine Corps Training Center and across I-40 into the Devils Playground.
Estimated rainfall amounts ranged from 1.5" to 2.5" across the area.
Law enforcement officials reported sections of road swept away along State Route 247 between Lucerne Valley and Landers.
State Route 62 in the vicinity of Joshua Tree was also flooded in places as were other secondary roads.
The most significant event occurred at approximately 10:20 p.m. PDT when flash flood waters caught a light armored vehicle on the Marine Corps training grounds.
One man was thrown from the vehicle and swept away by the swift current. His body was found shortly thereafter and he was later pronounced dead at the base hospital.
1992: Remnants of Hurricane Darby unleashed heavy rains over the Sierra Nevada and nearby foothills.
2"-3" of rain fell on a burn area above Oakhurst which resulted in flooding along the main road in town.
Cars, homes and businesses were damaged, with 2 ft. of water reported in some homes.
1992: Lingering moisture pushed northward by the remnants of Hurricane Darby brought unusually intense thunderstorm activity to Death Valley. Officials at the Death Valley Ranger Station reported flash flooding near Wildrose Peak and in Immigrant Canyon.
1990: Woodfords (Alpine Co.) recorded 1.41" of precipitation.
1968: The minimum temperature was 90° F in Borrego Springs, the highest minimum temperature on record.
This also occurred on 7.11.2002.
1961: Afternoon thunderstorms rolled through Orange and L.A. Counties.
A fisherman was killed by a lightning strike at Redondo Beach.
Other lightning strikes knocked out transformers, took the police radio off the air, and ignited several fires.
In the Antelope Valley, a funnel cloud was spotted by a pilot near Pearblossom.
1957: A heavy thunderstorm struck Redlands at 2:35 pm with one inch of rainfall in 30 minutes.
Lightning, hail and "winds, which blew alternately from every point of the compass" accompanied the storm.
Within 10 minutes streets were flooded in Redlands.
One girl drowned while swept nearly a mile down a storm drain.
Just after 3 pm the sun was out and streets were dry.
1954: Heavy thunderstorms struck the Morongo Basin.
Flash floods hit Morongo Valley, Yucca Valley and Twentynine Palms.
Numerous roads were severely damaged and closed.
Some roads were left covered in sand and mud.
1917: The high temperature at Susanville was 102° F.
1913: The low temperature in Saint Helena was a warm 84° F.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego
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