2014: Thunderstorms in Nuevo and in Menifee (both in Riverside Co.) dropped hail one inch in diameter.
2003: A lightning strike ignited a fire in a stack of 800 bales of hay near Porterville.
2003: Thunderstorms developed in the mountains and the desert, dropping three inches of rain in at Yucca Valley, 2.63" in one hour and seven minutes in San Felipe Valley, and 1.92" in two hours in Ocotillo Wells.
Flash flooding hit five residences in Yucca Valley.
Three lost their lives and two swift water rescues were made from trapped vehicles in Twentynine Palms.
Numerous washes were flooded.
Hwy. S2 near Warner Springs was closed to flooding.
2.6" fell in Big Bear Lake, the greatest daily amount on record for August.
1997: The remnants of tropical storm Ignacio produced record rainfall over portions of northern and central California.
24 hour and 1 hour rainfall records were exceeded at San Francisco, and it was the second wettest August ever recorded in the City.
General rainfall totals ranged from 0.5 to 1.5" in the northern San Francisco Bay Area with 0.5 to 2.27" farther south along the immediate coastal range.
Along the central coast, Three Peaks in the Santa Lucia Mountains of Monterey County had a rain rate of just over 0.9" an hour and a 24 hour total of 2.2".
The greatest hourly rainfall rate at San Francisco Duboce Park was 0.22" between 11 pm and midnight on August 19, which set a record one hour maximum rainfall rate for August.
1997: The remnants of Tropical Storm Ignacio tracked northward moving inland in central California with gale force winds over portions of the Southern California coastal waters. This occurred during the strong El Niño of 1997-98.
1997: Redwood City received 0.81" of rain -- a record for the month.
1995: Heavy rains during the night of August 20-21 drop 1.94" of rain on Mojave.
This amount is 31.6% of Mojave's normal seasonal rainfall of 6.14".
The normal monthly rainfall for August at Mojave is 0.2".
1990: Portola recorded 2.02" of precipitation.
1984: Flooding at Onyx.
Sodie Creek overflowed its banks resulting in four homes being damaged by mud and one home washing away.
0.66" of rain fell in just 40 minutes.
1972: Dust storms in the far south end of the San Joaquin Valley cause two fatal chain-reaction accidents.
One, on Interstate 5, involved 30 vehicles and resulted in four fatalities and 80 injuries.
The other, on Highway 99 south of Bakersfield, involved 50 vehicles and resulted in 3 fatalities and 16 injuries.
1921: The remnants of a tropical cyclone tracked northward into western Arizona from central Baja California generating rainfall of up to 2" in the deserts and southern mountains of southern California on this day and on 8.21.
This occurred during the La Niña of 1920-21.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego
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Lightning struck a building and some palm trees in Riverside, knocking out power
at a community college and ignitingpalm trees.
2003: A lightning strike ignited a fire in a stack of 800 bales of hay near Porterville.
2003: Thunderstorms developed in the mountains and the desert, dropping three inches of rain in at Yucca Valley, 2.63" in one hour and seven minutes in San Felipe Valley, and 1.92" in two hours in Ocotillo Wells.
Flash flooding hit five residences in Yucca Valley.
Three lost their lives and two swift water rescues were made from trapped vehicles in Twentynine Palms.
Numerous washes were flooded.
Hwy. S2 near Warner Springs was closed to flooding.
2.6" fell in Big Bear Lake, the greatest daily amount on record for August.
1997: The remnants of tropical storm Ignacio produced record rainfall over portions of northern and central California.
24 hour and 1 hour rainfall records were exceeded at San Francisco, and it was the second wettest August ever recorded in the City.
General rainfall totals ranged from 0.5 to 1.5" in the northern San Francisco Bay Area with 0.5 to 2.27" farther south along the immediate coastal range.
Along the central coast, Three Peaks in the Santa Lucia Mountains of Monterey County had a rain rate of just over 0.9" an hour and a 24 hour total of 2.2".
The greatest hourly rainfall rate at San Francisco Duboce Park was 0.22" between 11 pm and midnight on August 19, which set a record one hour maximum rainfall rate for August.
1997: The remnants of Tropical Storm Ignacio tracked northward moving inland in central California with gale force winds over portions of the Southern California coastal waters. This occurred during the strong El Niño of 1997-98.
1997: Redwood City received 0.81" of rain -- a record for the month.
1995: Heavy rains during the night of August 20-21 drop 1.94" of rain on Mojave.
This amount is 31.6% of Mojave's normal seasonal rainfall of 6.14".
The normal monthly rainfall for August at Mojave is 0.2".
1990: Portola recorded 2.02" of precipitation.
1984: Flooding at Onyx.
Sodie Creek overflowed its banks resulting in four homes being damaged by mud and one home washing away.
0.66" of rain fell in just 40 minutes.
1973: Thunderstorm winds caused damage at three marinas on Lake Mead, NV.
At the Las Vegas Wash Marina alone 16 boats sunk and over 200 were wrecked resulting in $1.5 million in damages.
At the Las Vegas Wash Marina alone 16 boats sunk and over 200 were wrecked resulting in $1.5 million in damages.
1972: Dust storms in the far south end of the San Joaquin Valley cause two fatal chain-reaction accidents.
One, on Interstate 5, involved 30 vehicles and resulted in four fatalities and 80 injuries.
The other, on Highway 99 south of Bakersfield, involved 50 vehicles and resulted in 3 fatalities and 16 injuries.
1921: The remnants of a tropical cyclone tracked northward into western Arizona from central Baja California generating rainfall of up to 2" in the deserts and southern mountains of southern California on this day and on 8.21.
This occurred during the La Niña of 1920-21.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego
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