2018: A landspout tornado was observed northwest of Anza.
No injuries or damages were reported.
2016: The Cedar fire began on 8/16/16 5 miles north of Alta Sierra in Kern County and spread northward into Tulare County.
It was human caused.
The fire burned 29,322 acres and was 70 percent contained as of 8/31/16. The fire continued to burn into September.
The fire forced evacuations for several communities in Kern and Tulare counties for more than two weeks and Highway 155 was closed for several days due to the fire.
Six cabins in the Spear Creek Summer Homes tract in the community of Posey in Tulare County were destroyed.
The cost of containment as of 8/31 was $45 million.
2016: Gusty winds through the Cajon Pass and very dry conditions helped fan the Blue Cut Fire into a fury on this day.
The fire spread rapidly forcing 84,000 mandatory evacuations and threatening 35,000 homes.
Numerous roads were closed, including Interstate 15 in both directions for twodays.
The fire destroyed 105 homes, and 313 smaller structures, and scorched 36,274 acres before it was extinguished.
2005: A thunderstorm cell near Wawona in Mariposa County produced an estimated 2" - 2.5" of rain in an hour in the afternoon.
2000: Strong thunderstorm wind gusts of 80-100 mph moved through the community of Golden Shores, AZ (across the Colorado River from Needles, CA), causing one million dollars in damage.
Two mobile homes were destroyed and 17 other mobile homes and frame houses were unlivable.
Another 117 homes received minor damage.
One injury occurred when the homeowner sought shelter in a tub in the mobile homes bathroom.
As the mobile home rolled the toilet was ripped from its foundation and struck the homeowner in the head causing cuts and bruises.
In addition, numerous pontoon boats were either flipped over or destroyed and several windows were broken on homes and cars.
The storm snapped several power lines which cut power, in turn cutting the town's water supply.
1992: Tropical air brought hot and muggy weather with high heat index values to the Southern California region for a week, peaking on this day and on 17 August.
On this day it was 99° in L.A. with a heat index of 110°.
Temperatures in the valleys and Inland Empire ranged from 100-110°.
The heat caused problems for the Miramar Air Show, where 60 people suffered heat-related illnesses and two died.
1988: Redwood City had a high temperature of 100° F .
1983: More than an 1-1/2" of rain fell in the Tehachapi Mountains in an hour washing out portions of Highway 58.
1983: A thunderstorm outbreak dropped record rainfall on a number of mountain and desert stations across Southern California; 1.56" of rain fell in Palm Springs, 1.13" in Idyllwild, and 0.94" fell in Alpine.
Strong early morning thunderstorms dumped heavy rain on Morongo Valley. Flash flooding trapped 2 people in their cars with water up to the windows, several homes were also damaged.
1977: Hurricane Doreen tracked north northwestward along the west coast of Baja California, dissipating over the coastal waters west of San Diego.
Most areas received at least 2" of rainfall with up to 8' in the mountains from 8.15 to 8.17.
This occurred during the El Niño of 1977-78.
4.9" fell at Mt. Laguna, 4.5" at Borrego Palm Canyon, four inches at Palomar Mountain and Lake Henshaw, 3.26" at Borrego Springs (2.53" in 6 hours on this day, a 100 year event), and more than 2" in Palm Springs and in Riverside.
4.5" fell at the Salton Sea in just a few hours.
4 died and $25 million in damage in Southern California resulted.
Debris flows and flooding from Henderson Canyon into the Borrego Springs De Anza neighborhood damaged 100 homes.
Mud flows grew to 5' deep.
Flooded roads resulted in desert areas.
Severe flooding also occurred in California's Imperial Valley.
Floods and crop damage was incurred at the Salton Sea.
2.13" of rain fell in San Diego on this day and on 8.17, the wettest 24-hour period on record for August.
Severe flooding occurs in Yuma County, and around Bullhead City.
Rainfall in Yuma totals 2.96". Severe flooding also occurred in California's Imperial Valley.
1973: A severe thunderstorm produced a tornado in Blythe that ripped the roof from a home, and moved 2 others from their foundations.
1967: Thunderstorms hit the lower desert, also on 8.17, produced 2.5" of rain in 90 minutes at Cathedral City and 0.75" at Indio.
1965: Heavy rainfall washed out Mt. Rose Highway (W. NV), closing it for 3 days.
1965: Thunderstorms hit the mountains and deserts.
A flash flood four feet deep damaged highway 138 near Wrightwood.
1961: Fresno received 0.01" of rain.
This was the first time measurable rain fell here in the month of August since 1941.
1956: Felton (Santa Cruz Co.) had a low temperature of 38° F.
1918: An unseasonable front went through the region, producing some of the lowest maximum temperatures on record.
On this day it was 40° F in Victorville, the lowest temperature on record for August.
1910: A big forest fire sprang up a mile south of Dunsmuir (Shasta Co.) on the south side of Castle Creek.
Fire crews thought they conquered it, but it flamed up again.
1909: A dry spell began in Bagdad, central San Bernardino County, on this day that lasted until 5.6.1912, a stretch of 994 days! (Southern Pacific RR employees kept this debated record).
Source: NWS San Francisco/Monterey, Hanford, Reno, & San Diego as well as the Redding Re