2001: Thunderstorms rumbled through the Bay Area during the afternoon and evening hours of the 24th.
From noon on the 24th until 2 AM on the 25th over 4500 lightning strikes were recorded from Monterey county north to Sonoma county, with a peak of nearly 2600 strikes between 6 PM and 10 PM.
1997: Heavy rain and thunderstorms developed on this day and ended on 9.26.
Moisture came from the remnants of Hurricane Nora, which had moved up the Gulf of California and weakened over Yuma, AZ, giving that city more rainfall in three hours than for a normal entire season.
Rainfall totals were 5.5" at Mt. San Jacinto, 4.7" Mt. Laguna, 4.41" Mt. San Gorgonio, 3"-4" at several other locations in mountains, 3.07" in Twentynine Palms, 1.5"-2" inches at Coachella and Borrego Valleys, 2.88" in Hemet, and1"-2" in many inland areas.
Flooding occurred in Palm Springs, Borrego Springs, and Spring Valley.
Traffic deaths also resulted.
1986: Early season storm brought snow at Lodgepole and Grant Grove (Sequoia/Kings Canyon NP) with storm totals of 4" at both.
1986: Unseasonable rainfall hit San Diego County on this day and on 9.25: 1.04" fell in San Diego, 5.14" in Palomar Mountain, 2.07" in Julian, 1.88" in Mt. Laguna, 1.61" in Lemon Grove, 1.58" in Pt. Loma, 1.57" in Vista, and 1.47" at SDSU.
Flooding occurred in low roadways in Mission Valley.
The Angels' home game at Anaheim Stadium against the Cleveland Indians was rained out.
1982: The remnants of Hurricane Olivia recurved northeastward across Southern California with rainfall up to four inches in the mountains starting on this day and ending on 9.26.
This occurred during the strong El Niño of 1982-83.
1978: Lompoc established a new record high for the month of 106° F.
1976: A thunderstorm dropped four inches of rain in three hours in Borrego Valley.
Only 1.2" fell at the Anza Borrego Desert State Park headquarters.
Damage and erosion to fields, property, and the airport resulted.
1963: Thunderstorms hit the San Bernardino Mountains and high desert around Barstow, producing flash flooding east of Barstow.
1945: It was 26° F in Idyllwild, the lowest temperature on record for September.
This also occurred the previous day on 9.23.1945, on 9.20.1965, and on 9.21.1968.
1939: A thunderstorm on this day dropped 6.45" in six hours at Indio.
This preceded "El Cordonazo" or "The Lash of St. Francis", an actual tropical storm.
For the entire storm, which started on this day and ended on 9.26, 4" of rain fell across the deserts and mountains as a dying tropical cyclone moved across Baja California into southwestern Arizona.
This was the second tropical cyclone to impact California during the busy month of September 1939.
A strong El Niño may have contributed to the activity.
The tropical storm produced 50 mph winds over the ocean and estimated seas of 40 feet.
48 died from sinking boats and harbors were damaged.
Californians were generally unprepared and were alerted to their vulnerability to tropical storms.
In response, the weather bureau established a forecast office for Southern California, which began operations in February of 1940.
1887: Fresno reached 104° F for a high temperature.
This is the oldest high temperature record still standing in the record books for Fresno.
Source: NWS San Francisco/Monterey, Hanford, Reno & San Diego
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From noon on the 24th until 2 AM on the 25th over 4500 lightning strikes were recorded from Monterey county north to Sonoma county, with a peak of nearly 2600 strikes between 6 PM and 10 PM.
1997: Heavy rain and thunderstorms developed on this day and ended on 9.26.
Moisture came from the remnants of Hurricane Nora, which had moved up the Gulf of California and weakened over Yuma, AZ, giving that city more rainfall in three hours than for a normal entire season.
Rainfall totals were 5.5" at Mt. San Jacinto, 4.7" Mt. Laguna, 4.41" Mt. San Gorgonio, 3"-4" at several other locations in mountains, 3.07" in Twentynine Palms, 1.5"-2" inches at Coachella and Borrego Valleys, 2.88" in Hemet, and1"-2" in many inland areas.
Flooding occurred in Palm Springs, Borrego Springs, and Spring Valley.
Traffic deaths also resulted.
1986: Early season storm brought snow at Lodgepole and Grant Grove (Sequoia/Kings Canyon NP) with storm totals of 4" at both.
1986: Unseasonable rainfall hit San Diego County on this day and on 9.25: 1.04" fell in San Diego, 5.14" in Palomar Mountain, 2.07" in Julian, 1.88" in Mt. Laguna, 1.61" in Lemon Grove, 1.58" in Pt. Loma, 1.57" in Vista, and 1.47" at SDSU.
Flooding occurred in low roadways in Mission Valley.
The Angels' home game at Anaheim Stadium against the Cleveland Indians was rained out.
1982: The remnants of Hurricane Olivia recurved northeastward across Southern California with rainfall up to four inches in the mountains starting on this day and ending on 9.26.
This occurred during the strong El Niño of 1982-83.
1978: Lompoc established a new record high for the month of 106° F.
1976: A thunderstorm dropped four inches of rain in three hours in Borrego Valley.
Only 1.2" fell at the Anza Borrego Desert State Park headquarters.
Damage and erosion to fields, property, and the airport resulted.
1963: Thunderstorms hit the San Bernardino Mountains and high desert around Barstow, producing flash flooding east of Barstow.
1958: The morning low temperature at Reno was 21° F.
1952: The high temperature at Lovelock was 94° F.
1945: It was 26° F in Idyllwild, the lowest temperature on record for September.
This also occurred the previous day on 9.23.1945, on 9.20.1965, and on 9.21.1968.
1939: A thunderstorm on this day dropped 6.45" in six hours at Indio.
This preceded "El Cordonazo" or "The Lash of St. Francis", an actual tropical storm.
For the entire storm, which started on this day and ended on 9.26, 4" of rain fell across the deserts and mountains as a dying tropical cyclone moved across Baja California into southwestern Arizona.
This was the second tropical cyclone to impact California during the busy month of September 1939.
A strong El Niño may have contributed to the activity.
The tropical storm produced 50 mph winds over the ocean and estimated seas of 40 feet.
48 died from sinking boats and harbors were damaged.
Californians were generally unprepared and were alerted to their vulnerability to tropical storms.
In response, the weather bureau established a forecast office for Southern California, which began operations in February of 1940.
1887: Fresno reached 104° F for a high temperature.
This is the oldest high temperature record still standing in the record books for Fresno.
Source: NWS San Francisco/Monterey, Hanford, Reno & San Diego
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