1939 California Tropical Storm - Impact

Impact

The storm dropped heavy rain on California, with 5.66 inches (144 mm) falling in Los Angeles (5.24 inches in 24 hours) and 11.60 inches (295 mm) recorded at Mount Wilson, both September records. Over three hours, one thunderstorm dropped nearly 7 inches (180 mm) of rain on Indio. 9.65 inches fell on Raywood Flat, and 1.51 inches (38 mm) on Palm Springs. 4.83 inches fell on Pasadena, a September record at the time. At the Citrus Belt near Anaheim, at least 4.63 inches of rain fell. The 11.60 inches (295 mm) at Mount Wilson is one of California's highest rainfall amounts from a tropical cyclone, although at least one system has a higher point maximum. The rains caused a flood 2 to 4 feet (1.2 m) deep in the Coachella Valley, although some of this may be attributable to a rainstorm dropping 6.45 inches (164 mm) the day before the storm hit. The Los Angeles River, which was usually low during September, became a raging torrent.

The flooding killed 45 in Southern California, although some of these may be attributable to the rain immediately before the tropical storm. At sea, 48 were killed. The National Hurricane Center only attributes 45 deaths to this system. Six people caught on beaches drowned during the storm. Most other deaths were at sea. Twenty-four died aboard a vessel called the Spray as it attempted to dock at Point Mugu. The two survivors, a man and a woman, swam ashore and then walked five miles (8 km) to Oxnard. Fifteen people from Ventura drowned aboard a fishing boat called the Lur. Many other vessels were sunk, capsized, or blown ashore.

Many low-lying areas were flooded. The Hamilton Bowl overflowed, flooding the Signal Hill area. Along the shore from Malibu to Huntington Beach houses were flooded. Throughout the area, thousands of people were stranded in their homes. Streets in Los Angeles proper were covered with water, flooding buildings and stalling cars. Flooding in Inglewood and Los Angeles reached a depth of 2 to 3 feet. Construction on a flood control project in the Los Angeles River's channel by the Army Corps of Engineers was stopped by the flooding. In Long Beach windows throughout that city were smashed by the wind. At Belmont Shore, waves undermined ten homes before washing them away. Debris was scattered throughout the coast. Agriculture was disrupted. Crop damage in the Coachella Valley reached 75%.

Rains washed away a 150-foot (46 m) section of the Southern Pacific Railroad near Indio, and a stretch of the Santa Fe main line near Needles. Waters backing up from a storm drain under construction in the Santa Monica Valley blocked U.S. Route 6 in California. The pier at Point Mugu was washed away. In Pasadena, 5000 people were left without electricity and 2000 telephones lost service. Communications throughout the affected area was disrupted or rendered impossible. The total amount of damage was $2 million (1939 USD, $26.2 million 2005 USD).

The tropical storm was credited with at least one beneficial effect: it ended a vicious heat wave that had lasted for over a week and killed at least ninety people.

People were caught unprepared by the storm, which was described as "sudden". Some people were still on the beach at Long Beach when the wind reached 40 miles per hour, at which time lifeguards closed the beach. Schools were closed there. Out at sea, the Coast Guard and Navy conducted rescue operations, saving dozens of people. In response to Californians' unpreparedness, the Weather Bureau established a forecast office for southern California, which began operations in February 1940.

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