“Had the storm been moving along at a more typical forward speed for tropical storms, such as 10-12 mph, rainfall could have been much worse than it was, with even more severe impacts,” said AccuWeather chief meteorologist Jonathan Porter in a media advisory. Kyle Grillot/Special to The San Francisco Chronicle 21. Hilary, a tropical storm as it passed through Southern California, flooded parts of the city, leaving tons of mud and water behind. But the impacts could have been even worse had the storm not rushed through the state.Įmiliano De La Torre, center, wades through flooded Avenida La Vista in Cathedral City (Riverside County) on Monday, Aug. Total damage and economic losses from Tropical Storm Hilary could total $7 billion to $9 billion, according to preliminary estimates from AccuWeather. “If you’re talking about summertime extremes, you have to start going back decades to the only other tropical storms, or their remnants, that have hit California, in order to get these types of rainfall totals,” Cordeira said.
While the state saw impressive precipitation during the winter, what stands out about the recent rains is that they came during the summer months - typically the driest part of the year for California. 21. Hilary has impacted the region with unusual amounts of rain and flooding. 0.00 inch: 3.28 inch: Total snowfall Total snowfall - inch: 0 inch: Highest max temperature Highest max temp. In this aerial photo, a debris flow from the Sheep Creek Wash covers Highway 2 in Wrightwood (San Bernardino County) on Monday, Aug. “The east side of the mountains would squeeze out more of that moisture,” Cordeira said, resulting in more rainfall.Īreas just north of Los Angeles were also hit hard, seeing 2 to 6 inches of rain, producing localized flash flooding, Cordeira said. That’s because Hilary’s winds were rotating counterclockwise as the tropical cyclone came up the coast, Cordeira explained, which put those mountainous regions directly in the path of incoming danger.
The San Bernardino Mountains saw some of the highest rainfall totals, upwards of 9 inches - especially on east-facing slopes. “In some locations out over the deserts, this was a whole year’s worth of rainfall all in one event,” said Jay Cordeira, an atmospheric scientist with the Center for Western Weather and Water Extremes at UCSD’s Scripps Institution of Oceanography Live storm map: See where rain is hitting California and Bay Area.Floodwaters trapped cars in desert communities like Palm Springs, where over 3 inches of rain fell. San Diego registered 1.82 inches - making for the city’s wettest day since Feb. Places like Los Angeles saw their wettest day in August on record, with downtown tallying 2.48 inches.
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