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How much rain is coming to L.A. County over the next week? A lot

AZUSA CA FEBRUARY 1, 2024 - Commuters navigate heavy traffic on rain-slicked westbound 210 Freeway through Azusa on Feb. 1, 2024. This is the first of a pair of storms expected to bring significant rainfall to the region. (Irfan Khan / Los Angeles Times)
Commuters navigate heavy traffic on rain-slicked westbound 210 Freeway through Azusa on Feb. 1. (Ifan Khan/Los Angeles Times)

If your rain gutters are overflowing now, just wait.

Forecasters say a second storm fueled by an atmospheric river will hit California next week, roughly doubling the amount of rain falling Thursday on Los Angeles and surrounding areas.

All told, the city of L.A. is expected to receive almost 5.9 inches from the storm that started Wednesday and the more enduring one that's expected to peak on Sunday and Monday, the National Weather Service said this week. The totals within L.A. County range from 2.7 inches in Lancaster to 10.2 inches in Pine Mountain.

Map showing predicted large amounts of precipitation through Feb. 8 for California.
(Paul Duginski / Los Angeles Times)

For those of you keeping track at home, the amount of rain expected for L.A. is about three times as much as the city received in January. And it's more than the city saw in all of 2020-21, according to the Los Angeles Almanac.

Here are the weather service's projections for rainfall for selected cities in the region:

  • Fillmore: first storm 3 inches, second storm 5.3 inches, 8.3 inches total

  • Lancaster: first storm 0.8 inches, second storm 1.9 inches, 2.7 inches total

  • Long Beach: first storm 1.9 inches, second storm 3.5 inches, 5.4 inches total

  • Los Angeles: first storm 2 inches, second storm 3.9 inches, 5.9 inches total

  • Northridge: first storm 1.9 inches, second storm 4.2 inches, 6.1 inches total

  • Ojai: first storm 3.3 inches, second storm 6.5 inches, 9.7 inches total

  • Oxnard: first storm 2 inches, second storm 4.8 inches, 6.7 inches total

  • Pasadena: first storm 3 inches, second storm 4.5 inches, 7.5 inches total

  • Paso Robles: first storm 0.9 inches, second storm 2.2 inches, 3.1 inches total

  • San Luis Obispo: first storm 1.8 inches, second storm 3.4 inches, 5.2 inches total

  • Santa Barbara: first storm 2.5 inches, second storm 5.7 inches, 8.2 inches total

The weather service offered more general projections for snowfall, saying the first storm could bring 8 to 16 inches of snow to elevations above 7,000 feet. As for the second storm, the service said, "significant and hazardous" snowfall will be possible above 6,000 feet through Monday night, with lesser amounts possible at lower elevations in the mountains by Tuesday or Wednesday.

Forecasters expect the first storm to abate Thursday afternoon, although San Luis Obispo and the mountains could see more precipitation Friday.

The volume dumped by the second storm is expected to be significantly greater because the storm system isn't in as big a hurry to leave Southern California. The system is expected to stall "from around Point Conception south," the weather service said, but that spot "could easily shift 50 to 100 miles either direction so there still is some uncertainty." Nevertheless, it said, "this system will likely produce 24 to 36 hours (or more) of continuous rain."

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This story originally appeared in Los Angeles Times.