A winter storm brought strong winds, moderate to heavy rainfall and high elevation snowfall to the area. Overall, rainfall totals ranged from 2 to 4 inches across coastal and valley areas with 4 to 8 inches across the foothills and mountains.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LOX wrote it up.
A winter storm brought strong winds, moderate to heavy rainfall and high elevation snowfall to the area. Overall, rainfall totals ranged from 2 to 4 inches across coastal and valley areas with 4 to 8 inches across the foothills and mountains. Rainfall intensities were moderate, resulting in widespread nuisance urban flooding. Snow levels remained very high, above 6000 feet, with the resort level receiving 8-16 inches of snowfall. Along with the rain and snow, gusty southerly winds were reported with gusts up to 87 MPH.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before the first event at Jan 4, 6:41 PM UTC, 3 hours 59 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
5 high wind, 1 winter storm. Local standard time, as filed.
Strong southerly winds impacted the mountains of San Luis Obispo county. The strongest gusts were recorded at Mount Lowe with southerly gusts peaking at 60 MPH.
Strong southerly winds impacted the Santa Lucia Mountains in San Luis Obispo county. Some peak wind gusts from the local mesonet include: TV Towers (gust 63 MPH), Davis Peak (gust 62 MPH), Green Valley Road (gust 59 MPH) and High School Hill (gust 58 MPH).
Strong southerly winds impacted the interior mountains of Santa Barbara county. The strongest gusts were recorded at the Tepusquet RAWS with southerly gusts peaking at 61 MPH.
Winter storm conditions developed across the mountains of Los Angeles county. Snow levels remained above 6000 feet and resort level elevations (7000+ feet) reported between 8 and 16 inches of snowfall. Additionally, very strong and gusty winds developed. Some peak wind gusts include: Magic Mountain Truck Trail (gust 97 MPH), Yucca Circle (gust 75 MPH) and Sandberg (gust 59 MPH).
Strong southerly winds impacted the interior valleys of San Luis Obispo county. The strongest gusts were recorded at Lewis Ranch with southerly gusts peaking at 64 MPH.
Strong southerly winds impacted the Inland Central Coast of Santa Barbara county. Some peak wind reports from the local mesonet include: Purisima Hills (gust 61 MPH) and Divide-Cabrillo (gust 58 MPH).
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2023Every state in 2023This day in weather historyWarnings in California, January 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1079252, 1079251, 1079254, 1079250, 1079253, 1079255.