A moderate winter storm impacted Southwestern California early in the month. 50 inches across coastal and valley areas with 1 to 3 inches across the mountains.
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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 moderate winter storm impacted Southwestern California early in the month. Rainfall totals ranged from 0.50 to 1.50 inches across coastal and valley areas with 1 to 3 inches across the mountains. Cold air, associated with the storm, dropped snow levels to around 3000 feet. So, there were significant snowfall accumulations in the local mountains. Scattered thunderstorms also developed, producing some wind damage.
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 Feb 28, 1:42 PM PST, 11 hours 18 minutes earlier.
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</html>The Los Angeles radar (KVTX), 37 km away, was scanning. The volume nearest the first event began at 20:44 UTC.
2 winter storm, 1 high wind, 1 thunderstorm wind. Local standard time, as filed.
Winter storm conditions developed across the mountains of Los Angeles county. Snowfall amounts above 5000 foot elevation ranged between 8 and 20 inches. Along with the snowfall, strong winds were observed. Some peak gusts from the local mesonet include: Magic Mountain Truck Trail (gust 64 MPH) and Ford Observatory (gust 64 MPH).
Winter storm conditions developed across the mountains of Ventura county. Snowfall amounts above 5000 foot elevation ranged between 8 and 20 inches. Along with the snowfall, strong winds were observed with gusts around 60 MPH reported.
Strong and gusty northerly winds impacted the eastern range of the Santa Ynez Mountains. Some peak gusts from the local mesonet include: Montecito Hills (gust 71 MPH) and La Granada Mountain (gust 66 MPH).
Scattered thunderstorms developed over Los Angeles county, bringing gusty winds to sections of the coastal plain. Between the communities of Downey and Montebello, thunderstorm winds uprooted a couple of trees and blew shingles off some roofs. Also, one person was injured by wind-blown debris.
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, March 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 2026-09-30. Each event’s entry at NCEI: 1090739, 1090740, 1090737, 1090742.