A longwave trough moving through the Great Basin caused gusty west winds across portions of Southern California on May 1st.
Every event with a place to put it; 1 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 SGX wrote it up.
A longwave trough moving through the Great Basin caused gusty west winds across portions of Southern California on May 1st.
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 San Diego, CA wrote its last area forecast discussion before the first event at Apr 30, 8:30 PM PST, 4 hours 30 minutes earlier.
Area Forecast Discussion National Weather Service San Diego CA 930 PM PDT Sat Apr 30 2022 .SYNOPSIS... Low pressure moving over Nevada will ramp up our onshore flow this evening, trigger a coastal eddy, and bring more clouds and cooler weather on Sunday. Moderate southerly winds will prevail along the coast, while west to southwest winds gust over the mountains and into the deserts. The cooler weather and deeper marine layer will prevail through Tuesday, followed by warmer weather, and a shrinking marine layer for the latter half of next week. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... Evening Update: No changes were needed this evening to the forecast. A coastal eddy is just beginning to spin up this evening, which will help to spread maritime stratus across the coastal strip and into the western valleys late tonight and into Sunday morning. Previous Forecaster Discussion (issued at 115 PM PDT): Tonight and Sunday, a trough will dig into the Great Basin, spurring the spin-up of a moderate eddy over the CA Bight, with gusty south winds and coastal clouds, which could be persistent in some areas into the afternoon. Gusty SW-W winds will be blowing by late this afternoon and overnight across the mts/deserts in advance of this system, and remain gusty on Sunday well inland. Another vigorous wave will follow later Mon/Tue, maintaining robust onshore flow with gusty mtn/desert winds, and near, to 5F below average daytime temperatures. Clearing may be limited in some areas of the coastal basin any of the coming days, with a chance of some patchy drizzle as well. Winds will be strongest on the desert slopes and below the desert passes, where a few spots are likely to gust to 50 MPH or more, especially late Monday evening. This could create some pockets of blowing dust at times in the deserts. For the latter half of next week there is ensemble consensus for warmer weather with weak ridging over the Southwest Wed-Fri, then cooling is favored into next weekend and the following week, but with more variability in the individual solutions. Warmest days next week favor temperatures of 5F or so above average. && .AVIATION... 010400Z...Coast/Valleys...Mostly clear skies with unrestricted vis will continue through 07Z Sun. Areas of BKN/OVC low clouds with bases 1000-1500 ft MSL will develop within 20 miles of the coastal areas 07Z-11Z Sun, with local vis 3-5 miles in BR over higher coastal terrain. Clearing will occur 5-20 miles inland 16Z-18Z Sun, but areas of low clouds will linger within 5 miles of the coast Sun afternoon as cloud bases rise to 2000-2500 ft MSL. Stratus will spread inland Sun evening into the valleys. Mountains/Deserts...Mostly clear skies with unrestricted vis will continue through Sun evening. West winds will gradually increase through Sun afternoon, then decrease gradually Sun evening, with surface gusts 25-40 kt from the mountain crests east through the desert slopes and into the deserts. && .MARINE... West to northwest winds will locally gust around 20 knots, possibly a little higher, in the outer coastal waters Sunday. Otherwise, no hazardous marine weather is expected through Thursday. && .SKYWARN... Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions. && .SGX WATCHES/WARNINGS/ADVISORIES... CA...NONE. PZ...NONE. && PUBLIC...10/JMB AVIATION/MARINE...Maxwell
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Strong west winds impacted the San Gorgonio Pass on the morning of May 1st. Wind gusts of 45-55 mph were common, with localized higher gusts. The Whitewater RAWS site recorded a peak wind gust of 61 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2022Every state in 2022This day in weather historyWarnings in California, May 2022
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 2026-09-24. Each event’s entry at NCEI: 1019562.