Strong thunderstorms generated strong winds across sections of San Luis Obispo and Ventura counties. The winds knocked down several trees and power lines in these areas.
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The episode as NWS LOX wrote it up.
Strong thunderstorms generated strong winds across sections of San Luis Obispo and Ventura counties. The winds knocked down several trees and power lines in these areas.
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 Sep 23, 11:04 PM PST, 1 hour 56 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 1204 AM PDT Wed Sep 24 2025 .SYNOPSIS...23/123 PM. Monsoon moisture will increase tonight resulting in increasing shower and thunderstorm chances through Wednesday, especially west of Ventura County. Temperatures will cool off tomorrow through the rest of the week. && .SHORT TERM (WED-SAT)...23/727 PM. ***UPDATE*** There has been a great deal of activity with the low system as it moved from southeast to northwest along the coast. Nearly 1,000 lightning strikes per the sensors, and several brief heavy showers in western Santa Barbara County. The storms are moving very quickly so there hasn't been a chance for much rain accumulation. The area around Vandenberg has a few gauges reading 0.3 - 0.5 inches, but most stations that are showing anything at all are more like 0.1 inches. Still expecting more activity overnight as models show the low moving back over the area later tonight. SPC significant hail chances begin to increase around 11pm in western SBA Co and southern SLO Co. ***From Previous Discussion*** A persistent upper low just off the southern California coast continues to entrain moisture from the south which is resulting in increasing shower and thunderstorm activity over the coast waters. However, the upper low has pulled a little to the west and this has so far kept the mainland convection-free. It's also steering the larger area of moisture and instability, near 33n/123w at 2pm, farther west as well. That was supposed to be the primary weather maker tonight for the Central Coast so for right now that heavier activity appears to be maintaining an over water trajectory and minimal threat to land. However, there is still moisture entering the area from a more easterly path and with unstable air in place there is still at least a 40-60% chance of showers and storms tonight across the Central Coast. But those showers will be less widespread with less chances for training and likely lower accumulations overall. Elsewhere, including Ventura and LA Counties chances for precipitation are much lower and any rain should be brief with minimal impacts. The upper low is expected to move onshore Wed night and Thursday near Monterey and then drift slowly south back to So Cal Friday. However, its tap of moisture will cease after Wednesday so at most there may be a slight chance of showers and thunderstorms over the mountains during the afternoon. Otherwise, temperatures will be cooling the rest of the week. By Friday valley and desert highs will only be in the mid 80s and coastal areas in the 60s and 70s. .LONG TERM (SUN-WED)...23/219 PM. The chances for afternoon mountain and desert convection will continue into Saturday before finally the upper low's week plus vacation over southern California will come to an end as most of the ensemble solutions are favoring a high pressure ridge developing for a return of warmer weather. Humidities may remain on the higher side for the foreseeable future as SST's locally are near 70. && .AVIATION...24/0703Z. At 0515Z at KLAX, the marine layer was 700 ft deep. The top of the inversion was 1800 feet with a temperature of 25 C. Good confidence in TAFs for KBUR, KVNY, KPMD and KWJF. Pretty good confidence in TAFs for KPRB, KSBP, KSMX and KSBA. VFR cig and vis are likely but there is a 50 percent chc of TSRA through 16Z. Brief MVFR cig/vis possible under heavier showers or TSRA. Low confidence in TAFs for KOXR and KCMA. There is a 30 percent chc of no low clouds. If low clouds do arrive low confidence in timing of arrival and dissipation. There is a 20 percent chc of a TSRA through 16Z Moderate confidence in TAFs for KSMO, KLAX and KLGB. Flight cat changes could be off by +/- 90 minutes and cig hgt by 200 ft. KLAX...Moderate confidence in TAF. VFR conds could arrive as early as 16Z or as late as 20Z. There is a 25 percent chc of 1SM BR OVC003 conds through 15Z. Any east winds should be less than 7 knots. KBUR...High confidence in forecast. && .MARINE...23/150 PM. Moderate confidence in the current forecast. Local Small Craft Advisory (SCA) level wind gusts are possible through tonight across the entire waters, otherwise winds and seas will remain below SCA levels. For the water southwest through northwest along the Central Coast, there is a 30-50 percent chance of SCA level winds on Wednesday afternoon and evening, increasing to 50-70 percent on Thursday and Friday afternoon and evening. The highest chances will be for the waters beyond 30 NM offshore. Inside the southern California bight, there is a 30-50 percent chance of SCA levels winds Wednesday and Thursday during the afternoons and evenings. The highest chances will be for the western Santa Barbara Channel. Moisture with a tropical disturbance to the south will bring a chance of showers and thunderstorms to the coastal waters through Wednesday night. Low confidence exists in the exact timing and location of showers and thunderstorms. However, current guidance suggests more widespread thunderstorm activity will be for the waters north and west of San Miguel Island tonight. Any thunderstorm that forms will be capable of producing locally gale force winds and rough seas, dangerous lightning, heavy rainfall with reduced visibility, small hail, and waterspouts. && .BEACHES...23/101 AM. A moderately-long period southerly swell is progged to develop across the coastal waters over the weekend as Hurricane Narda will enter a window favorable for southerly swells. Hazardous rip currents and elevated surf are very likely to develop at Los Angeles and Ventura County beaches over the weekend and into early next week, but there is a moderate chance that a high surf advisory will be needed over the weekend into Monday night or Tuesday. If planning to head to the beach this weekend, please check in with a lifeguard before entering the water. && .LOX WATCHES/WARNINGS/ADVISORIES... CA...NONE. PZ...NONE. && PUBLIC...MW AVIATION...Rorke MARINE...Hall/KL BEACHES...Hall SYNOPSIS...MW weather.gov/losangeles Experimental Graphical Hazardous Weather Outlook at: https://www.weather.gov/erh/ghwo?wfo=lox
The Vandenberg AFB radar (KVBX), 93 km away, was scanning. The volume nearest the first event began at 08:57 UTC.
3 thunderstorm wind. Local standard time, as filed.
Strong thunderstorms generated gusty winds around the 7400 block of Vineyard Drive in the community of Templeton. A couple trees and power lines were knocked down.
Strong thunderstorms generated gusty winds in the community of Cambria. Law enforcement reported a tree was knocked down.
Strong thunderstorms generated gusty winds in the community of Ojai. Law enforcement reported a couple trees were blown down in the 1000 block of Rancho Drive.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2025Every state in 2025This day in weather historyWarnings in California, September 2025
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: 1291530, 1291531, 1291532.