Deep trough moved through Central California producing a strong winds and a significant cool down in temperatures across the region. The significant drop in temperatures helped to generate a strong pressure gradient.
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 HNX wrote it up.
Deep trough moved through Central California producing a strong winds and a significant cool down in temperatures across the region. The significant drop in temperatures helped to generate a strong pressure gradient. As a result, very strong winds were observed.
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 Hanford, CA wrote its last area forecast discussion before the first event at Jun 21, 11:04 AM PST, 1 hour 26 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Hanford CA 1204 PM PDT Sat Jun 21 2025 .KEY MESSAGES... 1. Red Flag Warning in effect for the Mojave Slopes and Desert, the Indian Wells Valley, the West Hills and the San Joaquin Valley until 5 AM on Sunday. 2. Major cool down Today into Sunday with humidities slowly recovering. Better recovery occurring across the Sierra Nevada. 3. Strong Winds with gusts reaching between 45 and 60 mph. A High Wind Warning is in effect for the Mojave Slopes through 2 AM Sunday and a Wind Advisory is in effect for the same time in the Mojave Desert. Strong winds will also be observed over the West Hills along the I-5 corridor. && .DISCUSSION... Deep trough digging over Central California is providing the area with a significant cool-down. Yet, along with a drop in temperatures, winds have seen a significant increase as strong winds blanket Central California. The lack of moisture across the region has also elevated the concerns of fire starts as windy and dry conditions exist this Saturday. Both wind fire weather products are in effect during trough passage with conditions settling down on Sunday. After having temperatures reach the century mark late in the week, Probability of Exceedance (PoE) of reaching 90 degree will remain at low percentages over the weekend as Valley temperatures struggle to reach 90 degrees. PoE of 90 degrees reaches the 50% mark by Monday and shows a steady claim during the week. PoE of 100 degree hits the 50% mark on Thursday with PoE of reaching 95 degrees at 80%-95%. Therefore, will expect max temperatures to hover near 100 degrees later in the week and into the weekend. While some uncertainty exist in the later periods, will expect max temperatures to hit 100 degrees at the more favored locations around the Friday and next Saturday time frame. Wind will remain an issue as the next disturbance is ready to cross the district later today. Ensembles surface pressure analysis is indicating the gradient from KSFO to KLAS reaching a range of 16mb-19mb this afternoon. At these levels, wind gusting to 50-60 mph have high confidence of occurring as PoE values sit at around 70%-90% range. Therefore, will maintain the High Wind products in place and extend the Red Flag Warning through Sunday as humidity will be slow to rise during the weekend. By Sunday afternoon, ensembles cut the gradient in half as winds are expected to diminish. Afterward, the slow building of the ridge pattern will keep winds down as temperatures take center stage for the next warm-up later in the week. && .AVIATION... 18Z Update: VFR conditions will prevail for the next 24 hours across the Central California Interior. A 70%-90% chance of surface Wind G50KT across Kern County near KMHV and KIYK through 10Z to 12Z Sunday. A 30% chance of G25KT across the San Joaquin Valley between 02Z-08Z Sunday. && .AIR QUALITY ISSUES... ISSUED: 06/20/2025 14:52 EXPIRES: 06/21/2025 23:59 None. && .CERTAINTY... The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is medium. Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback. && .HNX WATCHES/WARNINGS/ADVISORIES... High Wind Warning until 2 AM PDT Sunday for CAZ338. Wind Advisory until 2 AM PDT Sunday for CAZ337-339. Red Flag Warning until 5 AM PDT Sunday for CAZ298-299. Red Flag Warning until 5 AM PDT Sunday for CAZ579-580. && Public/Aviation....Molina weather.gov/hanford
The national radar mosaic for the moment the first event began.
5 high wind. Local standard time, as filed.
Mesonet station 2 miles NNE of Grant Grove.
Mesonet Station Bijc1 Bird Spring Pass.
Mesonet station 5 miles Northwest of Mojave.
Mesonet Station at Indian Wells Canyon.
Mesonet Station 649SE Sce Cottonwood Creek West.
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, June 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: 1272399, 1272397, 1272485, 1272401, 1272434.