A strong pressure gradient developed during the evening of November 5 in between a strong upper low pressure system centered near the Four Corners area and a large high pressure ridge off the California coast. The strong gradient produced a period of gusty offshore winds over southern and eastern Kern County on November 6 with several stations the the Tehachapi and Grapevine areas as well as…
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The episode as NWS HNX wrote it up.
A strong pressure gradient developed during the evening of November 5 in between a strong upper low pressure system centered near the Four Corners area and a large high pressure ridge off the California coast. The strong gradient produced a period of gusty offshore winds over southern and eastern Kern County on November 6 with several stations the the Tehachapi and Grapevine areas as well as across the Mojave Deserts slopes and the desert areas measuring gusts in excess of 45 mph. The winds decreased during the morning of November 7 as gradients relaxed.
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 Nov 6, 2:46 AM PST, 4 hours 14 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Hanford CA 246 AM PST Wed Nov 6 2024 && .KEY MESSAGES... 1. There is a 50 to 95 percent probability of high temperatures of at least 70 degrees in the San Joaquin valley through Sunday before a cool down takes place on Veterans Day. 2. A Wind Advisory remains in effect through 1 PM Thursday afternoon for the Indian Wells Valley, Mojave slopes and Mojave desert. 3. There is a 25 to 45 percent probability of 0.10 inches of rain or more for the San Joaquin Valley on Veterans Day. 4. There is a 15 to 30 percent probability of greater than 6 inches of snow. This spans over 60 hours from Monday November 11th through Wednesday November 13th over the Sierra above 6000 feet. && .DISCUSSION... The upper low is splitting off the the main trough over the Northern Plains and retrograding towards the Colorado River Basin throughout the day today. This will help to continue to tighten the gradient and ramp up the Mojave Slope and Kern County Desert wind well into the advisory level. The probability of exceeding 45 mph is 40 to 60 percent for the Mojave Slopes that justifies keeping the advisory flying through Thursday at 1 PM. The upper heights slightly tweak up keeping the highs near Tuesday's highs around 70. The 50 to 95 percent probability of exceeding (PoE) 70 degrees seems very reasonable for the region today. Thursday through Sunday the upper low is enjoying its stay in the Colorado River Basin locking up the upper flow for the Golden State. The upper heights nudge up each day for a degree or two warming when translating down to the surface. This is because of the induced ridge between the Colorado River Basin upper low and the upper low over the Gulf of Alaska. The wild card is the tropical system in the Gulf of Mexico that could play into the upper flow pattern to either keep the upper lows locked up over the west or eject them and make the pattern more progressive. The GEFS ensemble run-to-run upper pattern is fairly consistent whereas the ECMWF ensemble is showing a faster ejection with the run-to-run difference in upper heights rising behind the upper low and digging a trough into the far eastern Pacific. All that said, the translated weather for Interior Central California will be seasonable on temperatures and dry with very little wind. The PoE of 70 degrees remains the same in the range of 50 to 95 percent for the San Joaquin Valley. Late Saturday through next Wednesday comes a change in the overall pattern with the upper trough becoming a closed upper low by Monday over Baja California and another strong trough moves through Northern and Central California. Focusing in on Monday through Tuesday. A low end Atmospheric River is being detected for the far northern section of the forecast area and more so for points north of the region. The IVT levels just squeak into the minimum of 250 kgm/sec levels for Yosemite Park which is still in the 90th to 97th percentile. This is the part of the GFS/GEFS solution vs. the ECMWF that does not support the opinion of the GFS with much lower IVT levels and no indication of any west to east tap of upper level integrated moisture. The Extreme Forecast Index, a reflection of the EC opinion, does not have anything special in the forecast. When viewing the NBM probabilities from Monday through Tuesday is currently 15 to 30 percent. The NBM deterministic solution does support up to 12 inches at the highest levels. There is quite the spread in solutions with this system and at the time frame the best way to handle it is low confidence. Looking at probabilities of near 100 percent the amount of snow falls to only near measure tenth of an inch on the low end. Hopefully the solutions come together better in the coming days. This system also has the probability of producing more Mojave Slope and Kern County Desert winds. The 8 to 14 day from CPC indicates a trend to cooler and wetter than normal for the region. && .AVIATION...VFR conditions will prevail across the central CA interior for the next 24 hours. && .AIR QUALITY ISSUES... ISSUED: 11/05/2024 15:58 EXPIRES: 11/06/2024 23:59 On Wednesday November 6 2024, Fireplace/Wood Stove Burning Status is: No Burning Unless Registered in Fresno and Madera Counties. Burning Discouraged in Kern, Kings, Merced, and Tulare Counties, and Kern (Greater Frazier Park Area) and Sequoia National Park and Forest. && .CERTAINTY... The level of certainty for days 1 and 2 is medium. The level of certainty for days 3 through 7 is low. 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... Wind Advisory until 1 PM PST Thursday for CAZ337>339. && Operations...Proton DSS..........JPK weather.gov/hanford
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
The PG&E station 5NW Lebec measures a peak wind gust of 59 mph.
The Southern California Edison station at Tejon Hills measures a peak wind gust of 65 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2024Every state in 2024This day in weather historyWarnings in California, November 2024
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: 1215659, 1215660.