Building surface high pressure across northern California and Oregon interacting with an upper trough across the Great Basin resulted in gusty northerly winds across the region. This along with dry humidity resulted in Red Flag conditions across the North and East Bay Hills as well as the Santa Cruz Mountains.
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 MTR wrote it up.
Building surface high pressure across northern California and Oregon interacting with an upper trough across the Great Basin resulted in gusty northerly winds across the region. This along with dry humidity resulted in Red Flag conditions across the North and East Bay Hills as well as the Santa Cruz Mountains. Gusts over the highest peaks exceeded 70 mph with widespread gusts above 1000 feet between 40-50 mph.
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 Francisco Bay Area, CA wrote its last area forecast discussion before the first event at Oct 6, 4:07 PM PST, 3 hours 53 minutes earlier.
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</html>2 high wind, 1 strong wind. Local standard time, as filed.
Station at Mt St Helena was gusting between 45-65 mph during this time frame with a peak gust of 70 mph.
Poverty RAWS reported wind gusts between 45-59 mph during this time frame.
Poverty RAWS site measured wind gusts 45-51 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, October 2018
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 2026-10-01. Each event’s entry at NCEI: 784036, 784023, 784022.