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National Weather Service cancels red flag warning for Bay Area

Monsoonal moisture steers away from region overnight, resulting in no thunderstorms

Smoke coming from the CZU Lightning Complex fires is seen coming over the top of the Santa Cruz Mountains in Mountain View on Aug. 20, 2020. Photo by Magali Gauthier.

The National Weather Service has canceled a red flag warning as thunderstorms anticipated in the Bay Area are now unlikely to show up at all.

A red flag warning is issued when warm temperatures, very low humidity and strong winds are expected to combine to produce an increased risk of fire danger.

Meteorologists said Saturday that was a slight chance for thunderstorms in the region, and that cloud-to-ground lightning may spark new wildfires. The warning was originally scheduled from 5 p.m. Sunday through 5 p.m. Monday in the North Bay mountains, the east bay hills, the Diablo Range and the Santa Cruz Mountains.

In addition to extreme temperature conditions, the forecast called for gusty outflow winds and increased risk of new wildfire starts and rapid spread.

"Much of the monsoonal moisture tracked offshore overnight and did not result in thunderstorm activity," the National Weather Service said early Monday morning in a tweet.

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National Weather Service cancels red flag warning for Bay Area

Monsoonal moisture steers away from region overnight, resulting in no thunderstorms

by /

Uploaded: Sat, Jul 17, 2021, 9:30 am
Updated: Mon, Jul 19, 2021, 8:26 am

The National Weather Service has canceled a red flag warning as thunderstorms anticipated in the Bay Area are now unlikely to show up at all.

A red flag warning is issued when warm temperatures, very low humidity and strong winds are expected to combine to produce an increased risk of fire danger.

Meteorologists said Saturday that was a slight chance for thunderstorms in the region, and that cloud-to-ground lightning may spark new wildfires. The warning was originally scheduled from 5 p.m. Sunday through 5 p.m. Monday in the North Bay mountains, the east bay hills, the Diablo Range and the Santa Cruz Mountains.

In addition to extreme temperature conditions, the forecast called for gusty outflow winds and increased risk of new wildfire starts and rapid spread.

"Much of the monsoonal moisture tracked offshore overnight and did not result in thunderstorm activity," the National Weather Service said early Monday morning in a tweet.

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