It is raining? Bay Area could see isolated storms as Hurricane Kay dissipates


Parts of the Bay Area could see isolated downpours through Tuesday as moisture from remnants of Hurricane Kay creeps north after rocking Southern California with intense winds and rain.

Some Bay Area residents took to social media on Saturday marveling at the rain falling mostly in the East Bay, the result of scarce tropical humidity in the atmosphere helping to keep temperatures low for just four days after California set records for the highest temperatures on record.

“The combination of warm temperatures mostly inland and high humidity everywhere is causing a few showers to form,” National Weather Service meteorologist Rick Canepa said. “It’s very localized and it could be brief moderate rain or brief heavy rain, the key word being brief.”

It won’t be like the atmospheric rivers the Bay Area is used to in winter, but isolated storms could arise anywhere and are hard to predict, but will usually be very patchy, localized downpours that typically last between 30 and 45 minutes if you’re lucky.

There could be enough moisture in the atmosphere to develop larger thunderstorms, especially at night, as temperatures in the upper atmosphere are cooler, which helps store moisture as rain clouds. . The humidity will take some time to move east toward Nevada, and forecasters expect cooler temperatures and higher humidity through Tuesday.

“It’s only this week that we hit records and all-time records, so it’s pretty quick,” Canepa said.

The tropical climate could also help firefighters battling blazes in the Sierra. The Mosquito Fire that has already scorched thousands of acres in El Dorado County could benefit from thunderstorms over the next few days, Canepa said.

“They’ll have very good showers there,” he said.

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