weather

Yosemite Falls flows in December. (CBS SF)

Forecasters Predict Stormy Sierra Memorial Day Weekend

It could be a stormy Memorial Day holiday, if your travels take you to Lake Tahoe, Yosemite or the High Sierra this weekend.

05/21/2015

Image of El Nino conditions in the Pacific Ocean in December 1997.The white and red areas indicate warmer waters. (NASA)

Scientists Now Predicting Near 100% Chance Of Strong El Nino, But Rainfall Isn’t Always Guaranteed

Climate experts say El Nino is growing stronger and could bring drought-busting wet weather to California this year.

05/21/2015

Golden Gate Bridge, San Francisco, California (Getty Images)

Roberta Answers, ‘When Will This Gray May Weather End?’

Here’s the deal. The San Francisco Bay Area has been unseasonably cool since right around May 5.

05/21/2015

LightnLightning

Late Season Thunderstorms A Thrill For Bay Area Sky Watchers

I remember vividly in 2012 the Bay Area experienced 6 days of thunderstorms. I loved it! But thunderstorms are not embraced by all, some people are downright fearful of thunderstorms (and so are some pets). And with our recent drought, thunderstorms can be a huge concern due to fire danger.

05/15/2015

The golf course at Stanford University. (CBS)

Man Temporarily Loses Hearing, Workers Take Cover As Lightning, Thunder Roll Through Palo Alto Area

Lightning strikes and thunder forced workers at Stanford University’s golf course to take cover, causing one man to temporarily lose hearing due to the noise.

05/14/2015

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Entire Month’s Rainfall Drops On South Bay In A Day, Along With Hail, Lightning And Thunder

More rain fell in the Bay Area on Thursday than normally falls for the entire month of May as a spring storm moved through with lightning, thunder, hail, and downpours.

05/14/2015

Doppler, storm, lightning

Dozens Of Lightning Strikes Reported As Showers Move Across Bay Area

The Bay Area saw widespread showers across the Bay Area accompanied by dozens of lightning strikes over the past few hours.

05/14/2015

Photographer Brian Kiley sets up his camera under altocumulus clouds. (CBS)

‘Warning Clouds’ Above Bay Area Signal Coming Of Wet Weather

They can be considered Pilots, signaling “bumpy” weather ahead! Some of the altocumulus clouds can develop into towering thunderstorms.

05/13/2015

(Getty Images)

Rain, Thunderstorms Expected In Bay Area Starting Wednesday Evening

Another late-season storm system is expected to arrive in the Bay Area as early as Wednesday evening.

05/12/2015

Escape From Alcatraz

Bay Water Too Cold For You? Blame The Wind

In most years, the winds also help push ocean surface waters, churning up cold water from down below. That process, called upwelling, did not happen as much over the winter.

05/12/2015

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