Tropical Storm Rafael forms, expected to move into the Gulf of Mexico this week

Tropical Depression 18 formed Monday morning, and is expected to get the name Rafael before moving into the Gulf of Mexico this week, according to the National Hurricane Center.

Power shutoffs expected in Bay Area on Election Day

Six Bay Area counties are facing possible power shutoffs on Election Day and the following days, PG&E reported.

Sunny, windy
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Today will be sunny and windy. Highs in the high 70s.

Stronger winds boosting Bay Area fire danger

Last Friday’s system had a winter flavor with steady downpours in parts of the Bay Area and a fresh blanket of Sierra snow.  We might not be on a straight track toward winter just yet.  A couple of wind events will dry out Northern California and increase the fire danger.

Sunny and breezy today
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A sunny, breezy day is underway with temperatures ranging from low 60s at the coast to low 70s inland. San Francisco sunset, 5:08 PM.

Dry and cool today
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The latest storm is moving out with dry weather moving in for the rest of the weekend. Afternoon highs will range from low 60s at the coast to upper 60s inland.

Rain clouds moving out this weekend
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The Friday night rain event will last into early Saturday morning. Party sunny skies will highlight your Saturday forecast. Highs should warm into the 60s. Your Sunday forecast features sunny skies and gusty winds. Northerly winds will boost the fire danger. Fire danger could be a concern next week. Have a great weekend! -Mark

'Winter is here': Snow covers Hawaii's Mauna Kea

Snow fell on Hawaii's tallest peak this week, briefly turning the mountaintop into a winter wonderland.

Chilly, rain
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It will be chilly in the morning and will possibly rain tonight.

The snow is coming down: When will Tahoe ski resorts open?

The anticipation is building among skiers and snowboarders as the snow falls in the Sierra Nevada and resorts prepare for their opening day.

Sun and clouds
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There will be sun and clouds today. The showers should dry up by trick-or-treating.

A cool Halloween forecast
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Our next system will move into the Bay Area Wednesday night. Rainfall will be concentrated in the North Bay. A few light showers will move into the South Bay early Thursday morning. Your Halloween forecast features partly cloudy skies and cool temperatures. Highs should range from the upper 50s to the upper 60s. There is just the slight chance of a few sprinkles for the ghosts and goblins looking for candy. A stronger system is scheduled to arrive Friday night. Have a great Halloween! -Mark

San Francisco weather: The Bay Area forecast for Halloween

As the kiddos are gearing up to dress as Taylor Swift and characters from Despicable Me this Halloween, they will undoubtedly have this looming question: Will I have to wear a coat – maybe even a raincoat – over my costume? 

Rain arrives in evening
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Rain is expected to arrive later in the evening, mostly in the North Bay.

Magnitude 3.2 earthquake rattles Windsor

An earthquake with a preliminary magnitude of 3.2 struck northeast of Windsor on Tuesday evening, the U.S. Geological Survey said.

Sierra blanketed with October snow, more expected

A fall storm brought an inch of snow in the Sierra Nevada over a 24 hour period on Monday and Tuesday, and the forecast shows there's more on the way.

Shower chances increasing
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A cool weather system will approach the Bay Area Wednesday. After a chilly start, clouds will be increasing during the afternoon. Shower chances will be increasing Wednesday evening. Highs should range from the low 60s near the coast to the low 70s inland. Shower chances will favor the North Bay Thursday evening (Halloween).