Planning to Travel This Week? Weather in Valley and Sierra Could Impact You. - GV Wire - Explore. Explain. Expose
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Planning to Travel This Week? Weather in Valley and Sierra Could Impact You.



Travel in the Valley and Sierra will be tricky this week with fog, rain, and snow in the forecast. (GV Wire Composite/Paul Marshall)
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Dense sun-choking fog, the likes of which we’ve rarely seen in the Valley during and since the drought, returned in full force Monday, prompting the National Weather Service to issue a fog advisory and “high transportation risk” in fog-bound areas.

The National Weather Service posted an “experimental fog severity index” on its website that’s pretty much a travel advisory, said Jim Bagnall, a meteorologist with the National Weather Service in Hanford. “It’s kind of a new messaging format,” he said. “It’s basically a dense fog advisory.”

Driving conditions could be hazardous with visibility down to a few hundred feet, so drivers are cautioned to slow their speeds and watch for stopped vehicles.

Conditions will be similar on Tuesday morning, with more dense fog gripping the Valley.

Rain and Snow Coming

A high-pressure system parked over Central California that’s holding the fog bank in place will get a nudge Tuesday night with the tail-end of a low-pressure system that will bring “meager” rain to the Valley and snow to the Sierra. Less than a tenth of an inch of rain is forecast for Fresno by the time it ends on Wednesday, Bagnall said.

Temperatures will be warmer than normal, with Fresno’s forecast high of 60 on Tuesday and 61 on Wednesday, and about 10 degrees higher than normal through the end of the week, he said.

But more substantial amounts of rain and snow are on the horizon, starting Friday and continuing through Sunday, he said. Fresno’s forecast is for about 1 inch of rain through Sunday, with more rain falling in the foothills and lower Sierra elevations like Shaver Lake.

Snow will fall as low as 7,000 feet during the weekend storm, with as much as 18 inches of snow at higher elevations and a few inches at lower elevations, Bagnall said.

CHP Winter Driving Safety Tips

Nancy Price is a multimedia journalist for GV Wire. A longtime reporter and editor who has worked for newspapers in California, Florida, Alaska, Illinois and Kansas, Nancy joined GV Wire in July 2019. She previously worked as an assistant metro editor for 13 years at The Fresno Bee. Nancy earned her bachelor's and master's degrees in journalism at Northwestern University's Medill School of Journalism. Her hobbies include singing with the Fresno Master Chorale and volunteering with Fresno Filmworks. You can reach Nancy at 559-492-4087 or Send an Email

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