It’s jacket season in the Bay Area. People spending Thanksgiving Day and Black Friday in the region can expect dry and mild weather and chillier mornings, with a frost advisory in effect in the North Bay and East Bay valleys.
Offshore winds trickled into the North Bay mountains on Tuesday night into Wednesday. Early morning temperatures are expected to range in the low-to-mid 30s in the valleys in the North Bay, East Bay, San Benito and southern Monterey Counties, Napa, Santa Rosa, Concord, Livermore, King City and other nearby areas while places closer to the water will be in the mid-to-upper 40s for low temperatures. Highs are expected to be in the 50s to 60s on Wednesday before warming up into the 60s and 70s on Thursday.
A frost advisory is in effect from 3 a.m. to 9 a.m. Wednesday and again late Wednesday night into Thursday morning.
“Places like the valleys tend to radiate heat so they tend to cool off faster and they tend to do it more efficiently because the winds die off at night and doesn’t really mix up the air as much,” said National Weather Service meteorologist Sean Miller. “The higher spots where the airs keep blowing, the temperatures stay a little warmer.”
Brrrrr! Early Wed morning will get chilly in some spots. Frost Advisory in effect 3-9 am for interior valleys as overnight lows could range 33°-40°. Protect sensitive animals & vegetation! #cawx #BayArea #CentralCA pic.twitter.com/ln9tmxH1Qk
— NWS Bay Area (@NWSBayArea) November 24, 2021
Sensitive plants should be covered or brought inside and any outdoor pets sensitive to those temperatures should also be protected, according to NWS.
Wednesday will also see some “breeziness” in the hills with gusts around 25 to 30 miles per hour in the hills and elevations above 2,000 feet.
Chances for frost should dissipate as temperatures warm up later in the week into the weekend.
Rain is unlikely for the holiday weekend, but the Bay Area could see some precipitation in early December.
“We have a big ridge of high pressure that’s over us right now and it’s just not budging anytime soon,” Miller said. “As long as it stays there, the rain stays to our north. There is the most active storm track to our north and they’ve been getting all the systems and rain but unfortunately down here, we’ve been high and dry.”
After “starting things off with a bang” with the record-shattering Oct. 24 storm, Miller said things are “quieter again” in terms of the rain and making a big dent in the ongoing drought.
“Unfortunately, it looks like we’ll be dry through the month,” Miller said. “There was some possibility at the end of the month but we don’t have a ‘slam dunk’ that will tell us we’ll definitely get some. We’ll have to watch and see.
It should be mostly sunny through the holiday in the Bay Area with not a lot of cloud cover or variability.
“It’ll be pretty nice, pretty quiet,” Miller said.
Source:: The Mercury News – Entertainment