The National Weather Service in San Francisco has projected a few days ahead that might allow Bay Area residents to hang up their windbreakers briefly. Forecasters are predicting a modest warmup for today and tomorrow, with temperatures rising slightly above normal thanks to progressive upper-level shortwave ridging over the area, as per the National Weather Service.
Despite the hopeful glimpse of warmth, the long-term forecast indicates that things are set to change by Wednesday. "Primarily zonal upper flow across our area on Wednesday will result
in the warmest day of the week before a deepening trough leads to height falls, cooler temperatures and a more robust marine layer," the National Weather Service reports. And it seems that by Thursday, the gusty onshore winds we're so familiar with will pick up, potentially reaching up to 40 MPH in higher elevations, passes, and gaps come Saturday. It may be wise to keep the jackets and windbreakers within reach; the Bay Area's weather, true to form, is holding onto its unpredictable nature.
In aviation, VFR conditions are expected to persist throughout the day. However, the stratus is forecasted to return this evening, increasing IFR conditions, particularly at coastal airports. The National Weather Service advises, "Highest confidence in IFR CIGs at HAF, MRY, and SNS with moderate confidence in IFR CIGs reaching OAK tonight." Passengers should be prepared for possible delays as the low marine layer stratus returns overnight into early Wednesday morning.
