
The National Weather Service (NWS) in San Francisco has issued a Frost Advisory that will remain in effect until 9 AM this morning for southern Monterey Co due to temperatures forecasted in the lower 30s. NWS San Francisco has advised that these subfreezing temperatures could pose hazardous conditions for unsheltered populations and individuals without access to adequate heating.
In the immediate forecast, Bay Area residents can expect "mostly clear skies, dry weather, light winds, cold mornings and mild afternoons" to persist through the week, as reported by NWS San Francisco. Despite slightly higher surface dew points, which should limit cooling, early morning temperatures will still be notably chilly, with the low 30s across inland areas of the Central Coast and upper 30s to low 40s in the Bay Area.
The NWS San Francisco's long-term forecast suggests a weak cold front will cross the region by Friday, bringing cooler temperatures and some clouds. However, no rain is currently predicted. This front will also usher in more widespread frost advisories during the weekend and early next week, and a marine layer may also appear.
More uncertain is the forecast for potential strong offshore winds early next week, where the "uncertainty balloons by Saturday," according to NWS San Francisco. The forecast mentions a bi-modal solution in the ensemble guidance, making it tricky to provide a straightforward prediction. Nevertheless, NWS San Francisco is leaning towards the less aggressive model, which predicts gentler winds. However, they also message the possibility of very strong offshore winds due to emerging solutions suggesting critical conditions.
Maritime conditions remain mild for now, with high pressure to the north keeping light and variable winds over the coastal waters. Northerly winds are expected to increase by Thursday. For beachgoers, there's a receding northwest swell and a slight risk of sneaker waves. NWS San Francisco reminds visitors and locals to stay vigilant and never turn one's back on the ocean.