It's not fog as much as it is a low stratus deck. I'm no meteorologist, but
the reason I've heard for 40+ years is the juxtaposition of warm inland
temps and still pretty cold sea temps (north current). It usually lasts
until mid June, but is hanging around this year.

JB


"Andrew Sarangan" wrote in message
. 158...

The prog charts show IFR weather along the entire west coastline. I
understand how advection fog forms in the winter. But what is causing this
persistent fog this time of year? Upslope fog?