A Dense Fog Advisory remains in effect until 11AM this morning for the North Bay and Easy Bay Interior Valleys. An upper level ridge axis will pivot W to E across the West Coast today. Locations with fog this morning will eventually join the remainder of our service area with mostly sunny skies, light winds and above normal temperatures (5-10 degrees for the interior). A meandering surface high over our coastal waters continues to pull weak flow offshore from the Bay Area south into the Central Coast, seen well in low level boundary layer wind fields. Fog is expected to develop once again later tonight, mainly across the North Bay and portions of the East Bay, however coverage should be less than what we`ve seen the past couple of nights. there are a variety of solutions, all which have reasonable outcomes (boom or bust). This results in a lower-confidence PoP forecast. What I can say with confidence is that many if not most areas will continue to have at least a 50 to 60 percent chance for measurable rainfall given that we`ll still have broad ascent with a moist regime (though PWATs will decrease). While it won`t necessarily rain continuously through the day at all locales, intermittent isolated to scattered precipitation will continue and this is supported by hi-resolution model guidance.
