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Area forecast discussion 
National Weather Service San Francisco Bay area
850 PM PDT Tuesday Jul 28 2015

..very warm to hot inland temperatures expected through
Thursday...

Synopsis...hot temperatures are expected to continue across the inland
areas through midweek...with warm temperatures at the coast as
strong high pressure builds over the region. Temperatures cool
slightly late in the week along with increased monsoon moisture
approaching from the south. The monsoon moisture combined with
lingering instability will promote the possibility of showers and
isolated thunderstorms by the end of the week.

&&

Discussion...as of 9:00 PM PDT Tuesday...upper level high over
the southwest combined with offshore flow at the surface brought
very warm temperatures to the area. Inland areas were 4-8 degrees
warmer than yesterday. Kentfield tied a record high of 98 today
while many other places came within a degree or two of their
record highs. The warmest temperatures around the area today
included 104 in Livermore...105 in Healdsburg...and 103 in
Bradley. A few low clouds were observed along the mry Bay and Big
Sur coasts today but even so many coastal areas were in the 70s.

The upper high will continue to build westward the next couple of
days. The flow aloft will become southeast and this will bring
some middle and high level monsoonal moisture into the state. Models
showing some instability to the southern Monterey and San Benito
counties Thursday and over most of the district Friday so a
slight chance of showers or thunderstorms is in the forecast.
Another day of very warm temperatures can be expected Wednesday.
Temperatures will cool near the coast and around Santa Rosa
Thursday as a southerly surge develops. Inland areas will not cool
down until Friday.

The flow aloft will become more south to southwest Saturday and
Sunday ending the convective threat. The marine layer will deepen
a little more so there will be more coastal low clouds and fog.
Temperatures around the sfo Bay area will return to around normal
but inland areas will still be slightly above normal.

&&

Aviation...as of 4:54 PM PDT Tuesday...clear skies will prevail
across most area terminals through the forecast period with the
exception of Monterey Bay terminals that will see temporary ceilings
develop overnight. The typical afternoon seabreeze will ease this
evening with light to variable winds anticipated through the
night.

Vicinity of ksfo...VFR conditions will prevail through the forecast
period. Afternoon winds around 15 to 20 knots will ease overnight
becoming light.

Ksfo bridge approach...similar to ksfo.

Monterey Bay area terminals...VFR conditions will prevail through
most of the forecast period. Brief patchy LIFR ceilings/visibilities from
fog at or below sunrise Wednesday. Afternoon winds 13 knots or less will ease
overnight becoming light.

&&

Climate...here are record highs for Tuesday through Thursday
across our area along with the last year the record was recorded.

Sf Bay area.............7/29............7/30
Kentfield.............105/1954........105/1977
San Rafael............101/1977........102/1977
Napa..................105/1954........103/1977
San Francisco..........83/1977.........85/1986
sfo....................91/1977.........97/1977
Oakland................98/1977.........95/1977
Oakland Airport........91/1977.........95/1977
Richmond...............82/1967.........80/1993
Livermore.............108/1954........107/1979
Mountain View..........93/1977.........97/1977
San Jose...............95/1977........102/1995
Gilroy................102/1980........106/1977

Monterey Bay area.......7/29............7/30
Monterey..............86/1977.........91/1977
Santa Cruz............88/1964........102/1977
Salinas...............95/1977.........86/1995
Salinas Airport.......92/1977.........84/1977
King City............105/1977........106/1977

&&

Marine...as of 3:06 PM PDT Tuesday...prevailing winds will
continue to gradually decrease tonight before shifting towards the
south by tomorrow. Seas will gradually subside through the week.

&&

Mtr watches/warnings/advisories...
... Bay until 9 PM

&&

$$

Public forecast: west pi
aviation: CW
marine: drp
climate: Bell/Benjamin



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