What causes summer fog along west coast?

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?

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?

Here in San Francisco, it 'lives' off our coast during the summer - should
make for more opportunities for getting some more IMC hours in the last part
of my instrument training.

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--
=-----
Good Flights!

Cecil
PP-ASEL
Student-IASEL

Check out my personal flying adventures from my first flight to the
checkride AND the continuing adventures beyond!
Complete with pictures and text at: www.bayareapilot.com

"I fly because it releases my mind from the tyranny of petty things."
- Antoine de Saint-Exupery -

"We who fly, do so for the love of flying. We are alive in the air with
this miracle that lies in our hands and beneath our feet"
- Cecil Day Lewis -
"Jim Baker" wrote in message
...
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?

Right. I was speaking of SoCal where it usually leaves by mid-June.

JB

"Cecil Chapman" wrote in message
. com...
Here in San Francisco, it 'lives' off our coast during the summer - should
make for more opportunities for getting some more IMC hours in the last
part
of my instrument training.

--
--
=-----
Good Flights!

Cecil
PP-ASEL
Student-IASEL

Check out my personal flying adventures from my first flight to the
checkride AND the continuing adventures beyond!
Complete with pictures and text at: www.bayareapilot.com

"I fly because it releases my mind from the tyranny of petty things."
- Antoine de Saint-Exupery -

"We who fly, do so for the love of flying. We are alive in the air with
this miracle that lies in our hands and beneath our feet"
- Cecil Day Lewis -
"Jim Baker" wrote in message
...
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?

You're lucky! Though I wouldn't be a 'good' Northern Californian if I
didn't include the jibe that your fog is then replaced by the L.A. smog
GRIN...... just kidding! ;-)

--
--
=-----
Good Flights!

Cecil
PP-ASEL
Student-IASEL

Check out my personal flying adventures from my first flight to the
checkride AND the continuing adventures beyond!
Complete with pictures and text at: www.bayareapilot.com

"I fly because it releases my mind from the tyranny of petty things."
- Antoine de Saint-Exupery -

"We who fly, do so for the love of flying. We are alive in the air with
this miracle that lies in our hands and beneath our feet"
- Cecil Day Lewis -
"Jim Baker" wrote in message
...
Right. I was speaking of SoCal where it usually leaves by mid-June.

JB

"Cecil Chapman" wrote in message
. com...
Here in San Francisco, it 'lives' off our coast during the summer -
should
make for more opportunities for getting some more IMC hours in the last
part
of my instrument training.

--
--
=-----
Good Flights!

Cecil
PP-ASEL
Student-IASEL

Check out my personal flying adventures from my first flight to the
checkride AND the continuing adventures beyond!
Complete with pictures and text at: www.bayareapilot.com

"I fly because it releases my mind from the tyranny of petty things."
- Antoine de Saint-Exupery -

"We who fly, do so for the love of flying. We are alive in the air with
this miracle that lies in our hands and beneath our feet"
- Cecil Day Lewis -
"Jim Baker" wrote in message
...
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?

"Cecil Chapman" wrote in message
news:rtvEc.79517

Here in San Francisco, it 'lives' off our coast during the summer -

It lives off the coast of Oregon, too, coming in only on the occasion that a
VFR pilot is trying to land along the coast.

-c