what if someone told you that they were
going to drop a 30-ton water balloon on
your neighborhood you would probably run
but in reality brave souls everywhere
take this possibility and strike and
confront it face to face fearlessly
cuz the 60,000 pounds of water that is
headed to your town is heading in the
form of father
Bogg is most likely to occur overnight
and really near dawn when the
temperature of the day is normally its
lowest it's these cold temperatures that
actually help produce the fog fog is
composed of tiny water droplets you
would find about 1,500 and 3,000
droplets per cubic inch and about fifty
six thousand gallons water is in one
cubic mile of fog which is a whole lot
of water each font has its own
personality and you have many subsets
under there the types of bugs are
radiation fog sea fog brown paw
convection blog upslope fog valley fog
ice fog and artificial thought one
particular fascinating fog would be San
Francisco where they've named it Carl
it's particularly challenging to know if
it's gonna affect San Francisco or if
it's going to affect Oakland one could
have 10 miles of visibility and you
don't want a quarter-mile visibility
just because of subtle differences in
wind flow so Carl very much has a mind
of its own that uses the fog around the
bay fog is not only climatically
significant it is also culturally
significant back in 1776 General George
Washington and his commanders were able
to escape capture by the British Army by
using fog as a decoy and our concealment
of their location fog also affects sound
the higher frequency the sound the more
it affects it the lower frequency sounds
doesn't affect it as much thus when
ships are boats they use a foghorn of a
very low frequency so they can warn
other vessels that they're there
here at UPS airlines we have adapted to
fog over time we've gone to mini
category three aircraft or seven five
seven of only seven five seven seven six
seven s or category three aircraft not
only requires six hundred foot
visibility to land which is much
visibility on every runway that you're
landing on there is a runway visible
range called rbr and that's a laser
system out on a runway that measures the
visibility and then the airports
themselves have what's called an
instrument landing system it's a radio
frequency that the pilots can picked up
on in the cockpit along with a lighting
system out on the runways that allow you
to land at these low visibilities
Bob forecasting to me is my expertise so
since I'm a meteorologist this is the
way to do it my name is Jeff Peters and
I'm an aviation meteorologist at UPS
airlines
you