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Driving in Fag, lMfst and Haze
Fog can occur with high humidity or
heavy frost. It can be so mild that
you
can
see through it
for
several hundred
feet (meters). Or it might be so thick
that you
can
s'ee
only
a f e w feet
(meters) ahead. It'may come suddenly
to an athenvise dear road. And it
can
be a mjolc hazard.
When
you drive into .a
fog
patch, your
visibility
will
be. reduced quickly. The
biggest dangers
'are
strilung. the vehicle
ahead or being
struck by the one behind.
Tryto "read" the fog density down the
mad. If the vehicle ahead starts to
become less clear or, at night,
if
the
tai11,ights are hader
to
see,
the fog is
probably thickning. Slow down to give
tr&c
behind you
a chance to -slaw.down.
Everybody then has a .betta -chance to
avoid hitting the vehide ahead.
A patch of dense fog may
extend
only
€or
a
few feet (meters) or for miles
(kilometers); you can't really tell while
you're in it. You. can only treat the
situation with extrbme care.
One cornmon
fog
condition-
sometimes called
mist
or
ground fag-
can happen in weather that .seems
perfect, especially
at night
or in the
early morning in valley and low, marshy
areas.
You
can
be
suddenly enveloped
in thick, wet haze that may even coat
your windshield. You can often spot
these fog patches or mist layers with
Y O W ~
headlights. But sometimes they
can
be waiting for you as you come over
a
h i l l or
dip into a shallow valley. Start
yaur windshield wipers and washer to
help clear accumulated road dirt. Slow
down carefully.
Tips on Driving in
Fog
If
you get caught in fog, turn your
headlights on low bearit, even in
daytime. You'll see-and be seen-
better. Use your fdg lights.
Don't use your high beams. The light
wil1,bounce off the water droplets that
make
up fog and reflect back at you.
Use your defogger. In high humidity,
even a light buildup of moisture on the
inside of the glass will -cut down on your
already
limited visibility. Runyour
windshield wipers .and washer
occas.itmdl.y. Moisture
c5u1
bui1d:up on
the outside. glass, and what .seems to be
fog may'actnrilly b-e-moisture on the
outside of yoarwindshield.
Treat dense fog as
an
emergency.
T r y
to
find. a-place to pull off the road, Of
course you want to respect another's
property, but you
might need-to put
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