Weather Forecasting
This
section is an excerpt from the book,
Camping’s Top
Secrets by
Cliff Jacobson.
To see a full review
for this book, check out Camping’s Top
Secrets.
It
is full of useful tent camping tips for spotting bad weather
while camping:
“Every outdoors person should have a basic
understanding of weather phenomena and be able to make
reasonably accurate short-term weather
predictions.
Some campers take
forecasting quite seriously; they arm themselves with
min/max thermometers, barometers, cloud charts, and weather
tables.
Whether or not this
paraphernalia will improve your short-range forecasts is
debatable.
After all, primitive man
is right on target more than 80 percent of the time simply
by looking at the sky, sensing the wind, and “feeling” the
weather.
You can approximate this
enviable success rate by applying these time-proven
principles:
1.
“Red sky at night,
sailor’s delight; red sky in the morning, sailor take
warning.”
Translation: A red
morning sky indicates possible rain that day; a red evening
sky suggests the next day will be
clear.
The color difference
relates to the reflective value of the low-lying cloud
cover.
2.
Check the grass, tent,
canoe bottom, or whatever for the presence of dew in late
evening or early morning.
A heavy dew at either of
these times usually suggests eight to twelve hours of good
weather.
3.
Watch the smoke from
your campfire.
If it hangs low (a function of low pressure) to the
ground, rain is on the way.
If it rises high into
a nice vertical column (high pressure), count on good
weather.
4.
Check out the air
bubbles in your coffee cup.
They’ll ring the edges
of the cup when a low pressure (rain) system sets
in.
5.
You can sometimes smell
a coming storm, as the low pressure allows methane (swamp
gas) to rise and drift with the
current.
In boggy
areas the odor is quite
pronounced.
6.
“When the peacock loudly
bawls, there’ll be both rain and
squalls.”
Translation:
Birds sing loudly just before a
storm.
7.
Geese and seagulls
usually won’t fly just before a storm.
Low-pressure air is thin
and it’s hard for them to get
airborne.
8.
The ears of many animals
are sensitive to low pressure.
Wolves will howl before
a storm.
Dogs will become nervous
and emit howls or howl-like
sounds.
9.
To determine the
distance of a lighting strike, count the seconds between the
flash and the thunder boom.
Divide by five and
you’ll have your answer in
miles.
10.
Noises all become louder and more vibrant just before a
rain, because the sound is reflected and magnified by the
low clouds.
The croaking of frogs,
yodel of loons, etc., will echo loudly if rain is
imminent.
11.
Be alert for changes in
wind direction.
Storms are whirlpools of wind that rotate
counterclockwise in the Northern Hemisphere (remember high
school science?).
The adage “Wind from the south brings rain in its mouth”
is the keystone here, as the wind that precedes a storm usually
blows from the south.
Counterclockwise wind
shifts therefore usually bring rain, while clockwise
movements indicate fair weather.
You can keep these
directional changes straight by remembering the
rhymes…
“Wind from the east brings weather that’s
a beast.”
(Suggest a
counterclockwise wind shift from the south to east, east to
north, and so on.)
“Wind from the
west brings weather that’s best.” (Suggests a clockwise
wind shift from south to west, north to east,
etc.)
12.
Most everyone knows that
frogs emerge from the water just before a storm and croak
their fool heads off.
Frogs breathe partly
through their skin (which must be kept moist), so when the
humidity rises just before a storm, they climb ashore and
sing happily.
13.
If you’re a canoeist,
you know that about eight to twelve hours before a storm,
mosquitoes and blackflies begin to swarm and bite more than
usual.
Up to two hours before
the storm they quit biting
altogether.
14.
Check out the rainbow: A
heavy red may mean more rain; vibrant rich blue suggests
clear skies ahead.
15.
Here’s an old Down East
proverb: “Filly tails make lofty ships wear low
sails.”
Translation: Thin,
hairlike clouds forecast rain within the
day.
These “filly tails” are
really streaks of ice thrown skyward by the rising air of a
coming storm.
16.
“A mackerel sky [tiny
scalelike clouds that resemble a mackerel’s back], just
twenty-four hours dry.” Translation: Expect rain within the
next day!
17.
Any fireflies
around?
When rain approaches,
these little insects light up the woods, according to this
rhyme: “When the little glow bug lights his lamp, the air
around is surely damp.”
18.
Listen for the rustle of
leaves as the wind precedes the
storm.
19.
If you can’t see the
sharp points on a half moon, rain may be on its
way.
Translation: Low clouds
and haze distort sharp
images.
20.
Bright, twinkling stars
usually indicate high altitude winds, which may be bringing
in a storm.
21.
There’s a good chance
that foul weather (rain or snow) will fall within three days
of a new moon phase.
22.
“The weather out west
had best be best, for tomorrow will bring it to you to
test!”
This means that in all
likelihood, the weather system to your west will be at your
location tomorrow.
23.
In summer a sun dog, or
halo around the sun, generally predicts the coming of
rain.
Sun dogs are caused by
sunlight streaming through the ice particles of high
cirrostratus clouds.
A halo around the moon
may also indicate rain.
24.
“Evening fog will not
burn soon, but morning fog will burn before high
noon.”
Invariably, a fog-borne
day will become perfectly clear (an ideal day) by
noon.
Fog forms when water
vapor reaches the dew point and condenses on dust particles
near the ground.
When the day heats up,
the fog evaporates and turns to invisible water
vapor.
25.
“Short notice, soon it
will pass.
Long notice, expect it
to last.”
Watch the
clouds.
If they take several
days to build, a warm front- and prolonged rain- is usually
in the offing.
If the storm system
builds suddenly, it will probably pass
quickly.
26.
And of course everyone
knows: “Rain before seven, dry by
eleven.”
*To
get some unconventional camping tips, take a look
at outdoor camping
tips.
|