Title: Weather Proverbs
1Weather Proverbs
2People have been forecasting the weather for
centuries.
- They once looked to plants and animals for hints
about what the weather would do. For example,
before it rained, some people often observed that
ants moved to higher ground, cows lay down, pine
cones opened up, frogs croaked more frequently,
and sheep's' wool uncurled. Over the years,
people began to notice other natural clues to
upcoming weather, and several weather "sayings"
grew up over the years.
3A Grain of Salt
- When looking at weather proverbs, keep this in
mind They are usually based on someones
observations and not on scientific studies.
Because climates and weather patterns differ
throughout the world, a weather proverb based on
observations in one location may not be valid in
another location. Some proverbs arose simply from
coincidence, not weather patterns, and therefore
may seldom hold true. But under certain
circumstances, some proverbs do hold up to
science. Here are some that, under the right
circumstances, have proven valid.
4Red Sky at night, sailor's delight. Red sky in
the morning, sailor take warning."
- This one has been around a long time. In fact,
compare it with this Biblical passage from
Matthew 161-3 "When evening comes, you say,
'It will be fair weather, for the sky is red,'
and in the morning, 'Today it will be stormy for
the sky is red and overcast." - When the western sky is especially clear, there
is often a red sunset. That's because as the sun
sets, its light shines through much more of the
lower atmosphere, which contains dust, salt,
smoke and pollution. These particles scatter away
some of the shorter wavelengths of light (the
violets and blues), leaving only the longer
wavelengths (the oranges and reds.) If an area of
high air pressure is present, the air sinks. This
sinking air holds air contaminants near the
earth, making the sunset even redder than usual.
This would be the red sky at night. - In the middle latitudes of the northern
hemisphere, weather systems most often approach
from the west. Since high pressure generally
brings fair weather, this type of red sky at
sunset would indicate that clear weather is
approaching, which would "delight" a sailor. If
the sky is red in the eastern morning sky for the
same reasons as above, then the high pressure
region has most likely already passed from west
to the east, and an area of low pressure may
follow. Low pressure usually brings clouds, rain
or storms, a warning for sailors.
5Mare's tails and mackerel scales make tall ships
take in their sails.
- Mares tails refers to cirrus clouds and a
mackerel sky refers to cirrocumulus clouds, which
often precede an approaching warm front, which
will eventually bring veering winds (changing
from northeast and east over to southwest and
west) and precipitation. - This may necessitate changing the sails to
accommodate the new wind direction and speed.
6Clear moon, frost soon.
- If the atmosphere is clear, the surface of the
earth will cool rapidly as heat is radiated away
at night. There is no "blanket" of clouds to keep
the heat that the ground absorbed during the day
from radiating back up into space. If the
temperature is low enough on these clear nights
and there's no wind, frost may form.
7A year of snow, a year of plenty.
- A continuous covering of snow on farmland and
orchards delays the blossoming of fruit trees
until the season of killing frosts is over. It
also prevents the alternate thawing and freezing
which destroys wheat and other winter grains. - OR
- In some areas, melting winter snow supplies the
runoff for streams during spring and summer.
Plenty of snow means plenty of irrigation water.
8Halo around the sun or moon, rain or snow soon.
- The halo around the sun or moon is a layer of
cirrus clouds made of ice crystals. These ice
crystals act as tiny prisms, forming a white or
sometimes colorful halo around the sun or moon.
This cirro-stratus cloud often indicates an
approaching warm front and an associated area of
low pressure. Rain or snow will not always
follow, but there is a higher probability of it
after a halo is seen, and the brighter the
circle, the greater the probability.
9When the stars begin to huddle, the earth will
soon become a puddle.
- When clouds increase, whole areas of stars may be
hidden by clouds with groups of stars, still in
the clear spots of sky, seem to huddle together.
The clouds are increasing, so the chance of rain
is increasing too.
10Rainbow in the morning gives you fair warning.
- In the morning, the sun is in the east. If there
is a shower, its rainbow is in the west. As the
weather in the mid-latitudes of the northern
hemisphere moves mostly from west to east, the
morning rainbow indicates that rain is moving
from the west toward the observer.
11Animals are sensitive to changes that humans
can't detect.
- Swallows flying low may indicate the air pressure
is dropping. - Dry air and static electricity may increase the
grooming activities of cats. - The calls of some birds, including crows and
geese, have been known to be more frequent with
falling pressure. - Deer and elk sometimes react to wind and air
pressure by coming down from mountains and
seeking shelter. - Many species from rabbits fish may feed more
before a storm so they can seek shelter. - Cicadas can't vibrate their wings when the
humidity is high, so may be silent when rain is
approaching. - Flying insects are more active when air pressure
drops and stay closer to the ground, so they seem
to swarm before a storm.
12The Cricket Thermometer
- The chirping of a cricket has been shown to
provide a close indication of air temperature. By
counting the number of cricket chirps in a
14-second period and adding 40, the total will
equal the air temperature to within one degree
75 of the time.
13People and plants can sometimes detect
atmospheric conditions.
- Some flowers close up as the humidity rises so
rain doesn't wash away their pollen. - The leaves of some trees curl just before a
storm. - The higher the humidity, the better sound
travels. Some English people gauged the chances
of rain by the clarity with which they heard
church bells sound. - A drop in barometric pressure often affects
people with joint diseases, bad teeth, recently
healed broken bones, or corns and bunions,
bringing pain or pressure to those areas of the
body.
14A final note
- Most of these natural forecasting methods are for
the short range. Most long-range proverbs have no
meteorological basis, including the legend of the
ground hog.
The End!