Mineral Point tribune. (Mineral Point, Wis.) 1869-1938, 1884-06-05
How Changes are Known from the
Study of the Wea ther Maps.

y
This being an age of scientific in
quiry and investigation, it may not
be uninteresting, or Improbable, TO
the general reader to be made ac-
quainted with the means which mod
ern meteorological science has adopt
ed in seeking a knowledge of the
revelations Of the weather, through
what is called the weather-map.
The weather-map is record OF the
daily atmospheric changes, published
regularly by the weather-bureau at
Washington. BE lore this system
was designed, we had but little idea
of the true causes of storms, and
even at present, no matter how in
teligent, how obseivant, or well-in-
formed a person may be, if he has
not seen this map, and studied its
changes from day to day, he is en-
tirely ignorant of the weather sys-
TEN, in fact he cannot have the re-
hottest conception Of it. For this
reason, if for no other, we have
thought il q matter of some import
ance to those persons unacquainted
with the knowledge and use of the
weather-map, to give them some
brief explanation Of it
The weather-map reveals the daily
changes of the "high" and GLOW"
barometer, 9. what we term Glow"
moves in general lines ircm west
toward east, the wind being always
toward "low;" therefore if 1ow' is
on g "high" line it will be warm; If
moving across the country on this
Glow" line north winds prevail, and
therefore cold. Low is the agent Of
the storms-the center toward which
the clouds are gathered; hence the
movement Of the clouds. So that
the hurricane, the tornado, the cleo
trical wind-storm-call il what you
will-will always be found to be the
track of Glow" line barometer. A
Glow" goes across this country about
once in every four days, and during
the wet and dry months of July,
August and September, it goes 10y
us as frequently as it does in March
and April; but it crosses on such
"high" line that it goes by us time
and time again without precipitation,
with perhaps an occasional thunder
storm, whicn is as we already stated,
the result of Il Glow" moving on "a
"high" line. Now the tracks Of
these CLOVIS" vary with the seasons,
and whatever the changes in tenn
perature are, the record is sure to
be found on the map. For, rely on
on it, this is your true weather
prophet. Let intelligent people pro-
cure and study this map for a few
months, or better still, form n club
and study and discuss the weather
changes in connection with it, for
an entire season, and my word for
It, they will never after commit
themselves to such nonsense as the
so.called "Poor Richards" have
treated the world to in their weather
predictions of the past.
We are continually taken by sur
prise owing to the ever varying
changes of nature, who scarcely
ever repeats herself. Let our teach
ers and instructors then interest
themselves in tits desirable study,
by carefully and diligently studying
the weather-map noting at the same
time, day by day, the changes, for
nothing else can n will so truthfully
reveal the weather to us. To those
who wish to bring their own local
observations into connection with
the more scientific information sup
piled by the weather-maps, there
will come q readiness Of observation,
on wind and cloud, en- weather
signs, relations of pressure and
wind, course Of cyclonic systems,
types of weather, and specimens of
forecast, as will afford entertainment
and instruction to them while motto
ing the local changes Of weather ia
connection with the movements Of
"high" aud Glow" as will facilitate
the study Of all weather phenomena.
Respectfully,
.JOuN CoMAuNS.