Ottumwa tri-weekly courier. [volume] (Ottumwa, Iowa) 1903-1916, 1908-04-14
SAYS
nice WEATHER
TEMPERATURES WITH UPWARD
TENDENCY AND NO VERY
COOL WAVES.
THE CLAYTON METHOD
Does Not Think Long Range Forecast
the Practical Manner of Guagine
Weather Conditions
Slight Storms.

Iowa will have nice month for the
introduction of spring, according to
Prof. Foster, in his forecasts for the
coming week. Temperatures will run
somewhat high and the cooler waves
are not expected to be very cool.
Hence you will feel comfortable
while lowering between winter and
summer. The complete forecast fol-
lows:
Washington, D. c., April IL Last
bulletin gave forecasts of disturb
ance to cross continent 8 to 13, warm
wave s to IL, cool wave II to Is. Next
disturbance will reach Pacific coast
about IA, cross Pacific slope by close
of Is, great central valleys 16 to 18,
eastern states 10. Warm wave will
cross Pacific slope about IA, great
central valleys 16, eastern states 1S.
Cool wave will cross Pacific slope
about II, great central valleys 10 and
eastern states 81.
This will be moderate disturbance
as to wind forces, but immoderate
because of it's high temperatures. It's
cool wave will close long period Of
very warm and dry weather and some
rain may be expected as the cool
also be moderate and frosts will re-
main far away in the northward.
About and Immediately after April
III storm wave of moderate intensi-
ties will be near meridian 80 and will
cause unusually high temperatures
and dry weather. No very severe
storms are expected but the disturb
ances will reach their greatest inten-
stiles about April 16.
| In Maryland, Virginia, District of
Columbia and the southeast quarter of
the United States temperatures are
expected to average much lower in
northern states, great central valleys
and Canada. The coolest part of April
in the southeast quarter of the United
States will center around April 25
My advice to farmers and planters
as to the prices of the cereals have
proven very satisfactory and benefi-
cial.- am expecting good prices to con
tinre, reaching the high point about
last of June.
Long Range System.
Not from the weather bureau, as
promised, but from Prof Clayton OF
Blue Hill observatory That weathe,
observatory is connected with Har
ward college, is of high standing and
Prof. Clayton is the chief meterologist
The weather bureau has published his
system, in it's official organ, at consid
cradle expense for engravings to
illustrate.
Prof. Clayton holds that tempera
ture waves, several days in length
slowly cross the continent from west
to east and that other waves of less
length cross the continent more rapid
~ moving In the same direction. He
does not give these two classes OF
4 temperature waves definite lengths
but we are left to infer that they are
about 8 and days respectively, the
short waves crossing the continent in
about and the long waves in about
days. He does not content that
these waves are regular in their
lengths or velocity but that the short
waves form on the long waves.
I can see no difference between this
theory and that of Prof. Bigelow ex
cept that Bigelow adopted a 27-day
temperature curve having in it's curves
of or Z days and short curves form
ing on these Bigelow also claimed that
his 27-day curve was caused by the
rotation OF the sun on it's axis in 81
days
Bigelow's system and Clayton's
each have merits because they con
tain facts, but whether they arc
practically is another question. The
difficulty is in fitting either system tc
a specified storm wave They are toe
much like normals. While they are
actual averages Of weather conditions
they may never At actual conditions
as Is the case with normals AS l see
1t we must know the cause of each
disturbance and work it out separated,
by the records.