Scientific American Supplement, No. 433, April 19, 1884Various
Science
Scientific American Supplement, No. 433, April 19, 1884
Various
Science -- Periodicals
The prevailing winds on Walden's Ridge are from the southwest; northers
and northeasters are of rare occurrence. One old lady who had resided
there for forty years, in answer to my query upon this subject, said:
"Nine days out of ten, the year round, I can smell Alabama in the air."
This was the usual testimony of the residents. Winds of great velocity
never occur there. In summer there is always an evening breeze,
commencing at 4 to 6 o'clock, and continuing until after sunrise
the next morning. In times of rain, clouds hang low over the ridge
occasionally, but they never have fogs there.
The range of the thermometer is less on the Tablelands than in the
adjacent valleys. I have had access to the carefully taken observations
of the Lookout Mountain Educational Institute, such published accounts
as have been made by Professor Safford, State Geologist, Mr. Killebrew,
the thorough and painstaking private record of Captain John P. Long,
of Chattanooga, and many more of less length of time. From all these I
deduce the fact that the summer days are seven or eight degrees cooler
on the mountains than in the Tennessee Valley at Chattanooga, and five
or six degrees cooler than in the Sequatchee Valley, as far up as Dunlay
and Pikeville. The nights on the table are cooler than in the lower
lands by several more degrees than the days; how much I have thus far
not been able to state. The late fall months, the winter, and early
spring are not so much colder than the valleys as the summer months, the
difference between the average temperature of the mountains and valleys
being at that time four or five degrees less than in the summer. There
is no record of so hot a day ever having occurred on the Cumberladd
Mountains as to cause mercury to run so high as 95° F., or so cold a day
as to cause it to run so low as 10° below zero.
In the average winter the ground rarely freezes to a greater depth than
2 or 3 inches, and it remains frozen but a few days at a time. Ice has
been known to form 8 inches thick, but in ordinary winters, 3 or 4
is the maximum. Snow falls every winter, more or less, and sometimes
remains for a week. Old people have a remembrance of a foot of snow
which lasted for a week.
Public-domain text, read in full here on John Shaqi.
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