The Philosophy of the Weather. And a Guide to Its ChangesButler, T. B. (Thomas Belden)
Science
The Philosophy of the Weather. And a Guide to Its Changes
Butler, T. B. (Thomas Belden)
Weather; Weather forecasting
| 29.71| 59 |
| 25 | " | W. N. W. | 5 |b. c. | 29.88| 56 |
| 26 | " | N. | 3 |c. | 30.09| 62 |
| 27 | " | S. E. | 5 |c. q. r. | 30.07| 61 |
| 28 | " | S. W. | 6 |c. q. | 29.88| 66 |
| " |Midnight.| S. S. W. | " |b. c. | 29.76| 65 |
| 29 | Noon. | S. W. | 7 |c. b. |*29.48| 64 |
| 30 | " | W. N. W. | 6 |b. c. q. | 29.83| 55 |
| 31 | " | N. W. | 5 |b. c. | 30.12| 58 |
+-----------------------------------------------------------------+
"_Remark printed in the Register._
"The changes of the wind during the December gales have been nearly
the same in all: _i. e._, commencing with a southerly wind at first,
the wind has veered by the west, toward the north-west, sometimes
ending as far round as N. N. W."
These extracts show the passage of several successive belts, each with the
phenomena in regular order.
The first commences with blue sky and detached clouds, barometer up,
thermometer down to 65 deg., and nearly calm, on the 30th of November.
Dec. 1 (at noon). Wind freshens from S. S. W.; thermometer rises;
barometer still up.
Dec. 2. Barometer has fallen; thermometer up; wind increasing from S. W.,
with gloomy, squally appearance.
Dec. 3. Wind S. S. W.; barometer slowly falling; thermometer slightly.
Dec. 4. Wind fresh; S. W.; condensation and rain has reached them, and it
carries barometer and thermometer down.
Dec. 5. Wind shifting by the west, and squally.
Dec. 6. Winds gets N. W.; blows fresh; barometer at its minimum, probably
at the time of the change of wind, although the register does not show the
precise time.
Dec. 7. Wind N. N. W.; blue sky and detached clouds (N. W. scud), cleared
off; barometer elevated by the N. W. wind, from 29.55 to 29.78. Midnight:
blue sky; detached clouds (N. W. scud probably); barometer up to 29.89;
thermometer fallen, from the cooler character of the northerly wind.
Dec. 8. Wind having lulled as a northerly wind has got round to S. W.
again; thermometer up; barometer falling, and another belt approaching,
and so on.
The first and last part of December show each two regular occurrences of
substantially the same phenomena. The middle is somewhat more irregular.
Public-domain text, read in full here on John Shaqi.
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