. N. E. storms, whether they set in from that quarter in the
commencement, or veer to it afterward, when they do "change" round, more
frequently veer by the S. to the S. W. in clearing off, than back through
the N. into the N. W. The former, in accordance with his theory, they can
not do, as the reader can see by passing the left side of the card over
his place of residence on the map from S. W. to N. E.
3d. N. E. storms often pass off without hauling by S. or backing by N.,
and with or without a clearing off shower, the _wind shifting and coming
out suddenly at S. W._ This they could not do in accordance with his
theory, as slipping the card will show.
4th. From June to February it is _exceedingly uncommon_ for a N. E. storm
to back into the N. W. They do so more frequently from February to May,
especially about the time of the vernal equinox and after; and then,
because the focus of precipitation and storm intensity of the extra
tropical zone of rains is S. of 42 deg. east of the Alleghanies. His theory
requires them to back by N. into N. W. _in all cases, when they set in N.
E._
5th. When they do back from the N. E. into the N. W., it rarely indeed
continues to storm after the wind leaves the point of N. E. by N., and
generally, if it does continue stormy, _the wind is light_, and not a
gale, how violent soever the gale from the eastward may have been.
Usually, by the time the wind gets N. W., it has cleared off. This, Mr.
Redfield, as we shall see, evades by embracing the N. W. fair wind as a
part of the same gale. According to my observation, therefore, a _very
large proportion_ of the _N. E. storms_, and they are a majority of the
most violent ones of our climate east of the Alleghanies, do not
_commence, continue_, or _veer_ in accordance with his theory, but the
_reverse_; and so long as this is so, I can not receive his theory as
true.
6th. S. E. storms do not always, or indeed often, conform to the
requirements of his card. When they set in violently at S. E., and
continue so for hours without veering, the axis of the storm should be
over us, and the wind should change _suddenly_ to N. W. This did not occur
in the storm of Sept. 3, 1821, nor does it often, if ever, occur in the
summer or early gales of the autumnal months. In the later storms of
autumn, and as often in those which are very gentle as any, and in the
winter months when S. E. gales are rare, it does sometimes so change after
the storm clo
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