The morning news. [volume] (Savannah, Ga.) 1887-1900, 1891-08-02
Auausr.s OUTLOOK At SEA.
The photographic Bureaus Forecast
With a Warning Of cyclone

The photographic Bureaus Forecas'
With Warning Of Nyo-ohe
The photographic bureau makes this fore
cast OF the weather at sea during august
with a warning TO look on; for hurricanes
Feir and exceptionally fine weather may ot
expected generally oyer the atlantic thl'
month The principal danger VIII be from
West Indian hurricanes, and naVlgators
should watch carefully TO avoid them. II
possible. or At least 10 meet them 10 the
tast advantage. August, 1t should be re-
menlbered, Is the prInclpal hurricane
month. There will be considerable log, but
it will be less frequently met with than
during July. ,-,,
c,untered from July 10 October, inclusive,
in the tropics north OF he tenth parallel
the (iulf of Mexico. aud Gulf Stream region.
Earliest indications: Barometer shove the
| normal. with cool, very clear, pleasant
weather: a long, low, ocean swell from the
direction Of the distant storm; light, feath-
cry cirrus clouds. redIatlng from point OH
the horiz IN where a whitish arc indicates
/ the bearing of the center Unmistakable
| signs: Failing barometer; halos about the
sun and moon increasing ocean swell; hot,
mJis. weather, with light variable winds;
deep rel and violet tints at dawn and sun
set a heavy. mountainous cloud bank on
the distant horizon; barometer falling more
rapidly, with passing rain squalls.
One Of the most important Indications
that an approaching storm is Of hurricane
violence is the marked cyclonic circulation
Of the wind, lower and upper clouds, etc.
This may be easily appreciated b. Tenem-
bering that cyclone OF any great intensity
is an ascending spiral whirl, with rotary
motion lin the northern hemlspherel against
the hands Of a watch. The surface wind,
therefore, blows spirally inward not ciroI-
larry, except very near the canter) the next
upper current carrying the low sCud and
and rain clouds, in almost an exact circle
about the center; the next higher current
the high cumulus) in On outward spiral
and SO on, up to the highest cirrus clouds,
which radlate directly outward. The angle
OF divergence between the successive cur
rents is almost exactly two points Of the
compass. Ordinarily, with q surface wind
from n, for instance, the low
clou is come from n, also; on the edge Of a
hurricane. however, they come from n NE.
invariably. In rear Of a hurricane the wind
blows more nearly inward; with a Sc. wind,
for instance, the center Will bear about w,
the low clouds coming from Sc. two
points to the right Of the wind. Great
activity of movement Of the upper clouds,
the hurricane is Of great violence. If the
cirrus plumes that radiate from the distant
storm are FAINT and opalescent in tint, fading
gradually behind slowly thickening haze
or veil, the approaching storm is an old one,
OF large area if Of snowy wilderness, pro-
jected against clear blue sky, it is young
cyclone of small area, but great intensity.
Another very important fact may be
stated thus: When hurricane is moving
along the equatorial limits Of trade-wind
region there is a belt of intensified trades
to windward Of its track; not until the
barometer has fallen about 6-10 of an inch
it is safe to assume that, because the trades
wind increases in force aud remains steady
in direction. you are on the track of the
storm. By attempting too early to cross its
track, running free as soon as the wind be-
gius to freshen, vessel is liable to plunge
directly into the vortex.