LOWER LATITUDES.
NORTHERN HEMISPHERE.
Axis line, wind N.E., barometer falling, first half of storm.
Axis line, wind S.W., barometer rising, last half of storm.
RIGHT-HAND SEMICIRCLE.
Wind E.N.E., E., E.S.E., S.E., barometer falling, storm increasing.
Wind S.S.W., S., S.S.E., S.E., barometer rising, storm passing off.
LEFT-HAND SEMICIRCLE.
Wind N.N.E., N., N.N.W., N.W., barometer falling, storm increasing.
Wind W.S.W., W., W.N.W., N.W., barometer rising, storm passing off.
HIGHER LATITUDES.
NORTHERN HEMISPHERE.[2]
Axis line, wind S.E., barometer falling, first half of storm.
Axis line, wind N.W., barometer rising, last half of storm.