Note 1 — Chapter XVI
Reading edition
Barometric pressure in Philippines is measured in millimeters. In typhoons where fifth signal is flown, about 742 is lowest pressure recorded. In great storm of 1908, 739.8 was lowest. Generally the falling of the barometer is gradual for several days during the continuance of the storm. When it falls suddenly, as here indicated, before a storm, it means that a storm of short duration but of terrific violence is coming.