Timely and Reliable Philippine Weather Forecast

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Glossary

There are currently 6 names in this directory
GALE
An unusually strong wind, with velocities ranging from 28 to 47 knots (32 to 63 mph or 51 to 101 kph). In practice a wind of or exceeding force 8 on the Beaufort scale is counted a gale.

GLAZE
Term applied to a smooth coating of ice on terrestrial objects due to the freezing of rain. In other countries such deposit is called glazed frost . A deposit of glaze on an extensive scale constitutes an ice storm.

GRADIENT
Change of value of a certain meteorological element per unit distance. The gradients commonly discussed in meteorology are the horizontal gradient of pressure, the vertical gradient of temperature, and the vertical gradient of electrical potential. Meteorologists now prefer the term lapse-rate to vertical gradient.

GRAUPEL
Precipitation formed when water droplets freeze in layers around a falling ice crystal. Also called soft hail.

GREENHOUSE EFFECT
The heating effect produced when the atmosphere absorbs and reemits infrared radiation. The shorter wavelength of insolation are transmitted freely through the atmosphere to be absorbed at the earth's surface, then earth reemits this as long-wave terrestrial radiation back to space.

GUST
A sudden brief increase in the force of the wind. It is of a more transient character than a squall and is followed by a lull or slackening in the wind speed. Most winds near the earth's surface display alternate gusts and lulls.


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