Timely and Reliable Philippine Weather Forecast

Philippine Standard Time

Glossary

There are currently 5 names in this directory
ULLOA'S RING
A glory. A halo (also called Bouguer's halo), surrounding a point in the sky diametrically opposite the sun; sometimes described as a "white rainbow".

ULTRAVIOLET RADIATION
Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays.

UNSTABLE AIR
Air with temperature differences that encourage the formation of convection currents that can produce clouds and precipitation.

UPDRIFT
An upward current of air, usually within a thundercloud.

UPWELLING
The rising of water toward the surface from subsurface layers of a body of water.


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