OUTFLOW
– Air that flows outward from a thunderstorm.
OVERCAST
– Sky condition when greater than 9/10 of the sky is covered
OVERSHOOTING TOP
– A ‘bubble’ of cloud sticking up above the anvil of a thunderstorm, due to a vigorous updraft within the storm.
OZONE
– A form of oxygen containing 3 molecules, usually found in the stratosphere, and responsible for filtering out much of the sun’s ultraviolet radiation.
P
PACIFIC HIGH
– A semipermanent anticyclone located in the Eastern North Pacific.
PACKAGE
– A compilation of analysis and forecast charts and their interpretation.
PARTLY CLOUDY
(