– The center of an area of high pressure, usually accompanied by anticyclonic and outward wind flow. Also known as an anticyclone.

– Winds of 40 mph or greater lasting for an hour or more , and/or gusts to 58 mph or greater.

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-The amount of water vapor in the atmosphere. (See relative humidity).

– A severe tropical cyclone with wind speeds in excess of 74 mph (64 knots).

– the composite picture of the interchange of water substance between the earth, the atmosphere and the seas which includes the change of state and vertical and horizontal transport.

– an instrument used to measure humidity.