Weather Glossary



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Geopotential Height The height above sea level of a pressure level. For example, if a station reports ...
GFS Global Forecast System - One of the operational forecast models run at NCEP. The GFS ...
Gradient A rate of change with respect to distance of a variable quantity, as temperature or ...
Graupel Same as snow pellets or small hail. ...
Gravity Wave A wave created by the action of gravity on density variations in the stratified atmosphere. ...
GRIB (Gridded Binary Format) - A format used for meteorological data. Typically used in the past ...
Ground Clutter A pattern of radar echoes from fixed ground targets (buildings, hills, etc.) near the radar. ...
Gust Front The leading edge of gusty surface winds from thunderstorm downdrafts; sometimes associated with a shelf ...
Gustnado A gustnado is a small, whirlwind which forms as an eddy in thunderstorm outflows. They ...
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