Weather Glossary



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La Nina La Niņa, a phase of ENSO, is a periodic cooling of surface ocean waters in ...
Lapse Rate The rate of change of an atmospheric variable, usually temperature, with height. A steep lapse ...
Latent Heat Heat absorbed or released during a change of phase at constant temperature and pressure. ...
Lenticular Cloud A very smooth, round or oval, lens-shaped cloud that is often seen, singly or stacked ...
Level of Free Convection (LFC) - The level at which a parcel of saturated air becomes warmer than the ...
Lifted Index (LI) Lifted Index. A common measure of atmospheric instability. Its value is obtained by computing the ...
Lifting Condensation Level (LCL) The level at which a parcel of moist air becomes saturated when it is lifted ...
Longwave Trough A trough in the prevailing westerly flow aloft which is characterized by large length and ...
Low Level Jet (LLJ) A region of relatively strong winds in the lower part of the atmosphere. Specifically, it ...
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