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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Weather can be active anytime when you make your visit to Canada. With each season offering its own unique conditions to observe. Booking coach or business class flights it is always a great time to visit Canada and its vast display of weather.