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What does FZLVL stand for?

FZLVL stands for Freezing Level (weather forecasts)

This definition appears somewhat frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

Samples in periodicals archive:

Now the upper extent of the cloud is far above the freezing level, the duration of the water droplets at this height and its cold temperatures ensures rapid sublimation to ice.
The forecast still calls for possible snow and rain showers through Tuesday, with overnight temperatures falling below the freezing level.
In such clouds, warm rain processes act below the freezing level (the height at which the temperature is at 0[degrees]C), but ice particles are also initiated above the freezing level that interact with the supercooled liquid cloud droplets in a variety of ways.