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ULLYou Will
ULLUniversidad de La Laguna (Canary Islands)
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ULLUnbundled Local Loop
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ULLUpper-Level Low (meteorology)
ULLUltra-Low Latency
ULLUnbundling of Local Loop
ULLUnit Level Logistics
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References in periodicals archive ?
Although many factors are considered by forecasters, including wind, stability, orographic lifting, and dynamic conditions related to the upper-level low, flash flood warnings would likely be issued sooner with very high GPS-PW values versus events with "typical" or marginal values of GPS-PW.
Even worse, this area is often near the upper-level low trailing the surface system, which means unstable air and showery weather.
In meteorologist terms, the quick weather turnabout is the result of a cold front associated with an upper-level low pressure system in the southeast Gulf of Alaska.
In a report issued on Sunday, the Qatar Met department said numerical weather prediction charts continued to indicate that a "state of atmospheric instability" was expected to affect the country due to the "extension of an upper-level low pressure system" from Tuesday until the end of this month.
Upper-level lows bring showery precipitation during the day that dissipates at night.