ULL

(redirected from Upper-Level Low)
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ULLYou Will
ULLUniversidad de La Laguna (Canary Islands)
ULLUniversity of Louisiana at Lafayette
ULLUltra Low Latency
ULLUnder Low Limit
ULLUrban Living Lab (sustainability experimentation)
ULLUniversité Lumière Lyon (French university)
ULLUnbundled Local Loop
ULLUniversity of London Library (UK)
ULLUpper-Level Low (meteorology)
ULLUltra-Low Latency
ULLUK.local.London
ULLUnbundling of Local Loop
ULLUnit Level Logistics
ULLUniversal Local Loop
ULLUnder Low Limit (measuring tolerances)
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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.