16th Conference on Severe Local Storms, Alberta, Canada, American Meteorological Society, 554-559. Augustine, 1990: A decade of tornado occurrence associated with a mesoscale flow feature: The Denver Cyclone. : Cite journal requires |journal= ( help) Longmont, CO: NWS Denver Center Weather Service Unit. "Denver Air Route Traffic Control Thunderstorm Patterns" (PDF). National Center for Atmospheric Research. "Monitoring and Tracking Severe Weather in the Vicinity of Denver Airports" (PDF). Fourth Conference on Metroscale Processes, Boulder, American Meteorological Society Augustine, 1990: An examination of the mean flow and thermodynamic characteristics of a mesoscale flow feature: The Denver Cyclone. Email correspondence quoted by Sam Barricklow, ![]() "Colorado's Front Range: Understanding Tornadogenesis In relation to the Denver Cyclone". Louis, MO: American Meteorological Society. "The Denver Cyclone and Tornadoes 25 Years later: The Continued Challenge of Predicting Non-supercell Tornadoes". Using climatic data from the 1980s, one researcher suggested that the presence of a strong June DCVZ is associated with a 70% chance of zone-area tornado formation. Many studies document the role of the DCVZ in tornado outbreaks across the Denver area. Various measures were adopted to identify these hazards and take action to mitigate when present. All of these are recognized as fairly common and as hazards for Denver International Airport (DIA), both the former location at Stapleton and the newer location farther east. Dry microbursts and landspouts may occur in the early stages of development whereas wet microbursts and occasionally mesocyclonic tornadoes during later stages. Once initiated these thunderclouds may form very rapidly. thunderclouds) may break into cumulonimbus and cumulus congestus clouds. When a DCVZ and especially Denver Cyclone develop, an otherwise capped atmosphere devoid of deep, moist atmospheric convection (e.g. Role in atmospheric convection and tornado formation ![]() ĭCVZ conditions are often associated with the Denver Cyclone effect, which is characterized by the formation of a large gyre near the city center. A study conducted between 19 demonstrated that the DCVZ formed on one-third of all days during the convective season (May through August). ![]() If the moist air lifts over the ridge and meets northwesterly winds originating in the Rocky Mountain foothills, winds may converge to create enhanced cyclonic vorticity. 2 Role in atmospheric convection and tornado formationĭCVZ conditions form when a low-level moist, southeasterly flowing air mass meets the Palmer Divide, a ridge that extends east of the Colorado Front Range.
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