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RISThe Key Role of Diabatic Outflow in Amplifying the Midlatitude Flow: A Representative Case Study of Weather Systems Surrounding Western North Pacific Extratropical Transition
Publisher: American Meteorological Society
Abstract: ecurving tropical cyclones (TCs) undergoing extratropical transition (ET) may substantially modify the large-scale midlatitude flow pattern. This study highlights the role of diabatic outflow in midlatitude flow amplification ...
Relationships between Large-Scale Regime Transitions and Major Cool-Season Precipitation Events in the Northeastern United States
Publisher: American Meteorological Society
Abstract: This observational study investigates statistical and synoptic?dynamic relationships between regime transitions, defined as a North Atlantic Oscillation (NAO) or Pacific?North American pattern (PNA) index change from at ...
A Phase Locking Perspective on Rossby Wave Amplification and Atmospheric Blocking Downstream of Recurving Western North Pacific Tropical Cyclones
Publisher: American Meteorological Society
Abstract: The extratropical transition (ET) of tropical cyclones (TCs) can significantly influence the evolution of the midlatitude flow. However, the interaction between recurving TCs and upstream upper-level troughs features a ...
An Analysis of Multiple Predecessor Rain Events ahead of Tropical Cyclones Ike and Lowell: 10–15 September 2008
Publisher: American Meteorological Society
Abstract: n analysis of three predecessor rain events (PREs) that occurred ahead of North Atlantic tropical cyclone (TC) Ike and east Pacific TC Lowell during 10?15 September 2008 is presented. The three PREs produced all-time daily ...
A Composite Perspective of the Extratropical Flow Response to Recurving Western North Pacific Tropical Cyclones
Publisher: American Meteorological Society
Abstract: his study investigates the composite extratropical flow response to recurving western North Pacific tropical cyclones (WNP TCs), and the dependence of this response on the strength of the TC?extratropical flow interaction ...
Influence of Large-Scale Flow Regimes on Cool-Season Precipitation in the Northeastern United States
Publisher: American Meteorological Society
Abstract: The influence of large-scale flow regimes on cool-season (November?April) northeastern U.S. (Northeast) precipitation is investigated for the period 1948?2003 from statistical and synoptic perspectives. These perspectives ...
A Comparison of South American and African Preferential Pathways for Extreme Cold Events
Publisher: American Meteorological Society
Abstract: n the Southern Hemisphere, a relatively well-known preferential pathway along which cold air surges equatorward is situated to the east of the Andes Mountains. In this study, a second preferred pathway is identified to the ...
Interactions of North Pacific Tropical, Midlatitude, and Polar Disturbances Resulting in Linked Extreme Weather Events over North America in October 2007
Publisher: American Meteorological Society
Abstract: his study uses observations and model reanalyses to examine the multiscale processes associated with four high-impact extreme weather events (EWEs) over North America during late October 2007. The EWEs consisted of wind-driven ...
A Climatological Analysis of the Extratropical Flow Response to Recurving Western North Pacific Tropical Cyclones
Publisher: American Meteorological Society
Abstract: lthough prior studies have established that the extratropical flow pattern often amplifies downstream of recurving tropical cyclones (TCs), the extratropical flow response to recurving TCs has not to the authors' knowledge ...
The Pre-Depression Investigation of Cloud-Systems in the Tropics (PREDICT) Field Campaign: Perspectives of Early Career Scientists
Publisher: American Meteorological Society
Abstract: epression Investigation of Cloud-systems in the Tropics (PREDICT) field experiment successfully gathered data from four developing and four decaying/nondeveloping tropical disturbances over the tropical North Atlantic basin ...