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- Author or Editor: ROBERT E. LYNOTT x
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Abstract
A combination of subsidence, east winds and advection of warm air produced a summer heat wave that raised maximum temperatures 35F in four days. This meteorological event was analyzed at the mesoscale, from data in reports from 15 lower elevation stations and from 90 fire-weather stations in mountainous western Oregon. The temperature analyses show the influences of major physiographic features and a stratified marine airmass. The complex temperature patterns, illustrated in cross sections and terrain surface potential temperature analyses, are related to both pressure and wind-flow patterns.
Abstract
A combination of subsidence, east winds and advection of warm air produced a summer heat wave that raised maximum temperatures 35F in four days. This meteorological event was analyzed at the mesoscale, from data in reports from 15 lower elevation stations and from 90 fire-weather stations in mountainous western Oregon. The temperature analyses show the influences of major physiographic features and a stratified marine airmass. The complex temperature patterns, illustrated in cross sections and terrain surface potential temperature analyses, are related to both pressure and wind-flow patterns.
The application of atmospheric cross sections to a relatively small area is explored as a tool in the study of surface winds in mountainous terrain. Covering a distance of only 50 mi through the Oregon Coast Range, these charts help in tracing airflow over local obstacles and portray changes in stability and stratification. Evidence is presented that vertical patterns of potential temperature must be considered in the detailed analysis of wind structure in mountain areas.
The application of atmospheric cross sections to a relatively small area is explored as a tool in the study of surface winds in mountainous terrain. Covering a distance of only 50 mi through the Oregon Coast Range, these charts help in tracing airflow over local obstacles and portray changes in stability and stratification. Evidence is presented that vertical patterns of potential temperature must be considered in the detailed analysis of wind structure in mountain areas.
Abstract
The most destructive windstorm of recorded history in the Pacific Northwest occurred on October 12, 1962. With a method between that of mesoanalysis and ordinary synoptic analysis, detailed reanalysis was made of the structure of the storm over Oregon and Washington, including isobaric patterns and frontal positions at I-hr. intervals. The significant features of the storm are described. Comparison is made with other notable windstorms in the region. The pressure pattern is used to determine location and magnitude of maximum winds.
Abstract
The most destructive windstorm of recorded history in the Pacific Northwest occurred on October 12, 1962. With a method between that of mesoanalysis and ordinary synoptic analysis, detailed reanalysis was made of the structure of the storm over Oregon and Washington, including isobaric patterns and frontal positions at I-hr. intervals. The significant features of the storm are described. Comparison is made with other notable windstorms in the region. The pressure pattern is used to determine location and magnitude of maximum winds.
