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The Elsinore Trough is a graben rift valley in Riverside County, southern California. It is created by the Elsinore Fault Zone . It is located between the Santa Ana Mountains to the west, and the Temescal Mountains of the Perris Block and the Temecula Basin to the east.
A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area. Since low pressure implies a low height on a pressure surface, troughs and ridges refer to features in an identical sense as those on a topographic map. Troughs may be at the surface, or aloft, at ...
Elsinore Valley is a graben rift valley in western Riverside County, California, a part of the Elsinore Trough. The Elsinore Valley is a graben between the Santa Ana Block to the southwest and the Perris Block on the northeast. It is a complex graben, divided lengthwise into several smaller sections by transverse faults.
A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.
Wolf Valley is the southernmost of the graben valleys making up the Elsinore Trough, created by the Elsinore Fault Zone. It lies between the Wildomar Fault on the east, at the foot of the Temecula Basin and the Willard Fault on the west, at the foot of the Santa Ana Mountains. Wolf Valley lies south of Temecula Creek.
At 236 ft (72 m) below sea level, the Salton Sink is the topographic low area within the Salton Trough and is the second-lowest point, after Death Valley, on the North American continent. At 210 ft (64 m) below sea level, the Salton Sea , which fills the lowest part of the Salton Sink, is the lowest permanent lake in North America.
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A low-pressure area is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the troposphere. [1] The formation process of a low-pressure area is known as cyclogenesis. [2]