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In the West, heavy rain and snow chances increase on Tuesday as "another atmospheric river event arrives" across parts of central California, the National Weather Service said in a Sunday forecast ...
The stormy pattern will continue this weekend, with milder air expected to move in and cause snow levels to rise. The combination of rain and snowmelt will further increase the risk of flooding at ...
The lingering effects of a high pressure system will conspire with an approaching storm from the Midwest to make a mess across much of the East.
The vertical extent of the dust or sand that is raised is largely determined by the stability of the atmosphere above the ground as well as by the weight of the particulates. In some cases, dust and sand may be confined to a relatively-shallow layer by a low-lying temperature inversion. In other instances, dust (but not sand) may be lifted as ...
The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
Incidences of dense fog in Los Angeles have been decreasing over time; researchers surmise the change may be a consequence of both the urban heat Island effect and decreased air pollution. [ 53 ] In the Central Valley during the winter months and in times of clear skies and light winds, the moisture from the Pacific can produce the tule fog ...
Tule fog forms from late fall through early spring (California's winter season) after the first significant rainfall. The official time frame for tule fog to form is from November 1 to March 31. This phenomenon is named after the tule grass wetlands (tulares) of the Central Valley. As of 2005, tule fog was the leading cause of weather-related ...
A bomb cyclone pounding Northern California and the Pacific Northwest with heavy rain and strong winds was already blamed for two deaths and will likely fuel flooding, rock slides, debris flows ...