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The week starts off with mild weather but the chances for rain and mountain snow increase as the weekend approaches, according to the National Weather Service. Rain enters California forecast ...
Extreme southern California (including San Diego metro area) is forecast to pick up 1 to 3 inches of rain, with locally higher amounts up to 5 inches.
The second storm hits Southern California on Monday, with heavy rain likely from San Luis Obispo into Los Angeles. ... In addition to the heavy rain, it is forecast to snow 1-2 feet in the Sierras ...
The Weather Channel's definition may include precipitation amounts below 0.01 inch (0.254 mm) and includes the chance of precipitation 3 hours before or after the forecast period. This latter change was described as less objective and more consumer-centric. [5] The Weather Channel has an observed wet bias – the probability of precipitation is ...
Within the United States, the Hydrometeorological Prediction Center, [20] River Forecast Centers, [1] and local forecast offices within the National Weather Service create precipitation forecasts for up to five days in the future, [21] forecasting amounts equal to or greater than 0.01 inches (0.25 mm). Starting in the mid-to-late 1990s, QPFs ...
A "persistence" forecast can still rival even those of the most sophisticated models. An example is: "What is the weather going to be like today? Same as it was yesterday." This could be considered analogous to a "control" experiment. Another example would be a climatological forecast: "What is the weather going to be like today? The same as it ...
Saturday’s forecast shows an 80% chance of precipitation with gusts ranging from 11 to 32 mph. Thunderstorms are possible, and about a quarter of an inch of rain or more is expected ...
If the observed or forecast rainfall volume is greater than the characteristic rainfall volume then flooding in the catchment is likely. The characteristic rainfall volume for a particular catchment and duration, called "flash flood guidance", depends on the catchment and drainage network characteristics, and the soil water deficit determined ...
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