Everyone has seen the chance of rain or snow in a weather forecast, but what exactly does a percent chance of precipitation mean? According to the NWS, the probability of precipitation PoP describes the chance of precipitation occurring at any point in the forecast area, which means the correct way to interpret the forecast is that there's a 40 percent chance rain will occur at any given point in the area.
PoP also incorporates the forecaster's confidence that it will rain or stay dry at a given location, so anything above a 50 percent chance of rain means there is higher confidence that it will rain rather than not. Less than a 50 percent chance of rain means there is higher confidence that it won't rain.
PoP does not depict the duration or intensity of the rain. In other words, a percent chance of rain does not mean it will rain all day, nor will it necessarily downpour the entire time.
Other than precipitation, the three main things that can inhibit visibility are fog, mist and haze. The international definition of fog is a visibility of less than 0. Mist is a visibility of between 0. Aside from the visibility categorization, fog and haze form in a totally different way. Mist and fog are caused by water droplets in the air, and the only difference is visibility, as discussed above. Weather reporters often use the words partly sunny or partly cloudy skies on TV and radio.
While this can get confusing, there is really no difference between partly sunny and partly cloudy as far as the meaning is concerned. There are, however, often different conditions when these phrases are used. Even though they mean the same thing viz. Since you cannot use " partly sunny " to describe weather conditions at night, weather reporters use the phrase " partly cloudy " for describing conditions at night and often use "partly sunny" for describing conditions during the day.
If rain is ending and skies are clearing up, they tend to use the phrase "partly sunny". North northwest wind around 5 mph becoming light and variable after midnight. East northeast wind 3 to 6 mph. East northeast wind 3 to 5 mph. East wind 5 to 8 mph. Calm wind. Saturday Scattered showers after noon. Saturday Night Isolated showers, then scattered showers and thunderstorms after 2am. Calm wind becoming west around 6 mph after midnight.
Sunday Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. East southeast wind around 6 mph becoming calm in the afternoon. New rainfall amounts between a half and three quarters of an inch possible. New rainfall amounts between a quarter and half of an inch possible. Northeast wind around 5 mph becoming calm in the afternoon. East wind 5 to 7 mph becoming light and variable after midnight.
Tuesday Night Mostly clear, with a low around Northeast wind 5 to 7 mph. Sunny, with a high near Northeast wind around 6 mph. East northeast wind 5 to 7 mph.
Saturday Isolated showers after noon. Light south wind. East northeast wind around 6 mph becoming light and variable in the afternoon. Northeast wind 6 to 10 mph. East wind 6 to 11 mph. East northeast wind around 10 mph. East wind 11 to 13 mph.
Wednesday Sunny, with a high near Northeast wind around 8 mph. East northeast wind around 8 mph. Thursday Sunny, with a high near East northeast wind 8 to 11 mph. Search Search. Isolated showers before 1pm. Isolated showers after 1pm. Isolated showers, then scattered showers and thunderstorms after 3am. Scattered showers and thunderstorms. Scattered showers. Scattered showers, mainly after 1am. Isolated showers between 7pm and 3am, then scattered showers and thunderstorms after 3am.
Scattered showers before 7pm. Isolated showers. Showers likely, mainly after noon. Showers likely, mainly after midnight. Showers likely. Scattered showers before noon. Isolated showers after noon. Scattered showers after noon.
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