The accuracy and error of forecast also vary for different weather systems in different seasons.The errors of PSR forecast in the next one to six days are within around 10% and those in seven to nine days are within around 20%. Get the forecast for today, tonight & tomorrow's weather for Orlando, FL. Tucson, AZ Today, Tonight & Tomorrows Weather Forecast AccuWeather Current Weather 12:57 AM 64° F RealFeel® 62° Mostly clear More Details Current Air Quality Today 10/5 22 AQI Fair The air. For forecast elements in "9-day Weather Forecast" other than PSR, the average accuracy for the next one to three days, four to seven days, and eight to nine days are about 90%, 85% and 80% respectively. The accuracy of forecast generally decreases while the error generally increases with forecast period.There are 5 categories of probability as follows:įor every 100 forecasts with a "high" probability, there are about 70 times or more with an average accumulated rainfall of 10 mm or above in actual observation.įor every 100 forecasts with a "medium high" probability, there are about 55 to 69 times with an average accumulated rainfall of 10 mm or above in actual observation.įor every 100 forecasts with a "medium" probability, there are about 45 to 54 times with an average accumulated rainfall of 10 mm or above in actual observation.įor every 100 forecasts with a "medium low" probability, there are about 30 to 44 times with an average accumulated rainfall of 10 mm or above in actual observation.įor every 100 forecasts with a "low" probability, there are about less than 30 times with an average accumulated rainfall of 10 mm or above in actual observation. around the mean daily rainfall in rainy season) or more on that day. The PSR forecast on each day indicates the probability of the accumulated rainfall generally over Hong Kong reaching 10 mm (i.e. The total precipitation forecast gives the expected total precipitation for the whole 24-hour day. Please note that especially in inland locations wind gusts can be up to 1,5 to 2,5 times stronger than the 10-minute average wind speed. The Probability of Significant Rain (PSR) forecast provides users with additional reference on rainfall amount and forecast trend for the coming 9 days. The wind forecast shows the strongest expected 10-minute average wind speed of the day.For detailed description of today's weather forecast, please refer to " Local Weather Forecast". "9-day Weather Forecast" provides general indications of the trends in weather for the coming 9 days.This middle 50% range (between 25th and 75th percentiles) is calculated based on the maximum/minimum temperature and relative humidity data within a 5-day period centred on that day in the 30 years from 1991 to 2020. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Panama City Beach area.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |