ForecastWatch.com August Customer Newsletter
Welcome to the August Newsletter of ForecastWatch.com. You are receiving this email as a subscriber to a ForecastWatch.com product or by signing up for ForecastWatch news. Please see the bottom of this email for instructions on how to unsubscribe from this newsletter.
Beginning September 1, ForecastWatch.com will begin collecting weather forecasts from the National Digital Forecast Database. This is the highest quality forecast the National Weather Service provides, and will allow for better comparisons (currently forecasts from weather.gov are used for comparison, and they continue to have issues, especially with the western region forecasts) with the NWS. It also provides forecasts out to seven days compared with weather.gov's 3-4 day out forecasts. The NDFD is the forecast system used by Weather Underground and WeatherBug as well.
July accuracy data has been audited and loaded for viewing. High temperatures on average were over-forecast, with the exception of a small band running from New Mexico to Wyoming. High temperature forecast bias remained positive and shot from 0.07 degrees to 0.43 degrees. Low temperatures were under-forecast on average east of the Mississippi and over-forecast west. Low temperature forecast bias went from -0.48 to -0.32 degrees.
75%% of one-day-out high temperature forecasts and 74%% of one-day-out low temperature forecasts were within three degrees. Overall one- to five-day out high temperature RMS error dropped from 4.58 degrees to 4.12 degrees. Low temperature RMS error dropped from 4.59 to 4.12 degrees. To view the July data, as well as year-to-date and historical numbers, log on to http://www.forecastwatch.com
As always, let us know what you think at ideas@forecastwatch.com . We welcome your ideas and suggestions to make our services better and more useful.
