This chart shows the 14 day weather trend for Frederick (Maryland, United States of America) with daily weather symbols, minimum and maximum temperatures, precipitation amount and probability.
- The deviance is coloured within the temperature graph. The stronger the ups and downs, the more uncertain the forecast will be. The thick line represents the most probable trend.
- Deviance in precipitation is represented as a „T“. There will be notable uncertainties after 6-10 days.
- The forecast is created with „ensemble“ models. Several model runs with varying start parameter are calculated to estimate the predictability of the forecast more precisely.
The 14 day forecast should only be regarded as a trend, not as a precise weather forecast.