Nowcasting is a short-range weather forecast for up to six hours, made using frequently updated local measurements. Nowcasting can be made using automated update processes or manual interpretation.


Nowcasts can achieve better forecast precision than model simulations within 1 to 3 (in some cases 6) hours ahead. For periods above 3 hours, high resolution model simulations made 6 to 48 hours in advance are statistically more accurate than nowcasts, because they consider physical processes in the atmosphere. For locations which have more than 1 year of measurement data, MOS can be used to further improve the forecast.


Most of the nowcast information presented by meteoblue is based on the analysis of measurements automatically updated from local stations, radar or satellite.