Nowcasting (meteorology)
Nowcasting is weather forecasting on a very short term Mesoscale meteorology, mesoscale period of up to 2 hours according to the World Meteorological Organization and up to six hours according to other authors in the field. This forecast is an extrapolation in time of known weather parameters, including those obtained by means of remote sensing, using techniques that take into account a possible evolution of the air mass. This type of forecast therefore includes details that cannot be solved by numerical weather prediction (NWP) models running over longer forecast periods. Principle Nowcasting in meteorology uses surface weather station data, wind profiler data, and any other weather data available to initialize the current weather situation and forecast by extrapolation for a period of 0 to 6 hours. In this time range it is possible to forecast small features such as individual storms with reasonable accuracy. Weather radar echoes and satellite data, giving cloud coverage, are p ...
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Nowcasting or Nowcast may refer to: * Nowcasting (economics), the estimate of the current state of the economy * Nowcasting (meteorology), the weather forecasting for a short period of up to a few hours ** 3D nowcasting, the prediction of precipitation several minutes before it occurs *NowCast (air quality index), the real time estimate of the air quality as well as the few hours prediction of ozone concentration * Nowcasting (seismology), the estimate of the current state of a seismological system in earthquake forecasting {{disambiguation ...
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