Precipitation type forecasting algorithm

FMI’s algorithm proceses  NWP models (ECMWF, HIRLAM and GFS) and the best guess of the meteorologists to forecast the type of precipitation (the identified classes are: rain, drizzle, freezing rain, freezing drizzle, sleet and snow).

Description & Technical Information

Description

FMI’s algorithm proceses  NWP models (ECMWF, HIRLAM and GFS) and the best guess of the meteorologists to forecast the type of precipitation (the identified classes are: rain, drizzle, freezing rain, freezing drizzle, sleet and snow).

The probabilistic version of the algorithm utilizes the forecasts of a poor man ensemble prediction system (PEPS) including previous model runs.

Technical information

Hazard ,
References Jaakko Nuottakari, K. Ylinen, J. Kauhanen, S. Neiglick, J. Ylläsjärvi, and J. Kilpinen https://ams.confex.com/ams/97Annual/webprogram/Paper298049.html
Developer Finnish Meteorological Institute (FMI)

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