A Procedure for Forecasting Precipitation Type Using NGM Low Level Temperatures and LFM MOS Frozen Precipitation Probabilities

In Eastern Region Technical Attachment No. 86-19(A) a procedure was shown for forecasting precipitation type using nested grid model (NGM) low level temperature forecasts. A technique is presented for combining the results of that procedure with model output statistics (MOS) probability of frozen (POF) precipitation values from the limited fine-mesh model (LFM) to determine precipitation type.