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John O. Roads
,
T. Norman Maisal
, and
Jordan Alpert

Abstract

Precipitation forecasts made by the National Meteorological Center's medium-range forecast (MRF) model are evaluated for the period, 1 March 1987 to 31 March 1989. As shown by Roads and Maisel, the MRF model wet bias was substantially alleviated during this period. As is shown here, the MRF model forecast skill in predicting individual wet and dry events has also increased. We show that there is substantial skill in the model forecasts of precipitation occurrences beyond 2.5 days. These MRF model forecasts have not yet been fully exploited by the forecasting community, in part, because they have not been readily available.

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