High Resolution Precipitation Forecasts Based on NCEP GEFS Reforecasts and CCPA

This page presents high resolution (1/8 degree) experimental precipitation forecasts, based on the Reforecast V2 and Climatology-Calibrated Precipitation Analysis (CCPA, 2002-2013) datasets. An overview of the technique used, including an evaluation of the forecast skill of this method, is described in Hamill (2014).

These forecasts will usually (but not always) be updated by 16 UTC each day. They likely will not be available as consistently as operational products from the National Weather Service. Also please note that this is an experimental forecast product, and is not an official forecast of NOAA or its National Weather Service. Precipitation units are mm (25.4 mm = 1 inch).

We welcome feedback on this product. Email comments to: psl.reforecast2@noaa.gov .

For an improved parametric method of producing high resolution precipitation forecasts: click here.

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Analysis Date (format: yyyymmdd): Latest: Feb 25 2013
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This is a Research and Development Application