pop: Probability of precipitation (pop) data.
In verification: Weather Forecast Verification Utilities

These datasets are used to illustrate several functions including value and roc.plot.

These forecasts are summaries of 24-hour probability of precipitation forecasts that were made by the Finnish Meteorological Institute (FMI) during 2003, for daily precipitation in the city of Tampere in south central Finland. Light precipitation is considered rainfall greater than .2 mm. Rainfall accumulation is considered values greater than 4.4 mm. Rows of data either missing forecasts or observations have been removed.

This data has been kindly provided by Dr. Pertti Nurmi of the Finnish Meteorological Institute. http://www.cawcr.gov.au/projects/verification/POP3/POP3.html