[Met_help] A question

[zhxubinchaoshan]

When I use the Point-Stat Tool to calculate TS and ETS score,I found that the observation of precipitation in GRIB table is Categorical rain(CRAIN).And there is no the PARAMETER that is relate to the 3 hours or 6 hours cumulate precipitation. So if I want to calculate the Ts score of 3 hours or 6 hours cumulate precipitation, which observation variable I need to get from my observation files to match the CRAIN parameter?
Thank you very much!

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