This looks like a known issue with CWOP stations and NOAA.
Per Aeris (our weather provider):
"The station is sending the data as Precip since local midnight. Unfortunately, this is the value that NOAA is not redistributing for "APRSWXNET/CWOP" stations. We have requests in to add this, but as of the end of June, we were told there was no immediate option for them to redistribute these values."
It looks like the station in question is only sending precipitation since local midnight which NOAA is not correctly redistributing.
You can choose another station or ask the station owner to send different data.
This thread had a user with similar issues.