Here’s one of the good ones I was looking for early. NWS and NOAA are just a maze sometimes, when it comes to finding stuff.
National Weather Service Precipitation Map
http://www.srh.noaa.gov/ridge2/RFC_Precip/
You’ll have to pan and zoom and then take a screen shot to get something post-able, but it’s nice map data. This map is radar-derived estimates with some correction for radar-vs-measured data at weather stations.
That is a good one. Thanks.