[QUOTE=calmwinds;2744971]Nil is a Pirep. 3/3/3 is TALPA. A Pirep is required to take precedence over TALPA. TALPA can never be better than a PIREP.
GOM says braking reports if NIL suspend airline operations at that airport .. although, I think it means that specific runway, not the entire airport. GOM also refers to the specific AFM.
CRJ 900 AFM addresses braking reports for both departures and arrivals. For landings, a diversion "should be considered" if the braking action is reported poor.
It was reported worse than poor.