thanks for the information. I had a feeling it had something to do with arrivals. I was surprised yesterday that they were on 4R/4L/9 with strong NW winds but 33L was closed from NOTAM.
As for 14, I think it is only for departures from looking at airnav's information. Their page says "APPROACHES TO RWY 14 NOT AUTHORIZED." It also says "RY14/32 UNIDIRECTIONAL; NO LNDGS RY 14; NO TAKEOFFS RY 32"