We (6 adults) were also at the party on 9/14 last year. It started raining buckets of water as we got off of the monorail, and rained for hours. We were completely drenched, even after buying WDW ponchos as soon as we got to the Emporium. The lightning was so frequent and close that I was actually concerned that we were risking our lives to be there slogging through the ankle-deep water in the streets. I asked a CM in the Emporium about the parades, and he said that they were cancelled. My DH and I had paid for the tickets for all of us, and we hated to forfeit all of that money, so we stuck it out. Several of our favorite rides were closed because of the rain and lightning or power blips causing compute problems (BTMRR, POTC, Splash Mt.), and a gazillion people were crowded into the few places that were open for food. We finally managed to find a table at Pecos Bill's, but it was a madhouse. We hit what attractions were operating, and after waiting in a light rain to watch the fireworks, which were amazing, we headed to Toontown along the walk from Tomorrowland. I found out after we got back home, and I was reading on this site other reports of that party date, that the 2nd parade did go on. We were extremely disappointed to have missed it, and if we hadn't been told that it was cancelled we'd have been looking for it. We were offered the return 1 day admission passes to the MK on our way out of the park, but we're AP holders, so they weren't of any value to us. I also found out after reading this site after our return that some people did go and ask for and received refunds, exchanges for another MNSSHP, or MVMCP tickets, even after staying at the party for several hours. I really never expected any remuneration, since Disney can't control the weather. However, given the money amount involved, I would have asked for a refund early in the evening if I'd had any idea that they were offering that. It was definitely not money well spent from our perspective. We're going to the MVMCP on 12/2, and I'm glad that Dec. is a lot less likely to be a washout than Sept.