Next 15 days look dry, I think you'll see vast improvement in clarity over the next several days. Is your water settling on it's own without Alum? If so, I think you're ok - can't imagine the precipitation would have caused an ionic imbalance on it's own suddenly - but I'm not a water chemistry expert.
Are your fish still feeding? If so, that relieves some of my worries about no angling action the past two weeks per Rex.
Do you have any photos of sores on the fish? Your BCP should have spawned 6 weeks ago - if lesions are fresh and not nearly healed they might be indicative of something else afoot for the BCP at least.