Aaron’s all over the floodwater beat today, though he forgot to link to the greatest rock song ever about heavy rains. I am sure he regrets the omission. Elsewhere in serious flooding around the District, the SWDC Blog reports that the Maine Avenue Wharf flooded this morning, as did the road to Hains Point. Despite the floodwaters, D.C.’s fishmongers continued to fling fish. I can’t imagine that they’ve been busy today; now that the…