A series of heavy showers that commenced last month and have continued nearly nonstop past mid-January have wetted drought-stricken West Marin, so much so that the Inverness Public Utility District has called off a mandatory ban on outdoor water systems instituted in September. “We’re looking great,” said Scott McMorrow, the district’s general manager. “Storage levels are looking fine. But we need more rain.” The ban was put in place after Labor Day due to heavy…