Soon after reaching perihelion, the comet [Pan-STARRS] may become visible to the naked eye for Northern Hemisphere sky-watchers low in the western horizon just after sunset on March 7, weather permitting, said Raminder Singh Samra, a resident astronomer at the H.R. MacMillan Space Centre in Vancouver, Canada."When viewers look for Pan-STARRS, they should have a clear unobstructed view of the western horizon, as the comet is visible for only a few minutes each night in mid-March," Samra said."For best results a clear view of the horizon and dark skies are recommended, and having binoculars will greatly enhance the view for observers in large, bright cities." (Also see "New Comet Discovered—May Become 'One of Brightest in History.'")About a half-hour to an hour after sunset on the 12th and 13th will be the easiest time to spot the comet, thanks to a young crescent moon.
But back to those "Laws" it is going to be cloudy and rainy/snowy here for the next few days. There is no astronomical phenomena that will not be obscured by weather in my area.