1)cloud droplet that has grown heavy enough to overcome gravity and fall to the ground (caused by the collision and glueing of many smaller cloud droplets swirling around in the air). Most likely seen in Vancouver. Least likely seen in Las Vegas
2)#1 reason outdoor events are canceled, and #1 reason why people would set foot in a museum.
3)the only reason someone would wear a bright yellow jacket.
Joe: I'm going to the Pacific Northwest.
Mary: Have fun in the rain