If weathercasters were ever accurate, this award would probably go to the one who was most often on the money about rain showers and cold fronts. But because forecasts are all the same and as reliable as a Bush administration intelligence report, the winner here must have something beyond the latest bulletin from the weather bureau. No weathercaster is as easy on the eyes as WSVN-TV's Jackie Johnson (Channel 7). Attractive, shapely, a self-described "outdoor girl" from Michigan, Double J has made the weather segment a must-see, especially among young males who judge women by superficialities like attractiveness, figure, and affinity for the outdoors. Her station knows this way too well: Sex appeal is what makes Johnson and WSVN a perfect match. She even has a special feature, "Living It Up," wherein assignments range from learning to handle the throttle on a speedboat to playing beach volleyball to "surfing" on South Beach. Segments like the last thrust a scantily clad, dripping wet Johnson straight into your throbbing living room. And you thought meteorologists were boring.