arial,helveticaOn the temperature map it looks like there ins a warm front coming in from the southeast, but it stops when it hits the Appalachian Mountains. To get past the mountain range, the air must rise, and as it rises, it cools. By the time the front reaches the other side of the mountain range, it isn't warm anymore. Robins and tulips are out along the east coast because that''s where the warm temperatures are. 6c6c,6969,7373