Originally Posted by Sink r8

I tend to agree, because we think in terms of cell movement. You have the big picture... you use your radar to see where the sucker actually is when you get there. But if you think in terms of cells developing, maybe you have two areas to choose from, but one's building up drastically, one not so much, the old picture might lead you towards the wrong choice. A 30-minute delay is a fairly long time.