I've was on an Vt. (8 trap) lake after lakers/salmon when a squall came though.It was so bad we couldn't see more than one tip up. We had only had 3 flags all AM and when the snow let up we had 12 out of 16 flags up! The two of us took home two nice salmon and two nice lakers,all the other fish were released for another day. IMHO a RAPID barometer drop gets fish to feed for a short time.