Several Rusk County ARC hams, along with a handful of others interested in weather, attended an Advanced Skywarn class Thursday evening, April 4th. Attendees learned about the how cold fronts, warm fronts, highs and low combine to trigger severe weather. Students also learn how to better interpret radar and weather data to determine the most likely place dangerous tornados activity might take place.The class was taught by a National Weather Service representative from Shreveport, Louisiana.