What is the best interactive real-time weather map online?

How could you use data from ground weather stations to plot highs, lows, and front lines on a weather map?

• This is a science question from the worksheet "Predicting Weather" for 6th graders, it is question number 16. The question is "Explain how you could use data from ground weather stations to plot highs, lows, and front lines on a weather map."

• Answer:

  Well you could label various weather stations on the map and plot the highs and lows where the station is located. To indicate a front, if a station was having a thunderstorm and other weather stations that the thunderstorm was moving away from have colder air than weather stations ahead of the thunderstorms would indicate a cold front. It's the opposite for a warm front except they just bring light rain not thunderstorms.