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

Reading a weather map..?

• i got a test tomrrow on weather maps. basically ill be given a map and have a set of questions to answer, i was away when he (teacher) explained all the details so yeah. i need to know: -why the map is a summer or winter map, 3 reasons -need to know about the air mass -atmospheric pressure -wind direction -which location is most likely to be raining -where is the wind strongest -where is the temperature warmer so, i need someone to explain what indicates these things, like L and H and cold fronts and stuff. thanks a lot. http://aawu.arh.noaa.gov/fcstgraphics/sfc.gif heres a map so you can explain it better

• Answer:

  1. Usually a Summer map has a more High Pressure systems than low, there are no coldfronts and hectopascals are high. Winter is vice-versa. 2. Air mass, basically the type of air that is affecting the area. I'm not sure about this one. 3. Atmospheric pressure is the numbers on the isobars. 4. Winds in High Pressure Systems travel anti-clockwise (West) and Low Pressure Systems travel in a clockwise direction (East). 5. It's most likely raining if there is a coldfront coming in, or the winds are coming from the sea. 6. The wind is strongest where the isobars are really close together. 7. High Pressure systems have warmer temperature than Low Pressure systems. By the way, isobars are those curvy lines around the H and L's.