Just trying to expand my understanding of weather maps. I know the markings for warm fronts, cold fronts and the indications showing which way they are headed. Reading NWS discussions there are mentions of troughs and ridges but I not sure how they are indicated on maps. Wundermap sometimes shows dotted lines. The WU map on my android sometimes shows brown solid or dotted lines and today I am seeing a very fancy version, see attached. Can anybody help?
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