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At https://www.aviationweather.gov on the Forecasts puldown, then the Aviation Forecasts selection, the chart opens and often shows what looks like a letter R with a tail in the lower right, in different colors. The legend does show the symbol. What does it indicate?

weather symbol


marked as duplicate by fooot, vasin1987, CGCampbell, jwzumwalt, Peter Kämpf Jul 9 '18 at 18:40

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The Info button (top right) takes you to an explanation site, which in turn links you to


Which explains the Symbol (under the section Fog or special weather) as Thunderstorm

  • $\begingroup$ Excellent! I guess I need to poke around there more, I hadn't even tried the Info pages at all. Thanks. $\endgroup$ – CrossRoads Jul 9 '18 at 15:09

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