Sorry my bad —I meant to type 10 degrees not 18 — you are correct about that calculation, but at 10 degrees there is no capability to indicate a below zero reading. 10 degrees @ 25MPH calculates to minus 11F
Look at the new capture at the cursur location ---- Wind chill is negative 2.8 degrees but the graph is flat lined at Zero — also no scale left or right
Again Brian — this is not worth spending time on but just demonstrating my position on the matter.
Screen Shot.doc (192 KB)