@idefix37 temperatures. temperature patterns. jet stream. jet stream follow ups / outs / stuff whatever turns up. what I mean is they have those lines with contour numbers on them of Goddamnit and if it's below a certain number it snows especially on high ground. This indicates some type of warm front may have suddenly turned up and caused the frozen rain to snow. for eg. so that's it - weather patterns show where the fronts might be and where they are colliding and scrapping/fighting with each other, so stuff like that. That was it - clouds. Check out the cloud cover because they are sometimes at the front of the fronts as it were and tailing off at the tails. Dunno for sure.