Forecast of the Day • A National Weather Forecasting Contest

This week's weather is fairly dramatic: very cold air in the northern Rockies, very warm air in the East, and very heavy rainfall along a line from Texas to the Great Lakes. For Tuesday, let's predict the high temperature for Charleston, West Virginia. The GFS MOS has been predicting difficult-to-believe highs in the upper 80's, almost 40 F above average, and comparable to the national highs in Florida. Is that possible? The NAM MOS and NWS forecasts are a little lower, around 80 F. What combination of things could produce a high temperature in West Virginia near 90 F in February?