12/1 – Rob’s “Arctic Air Mass” Mid-Morning Forecast
An upper level disturbance bringing snow showers to the Ohio and Tennessee Valleys will continue to sit and then gradually move slowly east…lifting and moving into the Mid-Atlantic states by tonight and into Wednesday. This will allow for a moderating trend of the cold air mass that is currently in place. Surface high will briefly build in overhead today and then slide off to our east by tonight. A brief warming trend on Wednesday as a return flow to follow suit.
Another amplified system will dig into the Texas panhandle by Wednesday night. An associated cold front will bring showers and possibly an isolated thunderstorm Wednesday night as the boundary approaches from the west. Unsettled weather will continue into Thursday as the frontal boundary creeps very slowly eastward. Upper low will eventually drift slowly east-southeast by Friday bringing cooler temperatures as it will eventually pull the front through the area.
A drying trend with max Temps only rebounding into the 50s on Friday as low clouds will potentially linger. This will bring with it cold air advection once again on Friday. However, values will be much higher than the current cold snap.