Wednesday: A fresh weather system and associated cold blast will sweep across the Great Lakes and East today and Thursday, the third weather system to track across these regions over the past week. But with the rest of the country failing to participate and mild overall, national nat gas demand has remained below normal throughout. While the East temporarily cools for a couple days, unseasonably strong high pressure will gain ground over the central and southern US with highs of 60s and 70s becoming widespread. This impressive upper ridge is expected to expand into the northern and eastern US this weekend through early next week with many regions becoming 15-30°F warmer than normal. Colder weather systems are then expected to track across the country from west to east February 24-28th, which could be interpreted as trending slightly colder in the overnight data.