The persistent pattern of cool north and warm south remains in place as a huge trough of cool air remains more-or-less fixed from the Pacific NW across the northern tier of states out to New England. It is warm and will remain so across the South from SoCal through Arizona, New Mexico, Texas, the Gulf coast states, Georgia and Florida. In between, a very strong west-to east moving jet stream (equally locked in-place) will intiate a frequent series of low pressure systems, starting initially in Coloradao, that will move on an ENE track and exit the Altantic seaboard from Virginia to NY. In this middle region, temperatures will vary widely from one day to the next but will add up to average. Tornadoes and very strong and gusty wind plus locally flooding rains will be quite common as each storm moves through.