.Historic winter storm to bring more heavy snow and blizzard conditionsto portions of Colorado, New Mexico, and the Oklahoma and Texas Panhandlethrough tonight......Showers and thunderstorms will bring the threat of flash flooding tothe southern Plains through tonight, and into the Lower Mississippi Valleyand Mid-South for Saturday and Saturday night......Above average temperatures continue for much of the country thisweekend......Atmospheric river to arrive across the Pacific Northwest on Su...