Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 253 AM EST Sat Nov 11 2017 Valid 12Z Sat Nov 11 2017 - 12Z Mon Nov 13 2017 ...Cold for the eastern U.S. and rain for the West Coast... The coldest weather of the season is making its presence known across much of the eastern U.S. after the passage of an arctic front earlier on Friday. High temperatures 15 to 25 degrees below average by early November standards are making it feel more like January, and numerous freeze warnings are in effect from South Carolina to Long Island, New York, for overnight lows in the 20s to low 30s. Record lows will be possible across parts of the Ohio Valley, Great Lakes, northern Mid Atlantic, and Northeast including many of the major cities in the region on Saturday morning and again on Sunday morning across the Northeast. Across the West, a front approaching the region from the Pacific will bring a period of widespread rain to western Washington, Oregon, and also northern California, and snow for the highest elevations. The southwestern U.S. will be under the influence of a strong upper level ridge providing warm and dry weather through the weekend. Scattered showers are possible along the East Coast of Florida with moist easterly flow behind the cold front. Given the lack of instability and deep moisture, little in the way of thunderstorm activity is expected nationwide. Krekeler/Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php