Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 AM EST Wed Nov 11 2020 Valid 12Z Wed Nov 11 2020 - 12Z Fri Nov 13 2020 ...Heavy rain and thunderstorms to impact parts of the East Coast... ...Last day of widespread record breaking warmth in the East... ...Heavy mountain snow moving into the Pacific Northwest and Northern Rockies... A frontal system currently crossing the Mississippi Valley will bring rain and thunderstorms to parts of the eastern U.S. through Friday morning. Heavy rainfall is possible out ahead of this boundary over the Mid-Atlantic today and Thursday. 1-3 inches of rainfall are expected for this area, while some areas, especially over the Appalachians and coastal Carolinas, may see rainfall amounts exceed 3 inches by Friday morning. A Slight Risk of Excessive Rainfall leading to Flash Flooding is in effect for this region as a result. Meanwhile Tropical Storm Eta is likely to produce strong winds and 2-4 inches of rainfall over western-central Florida today. Flash flooding is possible over this area as well. Scattered to isolated thunderstorms are anticipated across the rest of the Southeast today thanks to the approaching cold front. Temperatures today are expected to be much above average across the East. Widespread areas of record breaking highs and lows are likely out ahead of the approaching cold front. Many parts of the East will see highs reaching 15-25 degrees above average while northern Maine will see temperatures peaking at 40 degrees above average. Temperatures are expected to return to normal for much of the eastern U.S. once the front passes today. Elsewhere, troughing in the Northwest will lead to the threat of heavy snow over the Cascades and Northern Rockies today. Meanwhile, the signal for a strong late-week storm over the Pacific Northwest is increasing. Strong winds with high-elevation heavy snow and low-elevation heavy rain are all possible. Kebede Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php