Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 246 AM EST Wed Nov 22 2017 Valid 12Z Wed Nov 22 2017 - 12Z Fri Nov 24 2017 ...More heavy rain expected for the Northwest and another cold front will sweep through the central and eastern states... The West Coast north of San Francisco will remain active weatherwise through Thanksgiving with persistent onshore flow and deep moisture moving inland. The result of this atmospheric river will be a heavy rainfall event along and west of the Cascades, with the potential for amounts in excess of three inches possible, particularly for western Washington. Moderate to heavy rain can also be expected for parts of the northern Rockies as the moisture moves farther inland. Given the warm nature of this weather pattern, snow will be confined only the highest mountain locations, mainly above treeline. Some instances of flooding will also be possible across parts of the Pacific Northwest. East of the Rockies, a cold front will exit the East Coast on Wednesday and bring a return to cooler weather for much of the eastern U.S. Showers and a few thunderstorms will be possible across Florida and the southeast U.S. coast over the next couple of days owing to this cold front that is forecast to stall near this area. Warm and dry conditions will continue for the Desert Southwest with highs near 90 degrees for the lower elevations as an upper level ridge governs the weather pattern. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php