Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 459 PM EDT Mon Oct 07 2013 Valid 00Z Tue Oct 08 2013 - 00Z Thu Oct 10 2013 ...Showers and thunderstorms will continue move through the Northeast... ...Heavy rainfall possible over portions of the Southeast... ...Potential snowfall over the higher elevations in the Intermountain West... An impressive cold front advancing toward the East Coast, from Quebec to Florida, will begin to exit the Middle Atlantic by Monday evening. Showers and thunderstorms will also push offshore as the cold front continues along its easterly path; however, showers and thunderstorms will continue through Monday evening for the Northeast and begin to taper off by Monday night and into Tuesday morning. Some of the thunderstorms could be severe. As the northern portion of the cold front moves away from the East Coast by Tuesday evening, the southern portion in Florida will begin to slow down and eventually stall out. The low along the stationary front will be the focus for multiple rounds of showers and thunderstorms along the Southeast coastline from Monday evening through the end of the short term period. With ample of moisture available, heavy rainfall along the coast of the Carolinas and portions of Georgia will be possible and may give way to risk of flash flooding. Showers are expected to continue to fall in the Pacific Northwest region through Tuesday as a mid-level disturbance moves along the base of a trough that has already pushed inland. This mid-level trough will continue to strengthen on Tuesday and into Wednesday as it digs further south along the West Coast and become a closed low. The precipitation along the Coastal Range will drop further south as the aforementioned trough digs south. By Thursday morning, the mid-level low will be over the Intermountain West, along with a stationary and cold front at the surface, will be the axis for precipitation over this area. Expect the precipitation to begin by Wednesday morning with rain in the lower elevations and snow in the higher elevations. Fanning Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php