Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 406 AM EDT Tue Oct 08 2013 Valid 12Z Tue Oct 08 2013 - 12Z Thu Oct 10 2013 ...Temperatures return to normal across the East... ...Showers and thunderstorms linger across the Southeast... ...Rain and higher elevation snow likely across the Intermountain West and moving into the Southwest... Summer has officially ended across much of the Eastern Seaboard as the strong cold front moved off the Mid-Atlantic coastline last evening. High pressure will move in behind the front over the next few days and is expected to bring temperatures back down to where they should be for this time of the year. Farther south, the front will be very slow to move across Southern Florida. A surface low attached to this front, combined with plenty of tropical moisture and upper level energy, will keep showers and thunderstorms lingering in the Southeastern states through Thursday. Some moderate to heavy rainfall is possible for coastal areas behind the low as it tracks very slowly just off the coastline of the Carolinas. Out west, an upper level trough is forecast to strengthen into a completely closed off upper low as it moves down the West coast on Tuesday. Valley rain and higher elevation snow across the Pacific Northwest will drop southeastward into the Intermountain States Tuesday and Wednesday. Precipitation should remain very light and scattered in nature with no significant accumulations expected. By Wednesday afternoon, the aforementioned system will begin to move across the Southwest. This should strengthen a cold front moving across the region and initiate precipitation across Southern California and into the Great Basin. Most of this is expected to be in the form of rain, except for higher elevations where precipitation could fall as snow. Monarski Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php