Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 206 AM EST Sun Nov 13 2016 Valid 12Z Sun Nov 13 2016 - 12Z Tue Nov 15 2016 ...Low pressure expected to bring rain to areas along the East Coast... ...Rain expected to develop across the Pacific Northwest today... ...Well above average temperatures expected to continue for the northern plains and Upper Midwest... The central U.S. will remain predominantly dry through the short range forecast period, but rain will be on the increase along the East and West Coasts. An area of low pressure is forecast to develop along a stationary frontal boundary off the southeast U.S. coast today. The low is forecast to move northeastward along the coastline through the next couple days, developing into an organized low pressure system. The system will bring rain showers and possibly a few thunderstorms to coastal areas of the Carolinas by late today. On Monday the system will spread rain north into portions of the Mid-Atlantic region, and into the Northeast by Monday night into Tuesday. Rain is expected to spread into the Pacific Northwest today ahead of an incoming frontal system. Snow will fall at the higher elevations of the Washington Cascades. The front will move inland on Monday, but another wave of low pressure is forecast to develop along the front offshore, slowing the inland progress of the system. Thus, rain will stay in the forecast for much of the Pacific Northwest into Tuesday. Farther inland, a mix of mountain snow and valley rain is expected to increase in coverage by Monday and Tuesday as upper-level energy associated with the Pacific system moves inland. Above average temperatures are expected to continue across much of the central U.S. through the next couple days. Afternoon high temperatures are forecast to be 15 to 25 degrees above average from the northern and portions of the central plains to the Upper Midwest today and Monday. Ryan Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php