Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 341 AM EDT Mon Jun 13 2016 Valid 12Z Mon Jun 13 2016 - 12Z Wed Jun 15 2016 ...Severe thunderstorms possible across portions of the central Rockies, central and northern Plains and the Midwest over the next couple of days... ...Heavy rain possible over parts the southern/central Plains and parts of the Upper Mississippi Valley... Scattered showers will persist across New England through Tuesday as an upper-level slowly lifts north and east toward the Canadian Maritimes. A majority of the Lower Great Lakes and Mid-Atlantic regions will have mostly dry condition today as surface high pressure moves in behind the front. Another round of showers and thunderstorms is forecast for Tuesday evening through at least Wednesday morning as another surface low pressure system advances to the east. A weak upper-level low over the Southern Plains/Lower Mississippi Valley, combined with moisture streaming northward from the Gulf of Mexico, will help generate showers and thunderstorm across the southern Plains - will have a strong daytime heating component in the areal coverage. The Storm Prediction Center has identified areas from the Texas panhandle to southeast Montana as having a slight risk for severe storms, with an enhanced risk over northeast Wyoming/southeast Colorado, western Nebraska and northwest Kansas. As a low pressure system and its associated fronts crosses the Rockies and advances eastward, the area of increased risk with shift further into the central Plains and Midwest for Tuesday and Wednesday. Showers and thunderstorms will develop over parts of Central California/Great Basin eastward to the Central/Southern Rockies through late Monday evening. On Tuesday, the energy will reinforce the weak front over the Upper Midwest/Central Plains. The system will produce rain over parts of the Pacific Northwest on Monday morning that will expand inland to parts of the Northern Rockies/Northern Intermountain Region by Tuesday morning. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php