Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 441 PM EDT Thu Jul 10 2014 Valid 00Z Fri Jul 11 2014 - 00Z Sun Jul 13 2014 ...Showers and thunderstorms will continue to fire up within a warm and muggy airmass in place over the Southeast and Mid-Atlantic states... ...Heavy rains and strong to severe storms possible for portions of the Midwest... ...Temperatures will begin to rise in the Northwest... A frontal boundary gradually inching southeastward towards the Eastern Seaboard is expected to stall out and linger over the Southeast and Mid-Atlantic region the next few days. Widespread showers and thunderstorms will continue to light up within a warm and soupy airmass in place to the south and east of the front...and some of these storms could contain periods of heavy rains and severe weather. Strong high pressure building in to the north of the boundary should make for pleasantly dry and sunny conditions across much of the Ohio Valley...Northeast...and northern Mid-Atlantic Friday and Saturday. The Midwest will become a focus for convection late this week...ahead of strong cold front dropping through the northern tier and to the north of a warm front surging northeastward out of the Central Plains. The combination of abundant moisture and weak energy streaking through aloft could allow developing storms to become organized and capable of producing heavy downpours and severe weather. Monsoonal moisture pumping northward will continue to fuel showers and thunderstorms over the Four Corners states Thursday and Friday afternoons. Meanwhile...temperatures should begin to rise in the northwestern corner of the Nation as an upper ridge amplifies aloft. Gerhardt Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php