Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 503 PM EDT Sat Jul 06 2013 Valid 00Z Sun Jul 07 2013 - 00Z Tue Jul 09 2013 ...Heavy rain continue to soak the Southeast and Ohio Valley... ...Above average temperatures to continue over the West... The story continues on with the pattern stubbornly staying in place over the continental United States the next few days. As the Bermuda high sits off the Atlantic coast, and the trough fixated over the Mississippi River valley, an atmospheric conveyor belt will maintain the delivery of Gulf moisture over the Southeast northward to the Ohio Valley. The moisture combined with diurnal instability will support the generation of showers and thunderstorms across these regions. Some of this activity could give way to flash flooding, particularly over the western portions of the Middle Atlantic and portions of both the Tennessee and Ohio Valley Saturday night and into Sunday morning. The dry conditions will come to an end for the Northeast and Middle Atlantic regions by Monday morning. The trough affecting the Mississippi River Valley and the Southeast will weaken the surface high as it finally shifts over the East Coast. Temporary relief from the heat wave will come with it as scattered showers and thunderstorms can be expected throughout the Mid-Atlantic and Northeast. Farther out west, the sweltering heat across the Southwest is expected to continue albeit a little less extreme. Scattered convection will ignite across the Rockies throughout the short term period. As the high pressure over the Southwest weakens, high temperatures will not approach record breaking conditions but yet still reach above the century mark. Fanning Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php