Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 308 PM EDT Sun Jun 29 2014 Valid 00Z Mon Jun 30 2014 - 00Z Wed Jul 02 2014 ...The anomalously strong surface low over south central Canada continues to pull away but showers and windy conditions persist over North Dakota... ...Cooler air is expected to move eastward across the Northern Rockies, Northern and Central Plains, Upper Mississippi Valley and parts of the Midwest starting on Monday with showers and thunderstorms along the leading cold front.... ...A surface low spinning east of Florida could bring showers and thunderstorms into coastal areas of the Southeast... The deep storm over south central Canada will begin to weaken and slowly move northeastward over the next few days. Showers and breezy conditions are expected to continue especially over northern North Dakota as the storm system fills over Canada but its circulation continues to expand. So even though the storm will be weakening, it will still affect the region due to its large size. Starting Monday, cooler should begin to sweep eastward across the Northern Rockies and the Northern Plains states. By Monday night, the leading edge of the cooler air should extend from the Central Plains across the Mid Mississippi Valley into the Midwest, with showers and thunderstorms along and ahead of the cold front. Through Tuesday, relatively cooler air for the first of July should still cover much of the Northern to Central Plains, the upper Mississippi Valley into the Midwest. As the front moves toward Oklahoma and Kansas and stalls, it should become a focus for developing showers and thundershowers beginning on Monday night through Tuesday into Wednesday morning into the mid Mississippi Valley. By then, locally heavy rainfall could again be a concern for possible local flash flooding. Warm and humid conditions will be accompanied by a large area of scattered showers and thundershowers from the Southeast across the Tennessee and Ohio Valleys across the Appalachians. This area should begin to diminish in size and intensity by Monday evening, although local storms are still capable of producing heavy rainfall. A surface low slowly sinking slowly southward over the western Atlantic will bring scattered showers and thunderstorms into coastal areas of the Southeast and Florida. This system still has the potential to form into a tropical storm over the next 48 hours. Please refer to the National Hurricane Center for the latest information. Kocin Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php