Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 353 AM EDT Sun Jul 10 2016 Valid 12Z Sun Jul 10 2016 - 12Z Tue Jul 12 2016 ...Slight and enhanced risks of severe thunderstorms over portions of the northern Plains and Upper Midwest... ...Heavy rain possible from parts of the Upper Mississippi Valley westward to parts of the Northern Rockies... ...Temperatures will be 15 to 20 degrees below average over parts of the Pacific Northwest to the Northern Rockies... Multiple days of showers and thunderstorms are in store for much of northern Plains and Upper Midwest/Upper Mississippi valley as a low pressure system tracks north and east. Gulf moisture will stream northward into the system aiding in the development of higher rainfall. Excessive rain and flash flooding will be possible across portions of North Dakota and Upper Midwest through Tuesday morning. This setup will favor strong to severe thunderstorms across much of the High Plains and Upper Midwest. The Storm Prediction Center has most of this region under a slight risk, with an enhanced area focused over North Dakota and western Minnesota for today. Cooler and wet conditions will continue across much of the Northwestern states. Upper-level energy and developing onshore flow will produce rain from parts of the Pacific Northwest to the Northern Intermountain Region. The rain will continue over the Northern High Plains westward to the Northern Rockies through Monday, while ending over parts of the Pacific Northwest by Monday morning. Many locations from the Pacific Northwest to the Northern Rockies will have afternoon temperatures of 15 to 20 degrees below average. Low pressure over the Northeast will dissipate and redevelop over the Western Atlantic by Monday. Showers and thunderstorms will develop over parts of the Lower Great Lakes to New England through Sunday night. Light rain will linger over parts of New England overnight Sunday into Monday. Showers and thunderstorms are also forecast along a boundary spanning from the Lower Mississippi valley to the Southeast and Mid-Atlantic. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php