Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 AM EDT Sun Sep 17 2017 Valid 12Z Sun Sep 17 2017 - 12Z Tue Sep 19 2017 ...Heavy rainfall possible from the Mississippi Valley to the Plains... ...Widespread rain, mountain snow and colder temperatures expected across the Northwest... ...Hurricane Jose to produce showers and dangerous surf conditions along portions of the East Coast... A frontal boundary will continue pushing eastward across the Upper Mississippi Valley and through the Central Plains. On Sunday, this boundary will provide focus for showers and thunderstorms along it as moves into the Upper Great Lakes region by the evening. There is both a marginal risk for flash flooding and a marginal risk for severe thunderstorms across parts of the Upper Midwest, Middle Mississippi Valley, and Central Plains on Sunday. By Monday, the front will stall and eventually lift north across the Plains, Mississippi Valley and Ohio Valley which will provide more rounds of showers and thunderstorms across these regions. Once again, there will be a marginal risk for both flash flooding and severe weather in the Southern Plains/Mississippi Valley for Monday. A strong cold front will push across the Pacific Northwest by Sunday night, bringing with it an increase in precipitation across the area. The front will continue to move eastward across the Intermountain West through Monday and into Tuesday, with widespread precipitation following it. On Monday, expect light amounts of higher elevation snow across the Cascades and Northern Rockies. As more precipitation moves across the Northern Rockies by Tuesday, an increase in snowfall amounts across these mountain ranges can be expected. Hurricane Jose will continue to move at a north-northeasterly track over the next few days while staying well east of the U.S. coastline. Regardless, dangerous surf and rip current conditions can be expected from the Southeast coast northward to the Mid-Atlantic coasts. The coastal portions of the Carolinas will begin to see precipitation ahead of Jose by this morning and will continue through Monday. By Monday evening, showers will begin to spread to southern New England. Ahead of the front moving across the Mississippi Valley and Plains, above average temperatures can be expected. By Tuesday, high temperatures across the Plains will reach well into the 90s. New England will also experience temperatures 10-15 degrees above normal for this time of year. The western U.S. will continue to feel much cooler temperatures through the short term period. Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php