Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 430 AM EDT Sat Apr 04 2015 Valid 12Z Sat Apr 04 2015 - 12Z Mon Apr 06 2015 ...Wet and unseasonably cold from the upper Midwest to the Northeast... ...Locally heavy snows possible across northern New England... ...Low elevation rains and mountains snows expected to move across the northwestern U.S.... A low pressure system will track from the northern Mid-Atlantic states to the New England coast Saturday morning, with rain and snow spreading across the region through the morning hours. Some locally heavy snow accumulations are possible across portions of northern New England before the system tracks into the Canadian Maritimes by late Saturday. Meanwhile, showers and thunderstorms will continue to accompany the system's trailing cold front as it moves through the Mid-Atlantic states and Southeast Saturday morning. In the wake of the front, drier conditions and below normal temperatures will spread across much of the eastern U.S. and Gulf Coast states on Saturday. A reinforcing shot of colder air dropping south from Canada will keep temperatures below normal across the Northeast and upper Midwest on Sunday. A series of upper disturbances will paint a stripe of mixed precipitation from the northern plains through the Great Lakes on Sunday. Across the South, drier conditions are expected later today as the previously noted cold front drops into the northern Gulf of Mexico. However as the front begins to return north, showers and thunderstorms are forecast to return to eastern Texas and Oklahoma early Sunday, before shifting east into the lower Mississippi valley and along the Gulf Coast later in the day. Following a cold front moving into the Great Basin, below normal temperatures and unsettled conditions will spread across much of the Northwest and northern California, into the Great Basin and northern Rockies. Coastal and valley rains and mountain snows are expected to impact much of the region this weekend. Pereira Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php