Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 255 PM EST Sat Jan 26 2019 Valid 00Z Sun Jan 27 2019 - 00Z Tue Jan 29 2019 ...Heavy rain expected across southern Florida... ...Winter storm to unfold across the Upper Midwest and Great Lakes... ...Bitter cold across the Upper Great Lakes will last through the weekend... A front has stalled off the south Florida coast and will begin to push northward overnight and into Sunday morning. Light to moderate rainfall will continue across southern Florida through late Sunday night into early Monday morning when the front finally pushes eastward away from the state. The heaviest rainfall totals are expected to fall from Ft. Myers into the Melbourne region. Flash flooding is not expected; however, some water could end up ponding on roads or low-lying areas that do not drain well. An upper level disturbance will drop southward from central Canada and will move across the Upper Midwest and Great Lakes. At the surface, a low will develop in Saskatchewan, move into the Plains and eastward toward the Upper Midwest. With plenty of moisture accompanying this system, and cold temperatures in place, snow will develop and move southward across the eastern Dakotas tonight and into Sunday. By Monday, as the surface low moves toward the Upper Midwest, heavy snow will impact portions of the Upper Great Lakes--particularly along the southeast Wisconsin along the lake-shore region where snow totals could reach over a foot. As the system progresses eastward on Monday evening, snow will taper off across the Upper Great Lakes while increasing across the lower Great Lakes. In anticipation of this event, winter storm watches have been issued from north-central North Dakota to eastern Wisconsin. Bitter cold that has gripped the Upper Midwest and Upper Great Lakes the last few days will continue its hold through Sunday. Areas from northern Minnesota to the Upper Peninsula of Michigan can expect high temperatures to not even reach zero degrees Fahrenheit for tomorrow. Meanwhile, Florida will have high temperatures in the upper 50s and lower 60s on Sunday. By Monday, some areas in the Upper Midwest/Upper Great Lakes will remain cold, however temperatures will begin to rebound and become warmer. A cold front associated with the low causing the heavy snow for the Upper Midwest will sweep across the Plains on Sunday. This will cause temperatures to plunge--with most high temperatures not reaching 32 degrees Fahrenheit (about 15-20 degrees below normal). As high pressure dominates the western U.S., temperatures especially along the West Coast will near to slightly above normal. Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php