Cold is now through much of the East and that will be the rule through mid week. Progressively warmer from west to east second half of the week.
Currently, the area of low pressure that brought snow to central NE and NW KS is located over NE KS . For the most part, the snow has tapered off for most of these locations and minimal, if any, additional accumulation will occur the rest of this afternoon. The main focus is now turning to the MS/OH/TN Valleys and into the SE. A trailing cold front from the low pressure area, extends from Omaha-St. Louis-Memphis-New Orleans into the Gulf of Mexico. An area of rain extends from Eastern IA along the MS river into LA. There is also a developing area of low pressure over the central Gulf. The cold front and low in KS will continue to progress slowly eastward pushing the rain into the OH/TN Valleys and the SE. As the cold front progresses eastward through the Gulf, too, it will pick up the developing area of low pressure and assist it in moving NE into the Big Bend of FL. This scenario will aid in delivering much needed rainfall to the SE Fri/Sat. The low will track up along the Atlantic Coast and will become stronger. This will deliver gusty wind conditions for many along the coast, especially for those from Philadelphia to Maine.

After this storm system moves into New England, attention will turn to a real blast of chill. A cold front with the coldest air of the season will drop into the Upper Midwest Saturday night. The chill behind this front will deliver a quick blast of late November like cold. By Monday, it will stretch from MI-southern MO-Oklahoma City-Pueblo, CO. At the same time, snow showers will be occurring across much of eastern MN and northern WI/MI with heavier lake effect bands effecting the U.P., the first lake effect of the year. On Tuesday, the cold front will stretch from ME-northern FL-Houston with wide spread snow showers across much of MI/OH/NY/PA/WV. Lake effect snow will also occur then from NE OH into Western NY. The chill will be brief, just a couple of days, before a gradual warm up takes place from the Plains eastward for the second half of next week.
Finally, here is the snowfall totals that occurred with this recent storm across NE/KS.
A low will be developing over SE CO on Tuesday and with some upper level energy sent into it from the NW it will turn into a significant storm system for this week for the Plains eastward into the OH Valley. The low will begin to deepen and intensify Tue night into Wednesday and entrain cold air into it. Rain will spread across the high plains of WY/CO/NE/KS/Dakotas on Tuesday and then Tuesday night into Wednesday will change over to snow from eastern WY into western SD/ND and the panhandle of NE. Western and central NE will see the highest snowfall accumulations, 2"-4".
The low will also spread rain and thunderstorms to the east, eventually all the way to the Atlantic coast. The system will be a slow mover and clouds and rain will be the rule for many in the Heartland for a period of 2 to 3 days with temperatures well below normal.
Also, still watching the likelihood of a low tracking along the cold front that will sweep southward from the above mentioned low, out of the Gulf of Mexico, across FL and up the east coast. This would provide for a windy/rainy/raw weekend for many along the east coast. Late in the weekend as the coastal low passes off into the Canadian Maritimes, snow will be likely for northern New England, too.
I'll start with the tropics first. There still remains TS Omar, today. It is now moving into the Central Atlantic and it will continue to move off to the NE at a quick clip and will only be an impact for shipping interests and so this will be the last post I will mention it. In addition to Omar, there are three other areas of disturbed weather in the tropics. the first is the remnants of what use to be Tropical Depression 16. This area continues to bring widespread rain to Honduras, Belize and portions of Mexico. No further organization or development is anticipated through the next several days. A second area of disturbed weather is associated with a tropical wave located about 450 mi SE of the southern Windward Islands. Shower activity has decreased with this area, today, and further development or reorganization is not likely over the next few days. Lastly, there is another tropical wave located about 500 mi SW of the Cape Verde Islands. Like the other areas of disturbed weather, further development is not expected.
Regarding the cool down that has been discussed and taking place across the Central and now Eastern portions of the U.S., the front is that has delivered this cooling is now off the Atlantic Coast, and an area of low pressure is developing off the Carolina coast. This Coastal Low will track off to the NE and will deliver rain and some gusty winds from the Carolinas into the DELMARVA through the first half of Saturday. At the same time, cooling will continue to settle in along the Appalachians while warming will begin across the high Plains. The warming will gradually spread further east through the weekend into the start of next week. A second reinforcing cold front will drop out across the Plains and sweep across the Eastern U.S. for the second half of next week. This storm system may bring the first wet snow flakes to portions of the Upper Midwest and Great Lakes. This will be monitored over the next several days.