Expires:No;;137611 FXUS63 KTOP 040334 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 934 PM CST Tue Dec 3 2024 .KEY MESSAGES... - Roller coaster temperatures into early next week. - Dry weather expected for the next week. && .DISCUSSION... Issued at 220 PM CST Tue Dec 3 2024 This afternoon a mid level trough was located over the Western states and another trough over the east with a northwest flow aloft in between. At the surface was located along the western high Plains with a tight pressure gradient over the Plains. SOuthwesterly winds will continue overnight, then shift to the west late in the night and early Wednesday morning as a surface trough moves through. Lows tonight will mainly be in the lower 30s. On Wednesday, A midlevel shortwave trough will move southeast out of Canada and into the Great Lakes Region. This will push another cold front south across the Plains during the day and moving into northern Kansas by late afternoon. Prior to the cold front temperatures will warm into the 50s as cold advection will hold off until the evening hours. Temperatures will fall into the teens Thursday morning as arctic high pressure builds south into the Plains. Return flow on the backside of the departing high pressure Thursday night will start a warmup for the day on Friday as highs top out in the 40s. Rising heights and southwesterly flow with warm air advection into the central Plains will send highs back into the 50s on Saturday and Sunday. The southwest mid level trough will dampen and move northeast into the southern and central Plains, however moisture transport looks to focus from the Gulf into the Ohio Valley, so the chances for precipitation remain below 10% for central and eastern Kansas. There is some model disagreement with a northern stream trough and associated precipitation in the Plains next Tuesday. There may be a low end chance for precipitation, but too low to add to the forecast at this time. && .AVIATION /03Z TAFS THROUGH 06Z THURSDAY/... Issued at 934 PM CST Tue Dec 3 2024 MHK winds have decoupled and the potential for LLWS has increased. So amended the forecast to include some LLWS through 10Z when the pre-frontal trough is expected to move in and weaken winds. Otherwise not a lot of change to the prev forecast. VFR conditions should prevail with just some high clouds. Winds shift to the northwest by late morning behind the cold front. && .TOP WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...53 AVIATION...Wolters