Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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543 FXUS63 KEAX 262047 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 247 PM CST Wed Nov 26 2025 .KEY MESSAGES... * Seasonably cool temperatures through the Holiday and end of week, then colder through the weekend. - Highs fall into the 20s for many by Sunday into early next week * Confidence continues to increase for an impactful winter system to impact the region late Friday through Saturday. - Will impact post-Thanksgiving travel - Snow to rain/snow mixes mainly N of I-70 - Rain/snow mixes to rain mainly S of I-70 && .DISCUSSION... Issued at 246 PM CST Wed Nov 26 2025 The proverbial calm before the storm, which will be touched on in a moment... Aside from gusty NW winds, quiet conditions prevailed across the area underneath mostly sunny skies. The causal surface low/high pair of the gusty NW winds continues to slowly drift eastward, allowing increasing surface high influence to move into the immediate area. This has resulted in the gradual easing of the NW winds, most notably over western areas of the forecast area. Portions of E/NE Missouri continue to see gusts of 25-30+ mph, but too will ease as we working through the remainder of the day. As a result, local travel conditions ahead of Thanksgiving will not be too bad. Leading into Thanksgiving and the end of the week, large scale mid- upper level NW flow will keep overall conditions cool, and largely on the quiet side as well. Sliding down the flow will be a >120- 130kt jet streak late tonight/overnight, which will provide at minimum provide some mid-level cloud cover. A couple models attempt some very light QPF (mainly SW of the area into NWS ICT), but is quite unlikely given the overall weak forcing and substantive dry air mass below. Otherwise, expect temperatures to be on the seasonally cool side with highs in the upper 30s to upper 40s Turkey Day and a couple degrees cooler in northern areas Friday. Confidence in a post-Thanksgiving winter storm system to affect the region is a certainty at this point as a fairly quick moving PV anomaly comes on/into the PNW Friday and glides SE across the Rockies. By Friday evening, Lee Cyclogenesis and increasing southerly flow across the Southern/Central Plains begins, with the surface low moving E/ENE off the CO/NM Front Range and deepening overnight Friday into Saturday. Fortunately, greatest effects remain expected northward into Iowa/northern Illinois/Wisconsin/etc where double digit snowfall amounts appear likely. Into Missouri, there remains fairly substantial uncertainty, and primarily around/north of I-70, with regards to p-type progression and subsequent snowfall amounts. GFS/Euro operational and ensemble suites have suggested a cooling trend, and by virtue southward movement to rain/snow line, over the last couple/few cycles. The NBM has appeared too slow (warm) on this, so have trended things cooler/snowier in conjunction with neighboring offices. That said, while current forecast package will depict ~1"-4" forecast amounts (greatest NE), there are a concerning number of ensemble members (let alone deterministic operational runs) that paint >4"-6" snow potential across N/NE Missouri. For the time being, have taken a cautious approach with neighbors given differences in low tracks and cold air depictions, but would not be surprised at all to see snow trend upwards over N/NE Missouri. Headlines of some sort around/N of Highway 36 and east of I-35 will be increasingly likely as well, just a matter of what flavor so to speak. Further south (I-70 southward), including KC Metro, greater certainty in `warm enough` temperatures to largely limit snow hazards. Certainly possible to see an initial snow to rain/snow mix, transitioning to cold rain, then a brief transition back to snow from Friday overnight through Saturday evening. Additionally, thermal profiles suggest that this is a most purely a rain/snow issue versus any areas of freezing rain/drizzle or otherwise. That too should limit overall issues in these more central to southern areas. This system quickly exits the area Saturday night/overnight and will usher in an additional push of cold air into the region. This will result in the coldest temperatures of the season as highs in the 20s and lows in the single digits to teens appear likely for most of the forecast area Sunday and into early next week. A quick moving and compact shortwave too remains signaled early next week/Monday within synoptic guidance that could provide some light snow, but variance in track and strength remains fairly substantial within ensembles. However, something to keep an eye on. Behind this quick scooter, temperatures warm through at least mid-week toward seasonal norms. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 1128 AM CST Wed Nov 26 2025 Currently gusty NW winds will gradually ease through the day today. By or just a bit after 00z this evening, winds will ease back to around 5kts across the sites, but largely remain out of the NW. A mid-level cloud deck (8-10kft or so) will glide through, and is not expected to produce anything other than said cloud cover. Takeaway... VFR conditions expected throughout this period. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && $$ DISCUSSION...Curtis AVIATION...Curtis