Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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365 FXUS63 KEAX 072023 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 223 PM CST Sun Dec 7 2025 .KEY MESSAGES... - Very cold tonight/tomorrow morning with lows ranging from the single digits in far northern MO to the low 20s south of I-70. - Low probability for accumulating snow Wednesday night into Thursday. Highest probabilities for >0.1" of snow is across far north central into northeastern MO. && .DISCUSSION... Issued at 223 PM CST Sun Dec 7 2025 A weak mid-level shortwave trough may provide just enough forcing to wring out the little bit of moisture in the atmosphere, leading to a few flurries across far northern MO. Probabilities look less than 10% in northern MO, and are higher into IA, so have not added any mention at this time. Otherwise, it looks dry and cold. As high pressure settles into the Upper Midwest to Great Lakes, inverted surface ridging trails southwestward into northern MO. This will lead to light winds. What may limit how cold lows get tonight, is southwesterly flow on the western side of the inverted surface ridge. This will lead to some WAA but may also support cloud cover moving back into the area. Overall, northern to northeastern MO is more likely to see clear skies, at least for a portion of the night, and light winds and temperatures in that part of the forecast area could fall into the single digits. It`s a little more uncertain further south and west as cloud cover may linger longer or not erode at all. So lows for those areas will be warmer, though still very cold, with temperatures in the 20s. Temperatures rebound during the day Monday but will be much warmer by Tuesday as we see highs climb into the 50s across the southwestern half of the forecast area. The next decent chance for precipitation comes Wednesday night into Thursday. With the area remaining under broad northwesterly flow, there is subtle shortwave troughing and an associated elongated jet streak. There may be some weak/subtle frontogenesis underneath the left front quadrant of that elongated jet streak. Within this subtly dynamic environment, snow may develop with minor accumulations possible for the northeastern half of the forecast area. Overall, there is roughly a 35-45% chance for any accumulating snow (0.1" or more) for far northern into northeastern MO. Probabilities diminish with southwestward extent and just clip the northeastern portions of the KC metro. There are several other opportunities for precipitation as the northwesterly flow regime persists through the weekend. But given the large variability in the models, the probability for any accumulating for any other 24-hr period late in the week is generally less than 20%. There are also increasing probabilities for frigid temperatures to settle into the region this weekend. For Saturday, forecast lows are in the single digits above and below zero. For northern MO, there is a greater than 33% chance for subzero lows north of a Maryville to near Moberly line. Deterministic guidance shows a strong 1030+mb high pressure center dropping into the middle of the country. Origins of this airmass are from the Yukon and the Northwest Territories of Canada, and the interior of AK. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1106 AM CST Sun Dec 7 2025 Ceilings are improving from north to south as drier air builds southward. Have trended toward higher MVFR and eventually VFR conditions. Latest ensemble guidance still suggest ~20% probabilities for low MVFR ceilings though. So with that in mind, have some mention scattered wording in since it`s more probable the area will trend to higher ceilings. Northerly winds early in the period will become light/variable overnight and then trend light from the south tomorrow. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && $$ DISCUSSION...CDB AVIATION...CDB