Area Forecast Discussion
Issued by NWS Topeka, KS
Issued by NWS Topeka, KS
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495 FXUS63 KTOP 241139 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 539 AM CST Sat Jan 24 2026 .KEY MESSAGES... - Light to moderate snow continues today, varying in intensity through the morning and afternoon before eventually tapering off northwest to southeast tonight into Sunday morning. - Forecast snow totals have lowered slightly at 4-6" along and south of I-70, still 2-4" for counties along the KS/NE border. - Very cold air stays with us through Monday morning with the coldest wind chills today and Monday. Temperatures moderate into mid- week with dry weather next week. && .DISCUSSION... Issued at 431 AM CST Sat Jan 24 2026 09Z water vapor imagery depicts the closed low near Mexico`s Baja Peninsula starting to phase with the main upper trough, which is positioned with its axis from the Rockies through the Northern Plains. Broad isentropic ascent has led to widespread snowfall across the area through the night with some weak 700mb frontogenesis bringing some moderate snow bands at times. We are currently in the peak of the event overall, with most snow expected to fall through mid-morning and becoming lighter later this morning, especially towards central KS. The latest short-term guidance isn`t exactly in agreement on the timing of breaks in snowfall this morning and afternoon, and some models are more widespread than others on additional snowfall through the afternoon, but the trend is for lighter snow late this morning into the afternoon. A general 1-3" can be expected by sunrise this morning with another inch or two through this afternoon. Then heading into this evening, northern areas could still see some light snow linger, but attention will mostly turn to any snow associated with the upper low moving across Mexico and into west Texas. The 850mb low from this system is progged to track across the TX/OK/AR vicinity with our area in the north to northeasterly low- level winds. This should keep most of our area dry after midnight except for a band of snow extending from south central to east central KS, mainly impacting areas southeast of the KS Turnpike where up to one more inch of snow could accumulate, perhaps 2 at most towards Anderson County. All snow should move east of the area by midday Sunday. After all of this, forecast totals remain at 2-4" in the advisory area along the KS/NE border, while areas south have seen totals lowered a bit to 4-6". East central KS areas have the best chance at reaching the higher end of that range with the last band of snow late tonight into Sunday morning. Outside of the snow, very cold air remains through Monday. The Arctic sfc high nearby gives us wind chill values between -15 and -20 this morning. Sunday afternoon could give us a short period with wind chills above zero, but not by much. A reinforcing shot of cold air then comes in for Monday morning to drop our wind chill values back down to -15 to -20. From there, we turn to northwest flow aloft through next week, though a return to southerly low-level winds Monday should at least help us get to the 20s for highs. Tuesday and Wednesday bring us to the low 30s before another weak front knocks us back down to the 20s late week, all while looking to stay dry. && .AVIATION /12Z TAFS THROUGH 12Z SUNDAY/... Issued at 536 AM CST Sat Jan 24 2026 Vsby will probably bounce around between IFR and MVFR today with snowfall varying in intensity through the day, but thinking IFR is most likely to dominate. Conditions should improve later this evening and especially overnight as snowfall slows down and eventually comes to an end late in the period. Cigs will likely remain at MVFR for a while after snow ends, lifting toward the very end of this forecast period. && .TOP WATCHES/WARNINGS/ADVISORIES... Cold Weather Advisory until noon CST Monday for KSZ008-KSZ009- KSZ010-KSZ011-KSZ012-KSZ020-KSZ021-KSZ022-KSZ023-KSZ024-KSZ026- KSZ034-KSZ035-KSZ036-KSZ037-KSZ038-KSZ039-KSZ040-KSZ054-KSZ055- KSZ056-KSZ058-KSZ059. Winter Weather Advisory until 6 PM CST Sunday for KSZ008- KSZ009-KSZ010-KSZ011-KSZ012. Winter Storm Warning until 6 PM CST Sunday for KSZ020-KSZ021- KSZ022-KSZ023-KSZ024-KSZ026-KSZ034-KSZ035-KSZ036-KSZ037-KSZ038- KSZ039-KSZ040-KSZ054-KSZ055-KSZ056-KSZ058-KSZ059. && $$ DISCUSSION...Picha AVIATION...Picha