Area Forecast Discussion
Issued by NWS Topeka, KS
Issued by NWS Topeka, KS
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
173 FXUS63 KTOP 272309 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 509 PM CST Thu Nov 27 2025 .KEY MESSAGES... - Rain will develop Friday night with mix of rain and wet snow on Saturday. Any accumulation would be minor (half inch or less on grassy areas) and mainly confined to the far northern counties. - A colder storm system will bring a chance for snow to the area Sunday night and Monday. This system would have a better chance to produce accumulating snow with potential travel impacts across the area Monday. - Unsettled pattern will persist through next week with colder than avg temps expected. && .DISCUSSION... Issued at 327 AM CST Thu Nov 27 2025 The forecast focus remains on the storm system that will impact the area Friday night into Saturday with a second colder storm with a chance for snow later Sunday night through Monday. A subtle weak wave combined with 850-700mb WAA appeared to be responsible for the morning clouds and flurries that have since dissipated as the wave departs and shallow lift weakens. Light winds will become southeast tonight as the atmosphere responds to the wave that is now moving through the PAC NW and will dive ESE toward the area Friday. In advance of the wave WAA/lift should produce more mid cloud on Friday with stronger/deeper lift expected to focus to our northeast. There could be some sprinkles/flurries across the north during the afternoon however chances appear low and there would be no impacts. Stronger lift and precip will develop Fri night with strong WAA/LLJ expected across the area which should keep temps above freezing and limit precip to rain/drizzle most areas as the low develops across southwest KS and tracks ENE. This is an energetic system with 110kt jet digging into the backside of the 500mb trough so expect widespread precip to develop overnight into early Saturday. Critical thicknesses and Tw fcsts suggest rain until around 12z Sat when some mix of rain and wet snow could evolve across central/north central KS. The window of max lift/precip appears to be 09-15Z saturday when the heaviest rain/precip should fall. It will be a progressive system so the time window of any wet snow mix would be small and with warm temps to begin with this should limit any accums. All in all our previous forecast appears on track with rain mixing with or changing to wet snow with some minor (less than one half inch) accums possible on grassy areas across central and northern KS with perhaps a trace along the I-70 corridor from Alma east to Lawrence and southward. All in all it will be a miserable day to be outdoors on Saturday with windy and colder conditions expected to develop by afternoon as the low departs with a quick end to the precip expected from west to east. Colder air moves in for Sat night and Sunday. Any break on Sunday will be short lived as the next storm system and associated lift will overspread the region later Sunday night and Monday bringing a chance for snow to the area. This system may actually have more of an impact on travel since it will be colder with snow potentially accumulating on surfaces including roadways on Monday. Stay tuned for more on this system as we head into the weekend. Colder than avg conditions will remain in place for much of next week as the region remains in troughing aloft with a high degree of uncertainty with regard to precip chances next week. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 509 PM CST Thu Nov 27 2025 Mostly clear skies and light/variable winds will continue overnight. During the day tomorrow, winds become more southeasterly and increase to around 10 kts. Clouds will also steadily thicken, mainly high clouds during the morning but lowering to around 3-6 kft by early evening. Rain is likely to hold off until after the end of this TAF period. && .TOP WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Omitt AVIATION...Reese