Area Forecast Discussion
Issued by NWS Wichita, KS
Issued by NWS Wichita, 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
868 FXUS63 KICT 301136 AFDICT Area Forecast Discussion National Weather Service Wichita KS 636 AM CDT Wed Sep 30 2026 .KEY MESSAGES... - Heavy rain today, especially across western and central Kansas. Will be a chance for a few severe storms this afternoon, mainly for locations west of I-135. - Best chance for heavy rain and flooding will shift east tonight, with the Flint Hills into southeast Kansas having the higher chances. && .DISCUSSION... Issued at 227 AM CDT Wed Sep 30 2026 Powerful upper low is currently working its way across the Desert Southwest. What was left of Polo got quickly pulled northeast and is now tracking across northeast NM. At the same time a strong jet max is also lifting into eastern NM. A widespread area of showers and a few storms are lifting across the TX/Ok Panhandles in response to strong upper diffluence along with very impressive 850-700mb moisture transport. The remnants of Polo are also aiding in the widespread rain to our southwest. This area of moderate to heavy rainfall will continue lifting northeast this morning and will encompass all of western and central KS by 12z. By the early afternoon, area of moderate/heavy rain will be lifting into north central KS as surface low develops over the OK Panhandle. Warm front will extend northeast from the surface low into north-central KS. The main question for this afternoon will be if and where surface based convection will develop. Most likely area would be east and northeast of the sfc low, which would generally affect our western flank, along and west of Highway 14. With very low LCLs and high 0-3km CAPE, it`s not out of the question we see some low topped supercells that could produce a couple brief tornadoes, like what happened over western KS Tuesday. With cloud bases so low, it won`t take much to get any rotation to the ground. Upper low will move out across the Southern High Plains tonight and by 12z Thu will be situated over far southwest KS. The main area for heavy rain tonight into Thu morning still looks to be from the Flint Hills into southeast KS. This is where the better 850mb theta-e advection will be located along with right entrance region of strong upper jet. With extreme PWs in place, any of the stronger showers or storms tonight will likely produce very high rainfall rates and potential flooding. If the 12z model data remains consistent, it`s possible we may end up needing a flood watch for southeast KS for tonight. Upper low will quickly track east on Thu and also start to get sheared apart. As this occurs, precip will also shift southeast, with only se KS still seeing rainfall for Thu night. By 12z Fri, what is left of this system will stretch from central MO and down through central/sw TX, with rain chances southeast of the forecast area. Precip is then expected to remain out of the forecast through the weekend with very comfortable temps anticipated. && .AVIATION /12Z TAFS THROUGH 12Z THURSDAY/... Issued at 631 AM CDT Wed Sep 30 2026 Main aviation concern will be showers and storms. Widespread area of showers is currently lifting across western and central KS with another around about to lift into southwest/south central KS. This will keep showers in through all of the morning hours for areas along and especially west of I-135. Even though the showers do not look like much on radar, they are dropping vis to the 2-3sm range as they pass over a site. We may see a few more storms mix-in this afternoon into the early evening, mainly along and west of I-135. We are still looking for an uptick in convection tonight across southeast KS, with some heavy rain possible. As far as cigs go, while most sites will remain at VFR levels, we will likely see a few pockets of MVFR levels with the heavier rainfall. && .ICT WATCHES/WARNINGS/ADVISORIES... Flood Watch through Thursday evening for KSZ032-033-047>049. && $$ DISCUSSION...RBL AVIATION...RBL