


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
900 FXUS63 KTOP 071718 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 1218 PM CDT Sat Jun 7 2025 .KEY MESSAGES... - A isolated to scattered showers and thunderstorms will be possible through the morning hours. The stronger storms may produce small hail - Additional chances (20-40%) for storms come Sunday afternoon and evening with the potential for a few strong to severe storms. - Dry conditions expected Monday through Wednesday. && .DISCUSSION... Issued at 346 AM CDT Sat Jun 7 2025 Early this morning a short-wave upper trough was moving east across western KS. At the surface an outflow boundary/stationary front extended from the northern TX PNHDL east-northeast across the KS/OK border. A severe complex of storms were moving east along and just north and south of the boundary. The complex of storms will drift east-southeast during the morning hours into southeast KS, then northeast OK/southwest MO/northern AR. Isolated to scattered elevated storms will possible through the morning hours across the CWA but as the H5 trough shifts east by afternoon, the ascent will shift east across MO and the shower and storm chance will end. A more amplified upper trough will dig southeast from central Canada into the northern Great Lakes. The southern extend of the H5 trough axis will shift southeast across the CWA Sunday afternoon. A surface cold front will push southeast across the CWA during the afternoon hours of Sunday. Thunderstorms will develop along the front and some of these storm may be strong to severe as MLCAPE will increase ahead of the front to around 2000 J/kg and effective shear will increase to 30 KTS. The primary hazard would be severe wind gusts with any line of storms that develop and any isolated storm within the line may produce large hail if the updraft develops mid- level rotation. The front should move southeast of the area Sunday evening and the rain chances will end from northwest to southeast across the CWA. The extended forecast looks dry through the end of next week. An upper trough will move onshore across the western US and southwesterly flow across the central Rockies will cause a lee surface trough to deepen across the high Plains. Southerly low-level flow across the southern and central Plains will begin to transport rich gulf moisture northward providing isentropic lift for a chance for showers and thunderstorms by Thursday into the next weekend. && .AVIATION /18Z TAFS THROUGH 18Z SUNDAY/... Issued at 1218 PM CDT Sat Jun 7 2025 Front has moved southeast of KTOP and KFOE, bringing shower chances to an end until tomorrow afternoon. Winds have turned northerly behind the front and were briefly a bit gusty but have since quieted to around or below 10 kts, where they should stay through the rest of the period. Skies stay mostly clear until mid- day tomorrow as well. && .TOP WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Gargan AVIATION...Reese