884 FXUS63 KEAX 150403 AFDEAXArea Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 1103 PM CDT Sun Sep 14 2025
...06z Aviation Update...
.KEY MESSAGES...
- Above normal temperatures continue today into the first half of next week. Highs remain in the upper 80s to mid 90s into Tuesday.
- A few chances for isolated to scattered showers and storms (20- 30%) Sunday afternoon/evening as well as Monday and Tuesday afternoon/evening. No severe weather expected.
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.DISCUSSION... Issued at 326 PM CDT Sun Sep 14 2025
This afternoon the local area resides in between a upper level ridge just to the east of the forecast area and a upper level shortwave moving through the central Plains. A stationary front is extending from central Iowa to near to MO/IL state line. Weak convergence along this boundary coupled with modest instability may allow for widely scattered thunderstorms to develop over the eastern CWA this evening into tonight. The upper level trough over the central Plains will make very little eastward progression tonight as it moves northward into the northern Plains looking to round the upper ridge to the east. This will keep shower and thunderstorm activity that is over central Kansas mostly west of the area although a few storms will be possible over northeastern Kansas and northwest Missouri tonight. Monday and Tuesday, another upper level trough will move slowly through the central Rockies as the upper level ridge remains anchored just east of the area. Lead shortwaves out ahead of the main trough may provide enough of a focus for widely scattered storms to develop both Monday and Tuesday afternoon and evening. With continued southwest flow aloft, temperatures will still remain well above normal through Tuesday with highs in the upper 80s to lower 90s.
The rest of the forecast period from Wednesday through Sunday looks to remain very unsettled. The aforementioned upper level trough over the central Rockies will very slowly move out into the western High Plains Wednesday. Lead shortwave ahead of this feature will help force a cold front into the area bring better chances for widespread showers and thunderstorms. This upper level trough will develop a closed low in it base across Nebraska Wednesday night into Thursday. This upper level low will then spend Thursday through Saturday very slowly moving eastward across Nebraska keep shower and thunderstorm chances continuing through that period. Sunday the upper level low moves into Iowa and finally opens into a more progressive open wave however, shower and thunderstorm chances will persist. Temperatures Wednesday will range from the lower 80s
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.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/... Issued at 1100 PM CDT Sun Sep 14 2025
Decaying showers from activity west of the Missouri river will continue their decay as the run into a very dry and increasingly stable air mass. As such, have stripped out any PROB30 -SHRA mentions. Thus, VFR conditions prevail overnight and through the period. By Monday afternoon/early evening, it is possible for a few/scattered air mass type convection to occur, but best opportunity looks to be eastward into central Missouri where there too will likely be a weak boundary/area of convergence. Given the low confidence, have kept the latter half of the TAF clear/VFR as well.
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.EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None.
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DISCUSSION...73 AVIATION...Curtis
NWS EAX Office Area Forecast Discussion