000 FXUS63 KEAX 061750 AFDEAXArea Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 1250 PM CDT Mon Oct 6 2025
.KEY MESSAGES...
- Showers and thunderstorms linger across far NW MO and NE KS through the overnight. An isolated strong storm with gusty winds and heavy rain is possible. Rain rates look to be low enough to curtail flooding concerns.
- Storms stay NW of the I-35 corridor most of the day. Some isolated storms are possible across central MO. A few of these storms could be strong with small hail and gusty winds.
- Storms are expected to move eastward this evening and through the overnight. Coverage looks to become more scattered, especially by daybreak Tuesday.
- More seasonal temperatures expected this week before warming back above average next weekend.
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.DISCUSSION... Issued at 227 AM CDT Mon Oct 6 2025
An area of showers and thunderstorms is slowly making its way into far NE KS and NW MO. The surface front is expected to detach from the parent boundary and race ahead of the storms making them become more elevated. This will result in a less organized convective environment. Storms are expected to be maintained by passing shortwaves and CVA aloft as well as the 850mb front which is expected to progress much more slowly. Obs and CAMs continue to show a reasonable favorable convective environment with a narrow band of CAPE of 500-1000 J/kg along the line. This could lead to some embedded stronger storms; however, that favorability is waning. As the surface front moves into Missouri, the MUCAPE disperses becoming more diluted yielding enough instability to keep storms going, but not enough for deep convection.
The upper level front is expected to stall out across NE MO and NE KS residing there for much of the overnight. With the general weakening of substantial lift over the area, rain rates looks to remain relatively benign enough to mitigate most flooding concerns to just pooling due to excessive runoff. As the nocturnal LLJ weakens after daybreak, storm coverage becomes more scattered bringing some breaks in the precipitation through the morning. Isolated showers and thunderstorms are expected to form along the surface front which by midday should be making it east of the I-35 corridor.
The moving of this front across the region through the day also sets up a dichotomy in high temperatures. Rain cooled areas of NW MO and NE KS might struggle to reach 70 degrees whereas areas across central MO flirt with the 90s. This warm sector across MO could also pose a potential severe weather threat as the front works its way into that region later in the afternoon/evening. Fortunately, CAPE and shear values are overall fairly low; however, there are some pockets of 20+ knot shear and 1000+ J/kg CAPE which could entice the development of an isolated strong storm with gusty winds and small hail. The overall severe threat remains marginal.
A secondary surface cold front develops colocated with the upper level boundaries and migrates its way into the region Monday night. This wholesale shift pushes showers and thunderstorms through the region late Monday night into early Tuesday which is when areas along and east of I-35 will see their highest chances for precipitation. Isolated showers and thunderstorms linger through Tuesday afternoon; however, cooler, more stable behind the front eventually moves in dissipating storms through the afternoon hours. By Tuesday evening, more seasonable temperatures envelope the area. Highs Tuesday through Friday start in the (rain cooled) upper 60s elevating tot he mid to upper 70s. By the end of the week, southerly midlevel flow opens back up lifting highs back into the 80s.
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.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1244 PM CDT Mon Oct 6 2025
Additional rounds of showers and storms expected mainly for eastern KS, western MO, and northeastern MO with a cold front pushing through the area. Later this evening, precip chances will become more widespread and winds will shift out of the north. A few wind gusts to around 15-18 kts can also be anticipated with frontal passage. Additional rounds of showers and storms possible tonight into tomorrow morning. However, confidence is low in exact timing and location.
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.EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None.
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DISCUSSION...Pesel AVIATION...Collier
NWS EAX Office Area Forecast Discussion