Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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471 FXUS63 KEAX 072004 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 304 PM CDT Fri Jun 7 2024 .KEY MESSAGES... - A complex of thunderstorms is expected to move through the region from northwest to southeast late tonight into early Saturday morning. Damaging wind gusts up to 70 mph and locally heavy rainfall will be the primary hazards. - Additional rounds of storms are possible tomorrow afternoon and tomorrow night into early Sunday morning. Marginally severe storms and locally moderate to heavy rainfall will be possible. && .DISCUSSION... Issued at 223 PM CDT Fri Jun 7 2024 The current synoptic weather pattern across the CONUS is defined by a mid level low over southern Ontario with associated troughing over the eastern Great Lakes into portions of northern Appalachia with a mid level high over Texas. Mid level flow over western Missouri and eastern Kansas remains out of the WNW between these two features. At the surface, high pressure remains in place overhead, with generally fair skies, temperatures in the mid to upper 80s, and a southerly breeze. A mid level speed max/subtle shortwave trough over western Nebraska will continue to the east southeast today and tonight, with a deepening surface low developing over north central Nebraska. Severe storms have already begun to initiate over north central Nebraska as of 230 pm. Meanwhile, further to the south out over central Kansas, a cluster of showers and thunderstorms has also developed within an area characterized by low to mid 60 dewpoints. This should continue to move to the east through the afternoon hours, but should weaken as it approaches our CWA as it enters into a drier low level environment. However, storms over north central Nebraska should move southeast through the afternoon hours, growing upscale into a mesoscale convective system and moving northwest to southeast through the region late this evening into the early overnight hours. The primary hazard with these storms would be the potential for damaging wind gusts up to 60 to 70 mph and locally heavy rainfall on the order of 1 to 2 inches. Another subtle shortwave/disturbance moves across the Plains tomorrow afternoon/evening. Scattered storms may develop by mid to late afternoon toward central Missouri, quickly moving eastward out of our region. Severe convection is likely to develop across eastern Colorado and western Kansas by tomorrow afternoon, moving eastward through the evening hours and growing upscale into another MCS, moving through our region late tomorrow night into early Sunday morning. Marginal severe weather may be possible (60 mph winds and up to quarter sized hail), but the bigger concern will be the threat for an additional round of locally moderate to heavy rainfall on top of what falls tonight, which could create some flooding concerns. Convective allowing models disagree a bit with the exact placement of the MCS tomorrow night, with the NAM Nest taking the heavier rain south of the KC metro, but the 18z HRRR dropping another 1-2 inches over the KC metro. Other than slight chance PoPs on Tuesday afternoon, the region should remain generally dry for Sunday afternoon through Thursday. Temperatures should be cooler, closer to seasonal normals, for Sunday through Tuesday with warmer temperatures returning for Wednesday and Thursday. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1243 PM CDT Fri Jun 7 2024 Currently VFR with south southwest winds around 10 knots at all terminals. These conditions should generally persist through the afternoon and evening hours, other than winds turning more southerly. A complex of thunderstorms along with MVFR CIGs and VSBY is likely to impact the terminals late tonight (between 5z and 9z). MVFR CIGs may linger through much of the morning hours tomorrow, with winds becoming variable but remaining light. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && $$ DISCUSSION...BMW AVIATION...BMW