Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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555 FXUS63 KEAX 071946 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 246 PM CDT Sun Jul 7 2024 .KEY MESSAGES... - Thunderstorms are possible lat this afternoon into this evening with the greatest focus along and south of a line from KC to Kirksville. Storms are generally expected to remain below severe limits, but could see locally heavy rainfall with training. - Additional storms are possible Monday night into Tuesday across central Missouri as remnants of tropical storm Beryl move north. - Warming trend with highs back in the 90s and potential heat index values in excess of 100F late this week into next weekend. && .DISCUSSION... Issued at 245 PM CDT Sun Jul 7 2024 Abbreviated discussion today due to ongoing convection. Clusters of thunderstorms developing in very weakly capped environment mainly along and south of a line from Kansas City to Kirksville. This area is located in the right rear quadrant of a jet streak lifting off to the northeast. A second jet streak is expected to develop across central into southern Missouri this evening, with upper level divergence mainly focused across central Missouri. The net result will be a south and eastward trend to the convection with time. Wind shear generally remains weak (> 30 knots effective shear) so storms by and large should remain sub-severe. Mean storm motion is around 25 knots, but training of storms within environment of 1.5+" precipitable water could lead to locally heavy rainfall. Expect a bulk of the region to remain dry on Monday as weak high pressure noses into the region from the northern plains. The remnants of Beryl are trending farther west with each model run. Given this trend, have increase pops Monday night across central Missouri. With the tropical connection, will need to keep an eye on the potential for locally heavy rainfall. Developing upper level ridge across the west expands eastward throughout the week leading to a warming trend. With that said, there are a series of ridge riders that are expected to move through in the mean flow, potentially serving as focusing mechanisms for thunderstorms. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1230 PM CDT Sun Jul 7 2024 Tough forecast with weak forcing within an unstable environment. Scattered thunderstorms expected through the afternooon into the evening hours. It appears convection has developed along an elevated boundary from Kansas City to Kirksville. Given the boundary is expected to sag south and east with time, have excluded thunderstorm mention in areas north of the boundary (though some CAMs suggest the potential for storms farther to the northwest). Light southerly winds are expected to become more west or north behind the weak boundary. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && $$ DISCUSSION...BT AVIATION...BT