Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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153 FXUS63 KEAX 311717 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 1217 PM CDT Fri May 31 2024 .KEY MESSAGES... - Scattered showers and thunderstorms are expected to expand east today. Locally heavy rainfall is possible. - Rounds of showers and thunderstorms are expected Sunday night through Tuesday night. Additional heavy rain are possible with these storms. && .DISCUSSION... Issued at 339 AM CDT Fri May 31 2024 Remnants of an MCV remain across east central KS. Convection associated with this disturbance has showed some signs of weakening and CAMs suggest the trend may continue through 12-15Z largely remaining across eastern Kansas and potentially retrograding back to the west as it decays. Upper trough across the northern Rockies has lifted northeast into central Canada. A fragment of the upper trough has migrated south but remains phased with the trough and is expected to move through the central US today. Very weakly unstable moisture laden environment remains across the region leading to instability showers/thunderstorms developing ahead of this wave. Weak mid level flow and precipitable water values near 1.5" could lead to locally heavy rainfall. This threat is not expected to be widespread enough to lead to the issuance of a watch. Severe weather is not expected today with limited instability and shear. As trough lifts north along the Mississippi Valley could see the potential of wrap around showers across central into eastern Missouri. Easterly flow develops tonight as weak area of high pressure develops across the Northern Plains and there is the potential for stratus development. HRRR and RAP are a bit more aggressive compared to deterministic solutions with fog development Saturday morning across eastern Kansas. Any fog/stratus is expected to gradually burn off Saturday morning as high pressure builds into the region leading to drier conditions. However, this trend does not last as a series of disturbances are expected Sunday night through the first half of next week. Sunday night a modest low level jet develops. With decent mid level lapse rates, stronger storms would have the potential to produce hail, though wind shear looks to be somewhat limiting (bulk shear 20-25 knots). Southerly winds draw heat and humidity into the region Monday into Tuesday. Could see heat indicies approach 90 F Tuesday ahead of a cold front associated with a sizable trough across the northern US sweeps through the region. Large upper level ridge builds across the western US on the backside of this system, leading to a more significant warming trend late week. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1217 PM CDT Fri May 31 2024 VFR conditions with scattered showers lingering through the first few hours of the TAF period. Overcast skies continue through the afternoon hours into the overnight before IFR ceilings are expected over the terminals Saturday morning. Once the IFR ceilings arrive, they are expected to persist into the late morning hours before giving way MVFR ceilings around 15Z. Winds will be out of the southeast around 5-7 knots Friday afternoon with occasional wind gusts expected throughout. A northwesterly shift in the winds are expected early Saturday morning. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && $$ DISCUSSION...BT AVIATION...Hayes