####018002949#### ACUS02 KWNS 110535 SWODY2 SPC AC 110533 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1233 AM CDT Mon Mar 11 2024 Valid 121200Z - 131200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM NORTHEAST OKLAHOMA INTO SOUTHEAST KANSAS AND WEST-CENTRAL MISSOURI... ...SUMMARY... A few strong to severe thunderstorms may occur across the south-central Plains and Ozarks on Tuesday. ...Synopsis... A low-amplitude shortwave trough is forecast to progress across the central Plains on Tuesday, reaching the Mid MS Valley by late Tuesday night/early Wednesday morning. Surface low attendant to this shortwave is expected to track across KS throughout much of the day while gradually weakening. This low will likely be centered in the vicinity of the KS/NE/MO border intersection by 00Z Wednesday. Westerly flow aloft will be maintained across the Rockies and Plains in the wake of this lead shortwave as upper troughing deepens across the western CONUS. As a result, lee troughing will be maintained across the High Plains in the wake of the lead shortwave, with additional surface cyclogenesis possible Tuesday evening. Resulting surface low is then forecast to move across southwest KS/OK Panhandle into northwest OK/central KS by early Wednesday morning. ...Northeast OK/Southeast KS into Ozarks/Lower MO Valley... Modest low-level moisture advection is anticipated throughout the period from the southern Plains into the Ozark Plateau. By 00Z, mid 50s dewpoints will likely reach into central OK, with low 50s dewpoints stretching across southeast KS into west-central MO. Mid 70s temperatures are expected within the warm sector from central OK int southeast KS during the late afternoon, with slightly lower temperatures (i.e. highs in the low 70s) likely farther north across west-central MO. Most of the guidance suggests modest capping will remain in place amid these thermodynamic conditions, although an increase of a degree or two in either the temperature or dewpoints may be enough to eliminate the convective inhibition. Low-level confluence is anticipated within the warm sector, with some convergence on the dryline as well. These conditions could result in sufficient ascent for convective initiation, contingent on little to no convective inhibition. If initiation is realized, steep mid-level lapse rates and moderate deep-layer vertical shear could support a few strong to severe storms. ...Mid MS Valley... Thunderstorms are possible overnight and into early Wednesday morning across portions of the Mid MS Valley, supported by large-scale ascent and increasing mid-level moisture attendant to the shortwave moving through the region. These storms will displaced north of the better mid-level flow, with a non-severe, multicellular mode anticipated. ..Mosier.. 03/11/2024 $$