Mesoscale Discussion 0959 NWS Storm Prediction Center Norman OK 0728 PM CDT Sat May 25 2024 Areas affected...Northern Kansas into far southern Nebraska Concerning...Tornado Watch 308...309... Valid 260028Z - 260230Z The severe weather threat for Tornado Watch 308, 309 continues. SUMMARY...The severe threat continues across northern portions of WW 309, specifically across parts of north-central Kansas into far south-central Nebraska. DISCUSSION...Over the past hour, a pair of supercells meandering across north-central KS have produced hail up to 1.5 inches per recent storm reports. 00 UTC surface observations show that moisture continues to stream north/northwest with dewpoints in the low 60s reaching the KS/NE border. Consequently, buoyancy continues to increase downstream of the ongoing storms and is expected to improve further heading into the mid/late evening hours as the surface low shifts east/northeast. Recent water-vapor imagery suggests lift associated with the primary synoptic wave is currently overspreading the Plains, and additional bubbling cumulus noted in GOES 1-minute imagery to the west of the ongoing supercells. These trends suggest that re-organization/intensification of ongoing convection, as well as new convective development, remains possible in the coming hours. VWPs across KS and OK are beginning to show signs of the onset of the nocturnal low-level jet, which should further increase low-level helicity heading into the late evening. Consequently, the potential for all severe hazards should continue across WW 309, but should be focused in the short-term (next couple of hours) across north-central KS with the ongoing convection. ..Moore.. 05/26/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OAX...TOP...ICT...GID...DDC...GLD... LAT...LON 38849660 38649679 38489932 38469977 38769992 39149989 39519963 39769937 40139724 40069700 39909681 39519661 39139657 38849660