Overview
- The organized multicell/ bowing complex that produced widespread damaging winds has shifted east and weakened after moving through the central Plains.
- Overnight into June 9 the convective cluster produced measured gusts of 60–70 mph and caused flash flooding in Furnas County, Nebraska.
- Earlier discrete supercells over Kansas and southern Nebraska formed in an extremely unstable air mass with MLCAPE around 4000–5000 J/kg and posed a risk for very large hail.
- SPC mesoscale discussions and WPC coordination show a renewed severe threat developing across much of the western Dakotas and parts of the southern High Plains with additional severe thunderstorm watches likely.
- Forecasters point to a strong upper trough, an elevated mixed layer, a strengthening low‑level jet, and mesoscale boundaries that promote storm clustering, and they urge residents to monitor local NWS watches and warnings for damaging winds, large hail, flash flooding, and isolated tornadoes.