Nebraska Supercell Sustains Large Hail, Severe Gust Threat — SevereWX

A stubborn supercell structure is holding firm in parts of central and eastern Nebraska, delivering risks of large hail up to 1.75 inches and wind gusts to 70 mph as it drifts south-southeast.

The Storm Prediction Center's Mesoscale Discussion 2038 highlights this isolated storm, now west and southwest of O'Neill, rooted in a layer with strong shear and 1500-2000 J/kg MUCAPE. Warm advection is fueling ascent, keeping the supercell alive despite a cool, stable near-surface layer. Expect the threat to persist into the 11 AM-1 PM CDT window, potentially nudging toward Columbus and Grand Island.

Strong mid-level flow from a digging shortwave trough supports the storm's rotation, with possible upscale growth into a small cluster. SPC notes a 40% chance of a severe thunderstorm watch, but trends are under close watch.

Key Threats:

Motion remains slow southeastward, impacting rural areas but nearing population centers. This fits into today's broader Midwest severe pattern but stands out for its supercell persistence.

Stay vigilant if you're in the path—monitor local NWS updates, radar, and have a shelter plan ready for sudden large hail or damaging winds.

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