As the heavy-precip supercell progressed southeastward across northeast Colorado, on its journey from Nebraska to Nebraska, it hassled travelers at twilight with lightning, flooding rains and large hail. Most of the lightning was inside cores. A few flashes decorated the outer rim of the core, in this case the thick, rear-flank hook region, with the main low-level mesocyclone right down the road. The flash also illuminate the inner part of the “clear slot,” in this case not very clear due to being deeply infused with precip. Time exposure brightened the twilight some from its natural state.
8 SSE Iliff CO (28 Jun 23) Looking NE
40.6503, -103.043