Weather Balloon Launch Tarp Snapping in Predawn Wind

Soft, diffused light from an overcast predawn sky illuminates a crinkled white tarp snapping violently against a metal frame. The fabric ripples with tension, its surface wet and darkened by recent rain, reflecting the pale gray air. Beside it sits a sturdy rectangular radiosonde case, its gray plastic casing marked with faded warning labels and secured with black straps. The scene sits on damp grass beside a concrete observatory dome, where converging lines of a metal railing guide toward a vanishing point in the distance. Late spring greenery peeks through puddles on the ground. one drop of water rests on the edge of the tarp, trembling as the wind shifts.