What timing pattern points toward the roof drainage? The safest answer begins by recording location, trigger and timing before assigning a cause.
What the question is testing
Water can travel laterally along membranes, decking and framing before becoming visible far from the entry point. The question becomes more useful when it separates what happened first from what was noticed later.
A practical comparison
Inspect accessible drainage discharge Repeat the observation only under safe, comparable conditions and note what stayed unchanged.
Limits and next step
Do not climb unsafe roofs or dismantle flashings during active weather. Use the connected atlas guide to build a bounded evidence packet and a clear professional handoff when needed.