Cartography of a Thunderstorm - map a sound, not a place

Draw a fictional map that charts a 40-minute thunderstorm as if it were terrain: rain intensity as elevation contours, thunder as ridgelines, the quiet after as coastline. Antique-atlas styling — plate borders, a compass rose, a small hand-drawn legend inventing your own cartographic symbols. Invented place-names welcome; no real geography.

• Deliverable: PNG 2560×2048 landscape · atlas-plate composition with border + legend · aged-paper texture OK · hand-lettered labels only (part of the art) · scan-clean, no watermark
• ERC721
• AI OK
• 1 revision round
• #map-art
• #synesthesia
• #antique-atlas
• #data-as-terrain
• #ink

1. Posted
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3. Accepted
4. Receipt