{ "id": "ev-10264", "slug": "heat-wave-jp-2026-04-02", "title": "Heat wave in Japan and 3 other countries, 2 to 22 April 2026", "type": "heat_wave", "status": "closed", "start": "2026-04-02", "end": "2026-04-22", "peakDay": "2026-04-10", "countries": [ "JP", "KR", "CN", "KP" ], "footprint": { "type": "Polygon", "coordinates": [ [ [ 117.6, 44.58 ], [ 127.68, 26.2 ], [ 139.78, 33.12 ], [ 145.58, 43.33 ], [ 141.68, 45.42 ], [ 127.35, 49.43 ], [ 125.23, 49.17 ], [ 117.6, 44.58 ] ] ] }, "counts": { "byType": { "tmax_high": 66, "tmin_high": 429 } }, "dailyCounts": [ { "date": "2026-04-02", "n": 4 }, { "date": "2026-04-03", "n": 19 }, { "date": "2026-04-04", "n": 64 }, { "date": "2026-04-05", "n": 16 }, { "date": "2026-04-06", "n": 31 }, { "date": "2026-04-08", "n": 12 }, { "date": "2026-04-09", "n": 55 }, { "date": "2026-04-10", "n": 78 }, { "date": "2026-04-11", "n": 28 }, { "date": "2026-04-12", "n": 13 }, { "date": "2026-04-13", "n": 23 }, { "date": "2026-04-14", "n": 49 }, { "date": 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