English: The Japan Meteorological Agency’s Himawari-8 satellite captured a very powerful extratropical cyclone located to the east of Hokkaido, Japan at 00:00 UTC on April 27, 2021. Once the most intense April tropical cyclone on record, Typhoon Surigae became extratropical on April 25. However, it explosively deepened next day, reaching ten-minute maximum sustained winds at 70 knots and then the central pressure at 944 hPa. Surigae could be considered as a very unusual April cyclone during both of its tropical and extratropical stages.