The center of strong tropical cyclone “BATSIRAI” in the southwest Indian Ocean was located at 19.1°S, 55.7°E, about 235 kilometers northwest of Port Louis, Mauritius, at about 0:00 (UTC, hereinafter same) on Feburary 3. It had a maximum wind speed of 58 m/s and a minimum pressure of 940 hPa near the center of the cyclone.

The Infrared enhanced cloud image (Fig. 1) and the cloud & cloud top temperature (Fig. 2) of FY-2H meteorological satellite at 03:00 shown “BATSIRAI” has a clear spiral structure, and its small, round eye is surrounded by a dense eye-wall. The cloud in the north is developing vigorously, has began to affect the northeast of Madagascar. It is shown the cloud top brightness temperature of the circulation center is below -70℃.

The “BATSIRAI” is expected to move west-southward at a speed of about 15 kilometers per hour, and the intensity will gradually weakened. (Source: NSMC)

Fig.1 Infrared enhanced cloud image of FY-2H, acquired at 03:00 (UTC) on Feburary 3, 2022

Fig.2 Composite image of FY-2H: True Color & Cloud Top Temperature, acquired at 03:00 (UTC) on Feburary 3, 2022