Tropical Cyclone Iman brought rain to La Reunion and Mauritius on Saturday night. At 7:00 p.m. EST on Saturday the center of Tropical Cyclone Iman was located at latitude 22.6°S and longitude 54.5°E which put it about 105 miles (165 km) south-southwest of La Reunion. Iman was moving toward the east-southeast at 23 m.p.h. (37 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 996 mb.
An area of low pressure strengthened on Saturday after it moved over the South Indian Ocean east of Madagascar and Meteo France la Reunion designate the system as Tropical Cyclone Iman. The distribution of thunderstorms around Tropical Cyclone Iman was asymmetrical. The strongest thunderstorms were occurring in bands in the eastern half of Iman. Bands in the western half of the tropical cyclone consisted of primarily of showers and thunderstorms. Storms east of the center of circulation generated upper level divergence which pumped mass away to the southeast of the tropical cyclone.
Rainbands on the eastern side of Tropical Cyclone Iman brought gusty winds and locally heavy rain to La Reunion and Mauritius. Heavy rain could cause flash floods in some locations, especially in areas of steeper terrain.
An upper level trough south of Madagascar will steer Tropical Cyclone Iman toward the east-southeast. On its anticipated track Tropical Cyclone Iman will move quickly away to the southeast of La Reunion and Mauritius. Weather conditions in those locations will improve on Sunday.
Tropical Cyclone Iman will move into an environment that will be marginally favorable for intensification during the next 24 hours. Iman will move over water where the Sea Surface Temperatures will be near 27°C. The upper level trough will produce northwesterly winds which will blow toward the top of Iman. Those winds will cause more vertical wind shear and they will inhibit intensification.
Elsewhere over the South Indian Ocean, powerful Tropical Cyclone Habana maintained its intensity south-southeast of Diego Garcia. At 4:00 p.m. EST on Saturday the center of Tropical Cyclone Habana was located at latitude 16.8°S and longitude 79.2°E which put it about 785 miles (1265 km) south-southeast of Diego Garcia. Habana was moving toward the southeast at 11 m.p.h. (17 km/h). The maximum sustained wind speed was 140 m.p.h. (225 km/h) and there were wind gusts to 160 m.p.h. (260 km/h). The minimum surface pressure was 945 mb.
The circulation around Tropical Cyclone Habana was small. Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of Habana. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation. The Hurricane Intensity Index (HII) for Tropical Cyclone Habana was 28.3. The Hurricane Size Index (HSI) was 12.8 and the Hurricane Wind Intensity Size Index (HWISI) was 41.1.