Category Archives: Indian Ocean

Tropical Cyclone Asani Makes Landfall in Andhra Pradesh

Tropical Cyclone Asani made landfall on the east coast of India in Andhra Pradesh on Tuesday night. At 11:00 p.m. EDT on Tuesday the center of Tropical Cyclone Asani was located at latitude 15.8°N and longitude 80.6°E which put it 25 miles (40 km) south of Tenali, India. Asani was moving toward the west-northwest at 7 m.p.h (11 km/h). The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h). The minimum surface pressure was 986 mb.

The center of Tropical Cyclone Asani made landfall on the coast of Andhra Pradesh south of Tenali on Tuesday night. Asani was the equivalent of s strong tropical storm at the time of landfall. Winds to tropical storm force extended out 110 miles (175 km) from the center of Tropical Cyclone Asani. Thunderstorms in bands in the western and northern parts of Asani were dropping heavy rain in scattered areas near the coast of Andhra Pradesh.

Tropical Cyclone Asani will weaken steadily as it moves inland over Andhra Pradesh. The rainfall will become lighter when drier air over India is pulled into Asani’s circulation. The circulation around Tropical Cyclone Asani will become shallower when it weakens. Southwesterly winds in the lower levels over India and the Bay of Bengal could steer the weakened circulation of Asani toward the northeast later this week.

Tropical Cyclone Asani Nears East Coast of India

Tropical Cyclone Asani neared the east coast of India on Tuesday morning. At 5:00 a.m. EDT on Tuesday the center of Tropical Cyclone Asani was located at latitude 15.1°N and longitude 82.1°E which put it 90 miles (145 km) southeast of Machilipatnam, India and about about 210 miles (330 km) south-southeast of Visakhapatnam. Asani was moving toward the west at 13 m.p.h (20 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 977 mb.

Tropical Cyclone Asani maintained its intensity as it moved closer to the east coast of India on Tuesday morning. Winds to hurricane/typhoon force were occurring in an area 30 miles (50 km) north of the center of Asani’s circulation. Even though the intensity of Tropical Cyclone Asani was steady, the distribution of thunderstorms was asymmetrical. The strongest thunderstorms were occurring in bands in the southern and western parts of Asani’s circulation. Bands in the northern and eastern parts of Asani consisted primarily of showers and lower clouds. Storms southwest of the center of circulation generated upper level divergence that pumped mass away from the tropical cyclone. The removal of mass allowed Tropical Cyclone Asani to maintain its intensity. Winds to tropical storm force extended out 155 miles (250 km) from the center of Asani.

Tropical Cyclone Asani will move through an environment that will become more unfavorable for intensification during the next 12 hours. Asani will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southern part of an upper level ridge over South Asia. The upper level ridge will produce easterly winds that will blow toward the top of Tropical Cyclone Asani’s circulation. Those winds will cause moderate vertical wind shear. Asani will move toward a mass of drier air that is sinking over India. The moderate vertical wind shear and the sinking drier air are likely to cause Tropical Cyclone Asani to start to weaken as it approaches the east coast of India during the next 12 hours.

Tropical Cyclone Asani will move around the western side of a high pressure system over Southeast Asia. The high pressure system will steer Asani toward the northwest during the next 24 hours. On its anticipated track Tropical Cyclone Asani will reach the east coast of India near Machilipatnam within 18 hours. Asani will bring strong gusty winds and locally heavy rain to parts of Andhra Pradesh during the next 36 hours. Heavy rain could cause flash floods in some locations.

Tropical Cyclone Karim Moves Southwest of Cocos Island

Tropical Cyclone Karim moved southwest of Cocos Island on Tuesday morning. At 5:00 a.m. EDT on Tuesday the center of Tropical Cyclone Karim was located at latitude 17.1°S and longitude 92.4°E which put it about 445 miles (725 km) southwest of Cocos Island. Karim was moving toward the south-southeast at 15 m.p.h (24 km/h). The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h). The minimum surface pressure was 980 mb.

Tropical Cyclone Karim showed signs of weakening as it moved over the South Indian Ocean southwest of Cocos Island on Tuesday morning. The distribution of thunderstorms became asymmetrical. The strongest thunderstorms were occurring in bands south and east of the center of Karim. Bands in the northern and western parts of the circulation consisted primarily of showers and lower clouds. Storms southeast of the center of circulation were still generating upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 155 miles (250 km) from the center of Tropical Cyclone Karim.

Tropical Cyclone Karim will move through an environment unfavorable for intensification during the next 48 hours. Karim will move over water where the Sea Surface Temperatures are near 24˚C. An upper level trough over the South Indian Ocean will produce strong northwesterly winds that will blow toward the top of Karim’s circulation. Those winds will cause moderate vertical wind shear. A combination of colder Sea Surface Temperatures and moderate vertical wind shear will cause Tropical Cyclone Karim to weaken during the next 48 hours.

The upper level trough over the South Indian Ocean will steer Tropical Cyclone Karim toward the southeast during the next 24 hours. When Karim moves over colder water, the thunderstorms will not rise as high in the atmosphere and the circulation around Tropical Cyclone Karim will not be as tall. When the circulation around Karim becomes shorter, it will be steered by winds lower in the atmosphere. The winds lower in the atmosphere could turn Karim back toward the north later this week. On its anticipated track Tropical Cyclone Karim could meander south of Cocos Island while it weakens during the next several days.

Tropical Cyclone Asani Moves Northwest across Bay of Bengal

Tropical Cyclone Asani moved northwest across the Bay of Bengal on Monday morning. At 5:00 a.m. EDT on Monday the center of Tropical Cyclone Asani was located at latitude 14.6°N and longitude 85.3°E which put it about 275 miles (445 km) southeast of Visakhapatnam, India and about 595 miles (965 km) south-southwest of Kolkata. Asani was moving toward the northwest at 9 m.p.h (15 km/h). The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h). The minimum surface pressure was 980 mb.

The distribution of thunderstorms in Tropical Cyclone Asani became more asymmetrical on Monday morning as Asani moved northwest across the western Bay of Bengal. The strongest thunderstorms were occurring in bands in the western half of Asani’s circulation. Bands in the western half of the circulation consisted primarily of showers and lower clouds. Storms just west of the center of circulation generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 130 miles (210 km) from the center of Tropical Cyclone Asani.

Tropical Cyclone Asani will move through an environment that will become more unfavorable for intensification during the next 24 hours. Asani will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southern part of an upper level ridge over South Asia. The upper level ridge will produce easterly winds that will blow toward the top of Tropical Cyclone Asani’s circulation. Those winds will cause moderate vertical wind shear. Asani will move toward a mass of drier air that is sinking in the ridge over South Asia. The moderate vertical wind shear and the sinking drier air are likely to cause Asani to start to weaken during the next 24 hours.

Tropical Cyclone Asani will move around the western side of a high pressure system over Southeast Asia. The high pressure system will steer Asani toward the northwest during the next 24 hours. On its anticipated track Tropical Cyclone Asani will move toward the east coast of India. Asani could approach of Visakhapatnam in 48 hours.

Tropical Cyclone Karim Passes West of Cocos Island

Tropical Cyclone Karim passed west of Cocos Island on Monday morning. At 5:00 a.m. EDT on Monday the center of Tropical Cyclone Karim was located at latitude 12.8°S and longitude 90.9°E which put it about 410 miles (660 km) west of Cocos Island. Karim was moving toward the south at 8 m.p.h (13 km/h). The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h). The minimum surface pressure was 980 mb.

Tropical Cyclone Karim strengthened a little as it passed west of Cocos Islands over the South Indian Ocean on Monday morning. The inner end of a rainband wrapped around the center of Karim’s circulation and a small eye appeared on microwave satellite imagery. The strongest thunderstorms were occurring in bands southern and western parts of Tropical Cyclone Karim. Bands in the northern and eastern parts of the circulation consisted primarily of showers and lower clouds. Storms near the center of circulation generated upper level divergence that pumped mass away to the southeast of the tropical cyclone. Winds to tropical storm force extended out 145 miles (230 km) from the center of Karim.

Tropical Cyclone Karim will move through an environment somewhat favorable for intensification during the next 24 hours. Karim will move over water where the Sea Surface Temperatures are near 28˚C. It will move under the western end of an upper level ridge over the Southeast Indian Ocean. The ridge will produce northeasterly winds that will blow toward the top of Karim’s circulation. Those winds will cause vertical wind shear and the wind shear will inhibit intensification. The wind shear may not be large enough to stop Tropical Cyclone Karim from intensifying and Karim could strengthen a little more during the next 24 hours.

Tropical Cyclone Karim will move around the western part of a high pressure system over the Southeast Indian Ocean. The high pressure system will steer Karim toward the south-southeast during the next 24 hours. On its anticipated track Tropical Cyclone Karim will move southwest of Cocos Island during the next 24 hours.

Tropical Cyclone Asani Intensifies to Equivalent of a Hurricane/Typhoon

Tropical Cyclone Asani intensified to the equivalent of a hurricane/typhoon over the Bay of Bengal on Sunday morning. At 5:00 a.m. EDT on Sunday the center of Tropical Cyclone Asani was located at latitude 12.0°N and longitude 88.3°E which put it about 750 miles (1215 km) south of Kolkata, India. Asani was moving toward the northwest at 10 m.p.h (16 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 977 mb.

Former Tropical Cyclone 02B intensified on Sunday morning and the India Meteorological Department designated the system as Tropical Cyclone Asani. The strongest thunderstorms were occurring in bands southwest of the center of Asani’s circulation. Other bands of showers and thunderstorms were revolving around the center of Tropical Cyclone Asani. Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical cyclone. Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of Asani. Winds to tropical storm force extended out 140 miles (225 km) from the center of circulation.

Tropical Cyclone Asani will move through an environment favorable for intensification during the next 24 hours. Asani will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southern part of an upper level ridge over the Bay of Bengal. The upper level ridge will produce easterly winds that will blow toward the top of the low pressure system. Those winds will cause some vertical wind shear, but the shear will not be large enough to prevent intensification. Tropical Cyclone Asani is likely to intensify during the next 24 hours. Asani will move toward a mass of drier air when it moves closer to India in a day or two.

Tropical Cyclone Asani will move around the western side of a high pressure system over Southeast Asia. The high pressure system will steer Asani toward the northwest during the next 24 hours. On its anticipated track Tropical Cyclone Asani will move toward the east coast of India. Asani could be southeast of Visakhapatnam in 48 hours.

Tropical Cyclone Karim Strengthens West-northwest of Cocos Island

Tropical Cyclone Karim strengthened over the South Indian Ocean west-northwest of Cocos Island on Sunday morning. At 5:00 a.m. EDT on Sunday the center of Tropical Cyclone Karim was located at latitude 10.6°S and longitude 90.3°E which put it about 465 miles (750 km) west-northwest of Cocos Island. Karim was moving toward the south at 6 m.p.h (10 km/h). The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h). The minimum surface pressure was 983 mb.

The circulation around Tropical Cyclone Karim exhibited much more organization on Sunday morning as it strengthened over the South Indian Ocean. The inner end of a rainband wrapped around the western side of the center of Karim’s circulation. Other bands of showers and thunderstorms were revolving around the center. Storms near the center of circulation generated upper level divergence that pumped mass away to the east of the tropical cyclone. Winds to tropical storm force extended out 175 miles (280 km) from the center of Karim.

Tropical Cyclone Karim will move through an environment favorable for intensification during the next 24 hours. Karim will move over water where the Sea Surface Temperatures are near 28˚C. It will move under the western end of an upper level ridge over the Southeast Indian Ocean. The ridge will produce north-northwesterly winds that will blow toward the top of Karim’s circulation. Those winds will cause vertical wind shear. The wind shear will inhibit intensification, but the shear will not be large enough to stop Karim from intensifying. Tropical Cyclone Karim is likely to intensify during the next 24 hours and it could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone Karim will move around the western part of a high pressure system over the Southeast Indian Ocean. The high pressure system will steer Karim toward the south-southeast during the next 24 hours. On its anticipated track Tropical Cyclone Karim will pass west of Cocos Island during the next 24 hours.

Tropical Cyclone 02B Develops over Bay of Bengal

Tropical Cyclone 02B developed over the Bay of Bengal southwest of Port Blair on Saturday morning. At 5:00 a.m. EDT on Saturday the center of Tropical Cyclone 02B was located at latitude 9.9°N and longitude 90.9°E which put it about 165 miles (265 km) southwest of Port Blair, Andaman Islands. Tropical Cyclone 02B was moving toward the northwest at 9 m.p.h (15 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 995 mb.

The circulation around a low pressure system over the eastern Bay of Bengal strengthened on Saturday morning and the center was designated as Tropical Cyclone 02B. More thunderstorms formed near the center of Tropical Cyclone 02B. The inner end of a rainband wrapped around the southern side of the center of circulation. Other bands of showers and thunderstorms were revolving around the center. Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 70 miles (110 km) from the center of circulation.

Tropical Cyclone 02B will move through an environment favorable for intensification during the next 36 hours. The tropical cyclone will move over water where the Sea Surface Temperatures are near 31˚C. It will move under the southern part of an upper level ridge over the Bay of Bengal. The upper level ridge will produce easterly winds that will blow toward the top of the low pressure system. Those winds will cause some vertical wind shear, but the shear will not be large enough to prevent intensification. Tropical Cyclone 02B will intensify during the next 36 hours and it could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone 02B will move around the southwestern side of a high pressure system over Southeast Asia. The high pressure system will steer the tropical cyclone toward the northwest during the next 36 hours. On its anticipated track Tropical Cyclone 02B will move slowly away from the Andaman Islands and the Nicobar Islands. The tropical cyclone will continue to drop locally heavy rain over the Nicobar Islands and the Andaman Islands until it moves farther northwest of those areas. Heavy rain could cause flash floods in some locations.

Tropical Cyclone Karim Forms over the South Indian Ocean

Tropical Cyclone Karim formed over the South Indian Ocean west-northwest of Cocos Island on Saturday morning. At 5:00 a.m. EDT on Saturday the center of Tropical Cyclone Karim was located at latitude 8.0°S and longitude 89.6°E which put it about 585 miles (945 km) west-northwest of Cocos Island. Karim was moving toward the southeast at 8 m.p.h (13 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 998 mb.

The circulation around a low pressure system over the South Indian Ocean west-northwest of Cocos Island strengthened on Saturday morning and the system was designated as Tropical Cyclone Karim. More thunderstorms developed near the center of Karim’s circulation. Bands of showers and thunderstorms were revolving around the center of circulation. Storms near the center of circulation generated upper level divergence that pumped mass away to the southeast of the tropical cyclone. Winds to tropical storm force extended out 50 miles (80 km) from the center.

Tropical Cyclone Karim will move through an environment favorable for intensification during the next 24 hours. Karim will move over water where the Sea Surface Temperatures are near 28˚C. It will move under the western end of an upper level ridge over the Southeast Indian Ocean. The ridge will produce north-northwesterly winds that will blow toward the top of Karim’s circulation. Those winds will cause vertical wind shear. The wind shear will inhibit intensification, but the shear will not be large enough to stop Karim from intensifying. Tropical Cyclone Karim is likely to strengthen during the next 24 hours.

Tropical Cyclone Karim will move around the western part of a high pressure system over the Southeast Indian Ocean. The high pressure system will steer Karim toward the south-southeast during the next 24 hours. On its anticipated track Tropical Cyclone Karim will pass west of Cocos Island in 48 hours.

Low Pressure System Forms over Eastern Bay of Bengal

A low pressure system formed over the eastern Bay of Bengal near the Nicobar Islands on Friday morning. At 8:00 a.m. EDT on Friday the center of a low pressure system was located at latitude 8.6°N and longitude 92.5°E which put it about 45 miles (75 km) south-southwest of Malacca, Nicobar Islands and about 205 miles (330 km) south of Port Blair, Andaman Islands. The low pressure system was moving toward the northwest at 9 m.p.h (15 km/h). The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1001 mb.

A surface low pressure system, also designated as Invest 92B, formed over the eastern Bay of Bengal near the Nicobar Islands on Friday morning. The circulation around the low pressure system exhibited more organization on conventional and microwave satellite images. The strongest thunderstorms were occurring in a band just to the west of the center of the low pressure system. Other bands of showers and thunderstorms were revolving around the center of circulation. Storms near the center were generating upper level divergence that was pumping mass away from the low pressure system. The removal of mass was causing the surface pressure to decrease.

The low pressure system will move through an environment favorable for intensification during the next 24 hours. The low pressure system will move over water where the Sea Surface Temperatures are near 31˚C. It will move under the southern part of an upper level ridge over the Bay of Bengal. The upper level ridge will produce easterly winds that will blow toward the top of the low pressure system. Those winds will cause some vertical wind shear, but the shear will not be large enough to prevent intensification. The low pressure system will strengthen during the next 24 hours and it could intensify to a tropical cyclone during the weekend.

The low pressure system will move around the southwestern side of a high pressure system over Southeast Asia. The high pressure system will steer the low pressure system toward the northwest during the next 24 hours. On its anticipated track the low pressure system will move slowly away from the Nicobar Islands. The low pressure system will drop locally heavy rain over the Nicobar Islands and the Andaman Islands. Heavy rain could cause flash floods in some locations.