Tag Archives: Madagascar

Tropical Cyclone Jobo Forms North of Madagascar

Tropical Cyclone Jobo formed just to the north of Madagascar on Tuesday afternoon. At 5:00 p.m. EDT on Tuesday the center of Tropical Cyclone Jobo was located at latitude 10.3°S and longitude 49.8°E which put it about 100 miles (160 km) north of Ansiranana, Madagascar. Jobo was moving toward the west at 13 m.p.h. (20 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 north of Madagascar strengthened on Tuesday afternoon and Meteo France la Reunion designated the system as Tropical Cyclone Jobo. The distribution of thunderstorms around Tropical Cyclone Jobo was asymmetrical. Many of the stronger thunderstorms were occurring in bands on the western side of Jobo. Bands on the eastern side of the circulation consisted primarily of showers and lower clouds. The inner end of a rainband was wrapping around the western side of the center of circulation. Storms near the center started to generate upper level divergence that pumped mass away to the north and west of the tropical cyclone. Winds to tropical storm force extended out 85 miles (135 km) from the center of circulation.

Tropical Cyclone Jobo will move through an environment favorable for intensification during the next 36 hours. Jobo will move over water where the Sea Surface Temperatures will be near 29°C. It will move near the northern part of a small upper level ridge. The ridge will produce southeasterly winds which will blow toward the top of the tropical cyclone. Those winds will cause some vertical wind shear. The shear will inhibit intensification, but the wind shear will not be large enough to prevent Tropical Cyclone Jobo from strengthening. Some numerical models are forecasting that Jobo could intensify into the equivalent of a hurricane/typhoon later this week.

Tropical Cyclone Jobo will move north of a surface high pressure system over the Southwest Indian Ocean. The high will steer Jobo slowly toward the west during the next several days. On its anticipated track Tropical Cyclone Jobo will remain north of Madagascar. The steering currents could weaken later this week and Jobo could stall northwest of Madagascar.

Tropical Cyclone Iman Brings Rain to La Reunion

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.

Tropical Cyclone Guambe Moves away from Mozambique

Tropical Cyclone Guambe moved away from Mozambique on Saturday. At 10:00 p.m. EST on Saturday the center of Tropical Cyclone Guambe was located at latitude 29.1°S and longitude 38.1°E which put it about 400 miles (645 km) southeast of Maputo, Mozambique. Guambe was moving toward the southeast at 16 m.p.h. (26 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 973 mb.

Tropical Cyclone Guambe appeared to develop concentric eyewalls on Saturday which caused the circulation to weaken. The maximum sustained wind speed decreased when the original, small inner eyewall dissipated. There were fewer thunderstorms around the center of Guambe on Saturday night. The strongest thunderstorms were occurring in bands in the western half of the circulation. Bands in the eastern half of Tropical Cyclone Guambe contained more showers and lower clouds. Winds to hurricane/typhoon force extended out 20 miles (30 km) from the center of circulation. Winds to tropical storm force extended out 110 miles (175 km) from the center.

Tropical Cyclone Guambe will move into an environment that will be capable of sustaining a tropical cyclone during the next 24 hours. Guambe will move over water where the Sea Surface Temperatures will be near 26°C, but it will gradually move over colder water. An upper level trough south of Africa will approach Tropical Cyclone Guambe from the west. The trough will produce northwesterly winds which will blow toward the top of Guambe. Those winds will cause more vertical wind shear when they reach Tropical Cyclone Guambe. The combination of more vertical wind shear and colder water will cause the structure of Guambe to being a transition to an extratropical cyclone.

The upper level trough will steer Tropical Cyclone Guambe toward the southeast during the next two days. On its anticipated track Guambe will move farther away from Mozambique. Tropical Cyclone Guambe is forecast to pass well to the south of Madagascar.

Tropical Cyclone Faraji Weakens Southeast of Diego Garcia

Tropical Cyclone Faraji weakened southeast of Diego Garcia on Friday. At 4:00 p.m. EST on Friday the center of Tropical Cyclone Faraji was located at latitude 18.9°S and longitude 80.4°E which put it about 1000 miles (1610 km) south-southeast of Diego Garcia. Faraji was moving toward the west-southwest at 9 m.p.h. (15 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 987 mb.

An upper level low east of Madagascar produced strong northwesterly winds which blew toward the top of Tropical Cyclone Faraji on Friday. Those winds caused strong vertical wind shear and the winds blew the tops of many of the thunderstorms around Faraji. The strongest thunderstorms were occurring in bands southeast of the center of circulation. Bands in the other parts of Tropical Cyclone Faraji consisted primarily of showers and lower clouds. Winds to tropical storm force extended out 90 miles (145 km) from the center of Faraji.

Tropical Cyclone Faraji will move into an environment that will be unfavorable for a tropical cyclone during the next 48 hours. Faraji will move over water where the Sea Surface Temperature is near 28°C. However, the upper level low east of Madagascar will continue to produce northwesterly winds which will blow toward the top of the tropical cyclone. Those winds will continue to cause the strong vertical wind shear. Tropical Cyclone Faraji will weaken during the next 48 hours..

Tropical Cyclone Faraji will move around the northern part of a subtropical high pressure system over the South Indian Ocean. The high will steer Faraji toward the west during the next few days. On its anticipated track Tropical Cyclone Faraji will pass well to the south of Diego Garcia.

Tropical Cyclone Faraji Churns Southeast of Diego Garcia

Tropical Cyclone Faraji churned southeast of Diego Garcia on Wednesday. At 4:00 p.m. EST on Wednesday the center of Tropical Cyclone Faraji was located at latitude 16.0°S and longitude 84.7°E which put it about 1060 miles (1710 km) southeast of Diego Garcia. Faraji was moving toward the south-southwest at 5 m.p.h. (8 km/h). The maximum sustained wind speed was 105 m.p.h. (165 km/h) and there were wind gusts to 125 m.p.h. (200 km/h). The minimum surface pressure was 960 mb.

After intensification to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale on Monday, Tropical Cyclone Faraji weakened gradually during the past 48 hours. Even though Faraji weakened, the circulation around the tropical cyclone remained very well organized. A small circular eye was apparent on infrared satellite images. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Storms near the core of the circulation generated upper level divergence which pumped mass away from the tropical cyclone. Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of circulation. Winds to tropical storm force extended out 130 miles (210 km from the center of Faraji.

Tropical Cyclone Faraji will move into an environment that will become less favorable for a strong tropical cyclone during the next 48 hours. Faraji will move over water where the Sea Surface Temperature is near 28°C. An upper level trough east of Madagascar will move toward Tropical Cyclone Faraji. The approaching trough will produce northwesterly winds which will blow toward the top of the tropical cyclone. Those winds will cause the wind vertical wind shear to increase. More vertical wind shear will likely cause Faraji to weaken during the next 48 hours..

Tropical Cyclone Faraji will move around the northern part of a subtropical high pressure system over the South Indian Ocean. The high will steer Faraji toward the west during the next few days. On its anticipated track Tropical Cyclone Faraji will pass well to the south of Diego Garcia.

Tropical Cyclone Eloise Crosses Madagascar

Tropical Cyclone Eloise crossed Madagascar on Wednesday. At 4:00 p.m. EST on Wednesday the center of Tropical Cyclone Eloise was located at latitude 15.9°S and longitude 44.3°E which put it about 140 miles (230 km) north of Maintirano, Madagascar. Eloise was moving toward the west-southwest at 19 m.p.h. (31 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 995 mb.

Tropical Cyclone Eloise moved quickly across northern Madagascar on Wednesday. Eloise was emerging over the Mozambique Channel by late Wednesday. The circulation around Tropical Cyclone Eloise was relatively intact after its passage over Madagascar. Bands of showers and thunderstorms were revolving around the center of Eloise. Storms near the center of circulation generated upper level divergence which pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 125 miles (200 km) from the center.

Tropical Cyclone Eloise will move through an environment favorable for intensification during the next 36 hours. Eloise will move over water in the Mozambique Channel where the Sea Surface Temperature is near 29°C. It will move under the northern portion of an upper level ridge over the Southwest Indian Ocean. The ridge will produce easterly winds which will blow toward the top of the tropical cyclone. Those winds will cause some vertical wind shear but the shear will not be strong enough to prevent intensification. Tropical Cyclone Eloise will intensify during the next 36 hours and it is likely to strengthen into the equivalent of a hurricane/typhoon.

Tropical Cyclone Eloise will move around the northwestern part of a high pressure system over the Southwest Indian Ocean. The high will steer Eloise toward the west-southwest. On its anticipated track Tropical Cyclone Eloise could approach the coast of Mozambique near Beira in about 48 hours.

Tropical Cyclone Eloise Makes Landfall in Madagascar

Tropical Cyclone Eloise made landfall in Madagascar on Tuesday. At 4:00 p.m. EST on Tuesday the center of Tropical Cyclone Eloise was located at latitude 15.4°S and longitude 49.6°E which put it about 70 miles (110 km) south-southwest of Antalaha, Madagascar. Eloise was moving toward the west-southwest at 10 m.p.h. (16 km/h). The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h). The minimum surface pressure was 989 mb.

Tropical Cyclone Eloise made landfall on the coast of northeastern Madagascar near Antalaha on Tuesday as the equivalent of a strong tropical storm. Eloise strengthened prior to landfall. A ring of strong thunderstorms wrapped around the northern side of the center of Tropical Cyclone Eloise and an eye was beginning to form at the center. Winds to tropical storm force extended out 100 miles (160 km) from the center of circulation.

Tropical Cyclone Eloise will move north of a high pressure system over the Southwest Indian Ocean. The high will steer Eloise toward the west-southwest during the next 48 hours. Tropical Cyclone Eloise will move across northern Madagascar. The center of Eloise will pass near Mampikony in about 12 hours. Tropical Cyclone Eloise could move over the Mozambique Channel near Maintirano in about 36 hours

Tropical Cyclone Eloise will weaken while it moves across Madagascar. Eloise will bring gusty winds and locally heavy rain to parts of northern Madagascar. Flash floods could occur, especially in regions of steeper terrain. Tropical Cyclone Eloise could strengthen again when it moves over the Mozambique Channel later this week.

Tropical Cyclone Eloise Develops Northeast of Mauritius

Tropical Cyclone Eloise developed northeast of Mauritius on Sunday. At 4:00 a.m. EST on Sunday the center of Tropical Cyclone Eloise was located at latitude 12.7°S and longitude 61.5°E which put it about 605 miles (980 km) north-northeast of Port Louis, Mauritius. Eloise was moving toward the west at 14 m.p.h. (22 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 995 mb.

The circulation around a low pressure system northeast of Mauritius strengthened on Sunday morning and the system was designated as Tropical Cyclone Eloise. The distribution of thunderstorms around Eloise was asymmetrical. The strongest thunderstorms were occurring in bands in the western half of Tropical Cyclone Eloise. Bands in the eastern half of the circulation consisted primarily of showers and lower clouds. Storms near the center of Eloise generated upper level divergence which pumped mass away to the west of the tropical cyclone. Winds to tropical storm force extended out 75 miles (120 km from the center of circulation.

Tropical Cyclone Eloise will move through an environment somewhat favorable for intensification during the next several days. Eloise will move over water where the Sea Surface Temperature is near 28°C. It will move under the northern portion of an upper level ridge over the South Indian Ocean. The ridge will produce easterly winds which will blow toward the top of the tropical cyclone. Those winds will cause moderate vertical wind shear which will inhibit intensification. Tropical Cyclone Eloise could intensify slowly during the next 24 hours despite the moderate vertical wind shear.

Tropical Cyclone Eloise will move north of a high pressure system over the South Indian Ocean. The high will steer Eloise toward the west during the next several days. On its anticipated track Tropical Cyclone Eloise could approach northern Madagascar in about three days.

Elsewhere over the South Indian Ocean, Tropical Cyclone Joshua moved far to the southeast of Diego Garcia. At 4:00 a.m. EST on Sunday the center of Tropical Cyclone Joshua was located at latitude 18.5°S and longitude 89.8°E which put it about 1405 miles (2265 km) southeast of Digeo Garcia. Joshua was moving toward the southwest at 10 m.p.h. (16 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 997 mb.

Tropical Cyclone Chalane Emerges over Mozambique Channel

Tropical Cyclone Chalane emerged over the Mozambique Channel on Monday. At 4:00 a.m. EST on Monday the center of Tropical Cyclone Chalane was located at latitude 20.1°S and longitude 43.3°E which put it about 270 miles (440 km) east-northeast of Europa Island. Chalane was moving toward the west-southwest at 11 m.p.h. (17 km/h). The maximum sustained wind speed was 40 m.p.h. (80 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 999 mb.

After crossing central Madagascar during the weekend, Tropical Cyclone Chalane emerged over the Mozambique Channel on Monday. The circulation around Chalane remained relatively intact despite crossing mountains on Madagascar. The strongest thunderstorms were occurring in bands north and east of the center of circulation. Bands south and west of the center consisted primarily of showers and lower clouds. Storms near the center generated upper level divergence which pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 40 miles in the southern half of Tropical Cyclone Chalane. The winds in the northern half of the circulation were blowing at less than tropical storm force.

Tropical Cyclone Chalane will move through an environment favorable for intensification during the next 48 hours. Chalane will move over water in the Mozambique Channel where the Sea Surface Temperature is near 31°C. It will move under the axis of an upper level ridge over the Southwest Indian Ocean. The winds near the axis of the ridge are weak and there will be little vertical wind shear. Tropical Cyclone Chalane will intensify and it could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone Chalane will move north of a subtropical high pressure system over the Southwest Indian Ocean. The high will steer Chalane toward the west during the next few days. On its anticipated track Tropical Cyclone Chalane will pass near Europa Island in 18 hours. Chalane could approach the central coast of Mozambique in 48 hours. Tropical Cyclone Chalane could be the equivalent of a hurricane/typhoon when it reaches Mozambique.

Tropical Cyclone Chalane Makes Landfall in Madgascaar

The center of Tropical Cyclone Chalane made landfall on the coast of Madagascar on Saturday. At 4:00 p.m. EST on Saturday the center of Tropical Cyclone Chalane was located at latitude 17.8°S and longitude 49.2°E which put it about 50 miles (80 km) northwest of Toamasina, Madagascar. Chalane was moving toward the west at 17 m.p.h. (28 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 996 mb.

The center of Tropical Cyclone Chalane made landfall on the coast of northeast Madagascar between Fenoarivo and Toamasina on Saturday. The maximum sustained wind speed was 45 m.p.h. (75 km/h) at the time of landfall. Winds to tropical storm force extended out 90 miles from the center of the tropical cyclone. The heaviest rain was falling in bands in the western and southern parts of Chalane.

Tropical Cyclone Chalane will move west-southwest across central Madagascar during the next 24 hours. The center will pass a little north of Antananarivo. The mountains will disrupt the lower levels of the circulation and Chalane will weaken while it is over land. However, Tropical Cyclone Chalane will drop heavy rain over parts of central and northern Madagascar. The rain will be heaviest where winds push air up the slopes and flash floods could occur in regions of steep terrain.

Tropical Cyclone Chalane will move over the Mozambique Channel in a day or so. If the middle and upper parts of the circulation remain relatively intact, then Chalane could strengthen back into the equivalent of a tropical storm. Tropical Cyclone Chalane or the remnants of its circulation could approach Mozambique in 72 hours