Tag Archives: Oman

Tropical Cyclone Shaheen/Gulab Makes Landfall in Oman

Tropical Cyclone Shaheen/Gulab made landfall on the north coast of Oman on Sunday. At 5:00 p.m. EDT on Sunday the center of Tropical Cyclone Shaheen/Gulab was located at latitude 23.6°N and longitude 57.1°E which put it about 25 miles (40 km) southwest of Al Suwaiq, Oman. Shaheen/Gulab was moving toward the west-southwest at 8 m.p.h. (13 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 985 mb.

Tropical Cyclone Shaheen/Gulab made landfall on the north coast of Oman near Al Suwaiq on Sunday. Shaheen-Gulab was the equivalent of a strong tropical storm at the time of landfall. It was producing gusty winds and dropping heavy rain on parts of the northern coast of Oman. There were already reports of flash flooding causing casualties and damage in northern Oman. Winds to tropical storm force extended out about 80 miles (130 km) from the center of circulation. The was a ring of thunderstorms around the center and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of the tropical cyclone.

Tropical Cyclone Shaheen/Gulab will move south of a high pressure system over Southwest Asia. The high will steer Shaheen/Gulab toward the west-southwest during the next 36 hours. Tropical Cyclone Shaheen/Gulab will weaken steadily as it moves over mountains in northern Oman. Shaheen/Gulab will continue to drop locally heavy rain over the normally dry region during the next day or so and more flash floods are likely to occur.

It is very rare for a tropical cyclone to thread the needle and move so far to the west over the Gulf of Oman. The small size of Tropical Cyclone Shaheen/Gulab allowed much of its circulation to remain over the warm water in the Gulf of Oman. Drier air over Iran and the Arabian Peninsula was confined to the periphery of the circulation. The inner core of Shaheen/Gulab remained intact. Tropical Cyclone Shaheen was even more unusual because it started as Tropical Cyclone Gulab over the Bay of Bengal.

Tropical Cyclone Shaheen/Gulab Moves West over Gulf of Oman

Tropical Cyclone Shaheen/Gulab moved west over the Gulf of Oman on Saturday night. At 11:00 p.m. EDT on Saturday the center of Tropical Cyclone Shaheen/Gulab was located at latitude 24.3°N and longitude 59.0°E which put it about 70 miles (110 km) north-northeast of Muscat, Oman. Shaheen/Gulab was moving toward the west at 7 m.p.h. (11 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 979 mb.

Tropical Cyclone Shaheen/Gulab was over the Gulf of Oman on Saturday night. Winds blowing around the southwestern part of Shaheen/Gulab appeared to be pulling drier air over Oman into the southern and eastern part of the tropical cyclone. A small eye was present at the center of circulation. The was surrounded by a ring of thunderstorms, but there was a break in the southeastern part of the ring of storms. The strongest thunderstorms were occurring in a band on the western side of Tropical Cyclone Shaheen/Gulab. Bands in the southern and eastern parts of the circulation consisted primarily of showers and lower clouds. The circulation around Shaheen/Gulab was small. Winds to hurricane/typhoon force extended out 15 miles (25 km) from the center of circulation. Winds to tropical storm force extended out 80 miles (130 km) from the center.

Tropical Cyclone Shaheen/Gulab will move through an environment somewhat favorable for intensification during the next 12 hours. Shaheen/Gulab will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the middle of an upper level ridge over Southwest Asia. The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear. However, dry air from Oman could continue to limit the development of thunderstorms in the southern and eastern parts of Shaheen/Gulab. Tropical Cyclone Shaheen/Gulab could strengthen during the next 12 hours. If more drier air reaches the core of Shaheen/Gulab, the remainder of the eyewall could weaken. That would reduce the maximum sustained wind speed.

Tropical Cyclone Shaheen/Gulab will move around the southern side of a high pressure system over Southwest Asia. The high will steer Shaheen/Gulab toward the west during the next 24 hours. On its anticipated track Tropical Cyclone Gulab could approach the coast of Oman near Sohar in 18 hours. Shaheen/Gulab will bring gusty winds and locally heavy rain to the part of Oman around Sohar. Heavy rain could cause flash floods. Tropical Cyclone Shaheen/Gulab will weaken quickly when it moves inland.

Tropical Cyclone Shaheen/Gulab Strengthens to Equivalent of Hurricane/Typhoon

Tropical Cyclone Shaheen/Gulab strengthened to the equivalent of a hurricane/typhoon over the Arabian Sea on Friday night. At 11:00 p.m. EDT on Friday the center of Tropical Cyclone Shaheen/Gulab was located at latitude 24.0°N and longitude 62.1°E which put it about 240 miles (390 km) east of Muscat, Oman. Shaheen/Gulab was moving toward the west-northwest at 8 m.p.h. (13 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 979 mb.

The India Meteorological Department renamed Tropical Cyclone Gulab as Tropical Cyclone Shaheen when it re-intensified over the Arabian Sea. Shaheen/Gulab intensified to the equivalent of a hurricane/typhoon east of Oman on Friday night. An eye formed at the center of Tropical Cyclone Shaheen/Gulab. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Outside the core of Shaheen/Gulab the strongest thunderstorms were occurring in bands in the southern half of the tropical cyclone. Bands in the northern half of the circulation consisted primarily of 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 115 miles (185 km) from the center.

Tropical Cyclone Shaheen/Gulab will move through an environment favorable for intensification during the next 12 hours. Shaheen/Gulab will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the middle of an upper level ridge over Southwest Asia and the northern Arabian Sea. The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear. Tropical Cyclone Shaheen/Gulab could intensify during the next 12 hours. Dry air from Southwest Asia could limit the development of thunderstorms in the northern half of Shaheen/Gulab. If the drier air reaches the core of Tropical Cyclone Shaheen/Gulab, it could weaken during the weekend.

Tropical Cyclone Shaheen/Gulab will move around the southern side of a high pressure system over Southwest Asia. The high will steer Shaheen/Gulab toward the west during the next 36 hours. On its anticipated track Tropical Cyclone Gulab could approach the coast of Oman west of Muscat in 36 hours.

Tropical Cyclone Gulab Redevelops over the Arabian Sea

Tropical Cyclone Gulab redeveloped over the Arabian Sea on Thursday. At 5:00 p.m. EDT on Thursday the center of Tropical Cyclone Gulab was located at latitude 22.8°N and longitude 65.1°E which put it about 175 miles (280 km) south-southwest of Karachi, Pakistan. Gulab was moving toward the west at 15 m.p.h. (24 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 994 mb.

Tropical Cyclone Gulab redeveloped over the Arabian Sea south of Pakistan on Thursday. Gulab originally formed over the northern Bay of Bengal a few days ago. Gulab made landfall on the coast of India near Tekkali and then it moved westward across India. Even though Tropical Cyclone Gulab weakened after it made landfall, the circulation remained relatively intact because of a favorable upper level environment. There was not a lot of vertical wind shear. In fact, upper level divergence continued to pump away mass and allow the surface low pressure system to persist. The circulation began to intensify as Gulab approached the Arabian Sea and it strengthened once the low level center was back over water.

The circulation around Tropical Cyclone Gulab exhibited more organization on Thursday. More thunderstorms developed in bands revolving around the center of Gulab. The strongest thunderstorms were occurring in bands in the southern half of Tropical Cyclone Gulab. Bands in the northern half of the circulation consisted primarily of showers and lower clouds. The northern half of Gulab appeared to be pulling drier air from Asia into its circulation. Winds to tropical storm force extended out 140 miles (220 km) on the northern side of Tropical Cyclone Gulab. Winds to tropical storm force extended out 60 miles (95 km) on the southern side of the circulation.

Tropical Cyclone Gulab will move through an environment favorable for intensification during the next 36 hours. Gulab will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the middle of an upper level ridge over Southwest Asia and the northern Arabian Sea. The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear. Dry air from Asia could continue to limit the development of thunderstorms in the northern half of Gulab. Tropical Cyclone Gulab will intensify during the next 36 hours and it could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone Gulab will move around the southern side of a high pressure system over Southwest Asia. The high will steer Gulab toward the west during the next 36 hours. On its anticipated track Tropical Cyclone Gulab could approach the coast of Oman near Muscat in 60 hours.

Tropical Depression Forms Near Western Oman

A Tropical Depression formed over the Arabian Sea near the coast of western Oman on Friday.  At 2:00 p.m. EDT on Friday the center of the tropical depression was located at latitude 16.8°N and longitude 54.2°E which put it about 10 miles (15 km) southeast of Salalah, Oman.  The depression was moving toward the west-northwest at 2 m.p.h. (3 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 1004 mb.

More thunderstorms developed near the center of a small low pressure system near the coast of western Oman on Friday and the India Meteorological Department classified the system as a depression.  Thunderstorms were forming near the center of the depression.  Bands of showers and thunderstorms were revolving around the center of circulation.  Storms near the center were generating upper level divergence which was pumping mass away from the depression in all directions.

The tropical depression will move through an environment favorable for intensification if the center remains over water.  It will move over water where the Sea Surface Temperature is near 31°C.  The depression will be under an upper level ridge where the winds are weak.  There will be little vertical wind shear and the upper level ridge will enhance upper level divergence.  If the center of the tropical depression remains over the Arabian Sea, then it is likely to strengthen into the equivalent of a tropical storm during the next 24 to 48 hours.  If the center of circulation moves inland over western Oman and eastern Yemen, then intensification becomes much less likely.

The tropical depression will move under the upper level ridge and the steering winds will be very weak.  The depression is forecast to drift very slowly toward the west during the next several days,  The center of the depression could remain just off the coast or it could move slowly inland.  The slow movement of the depression will allow it to drop locally heavy rain over parts of western Oman and eastern Yemen.  The heavy rain could very likely cause flash floods in some locations.

Tropical Cyclone Maha Forms Southwest of India

Tropical Cyclone Maha formed over the Arabian Sea southwest of India on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Tropical Cyclone Maha was located at latitude 11.0°N and longitude 73.3°E which put it about 140 miles (225 km) southwest of Mangalore, India.  Maha was moving toward the northwest at 11 m.p.h. (17 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 997 mb.

More thunderstorms formed near the center of a low pressure over the Arabian Sea west of the southern tip of India on Wednesday and the India Meteorological Department designated the system as Tropical Cyclone Maha.  The circulation around Tropical Cyclone Maha was still organizing on Wednesday.  Bands of showers and thunderstorms were forming and the bands were starting to revolve around the center of Maha.  The strongest thunderstorms were occurring in bands in the western half of the circulation.  Some thunderstorms were also forming in bands in the eastern half of the tropical cyclone, but the proximity to southern India may have been making the air a little drier in that part of Maha.  Winds to tropical storm force extended out about 80 miles (130 km) from the center of circulation.

Tropical Cyclone Maha will move through an environment favorable for intensification during the next few days.  Maha will move over water where the Sea Surface Temperature is near 29°C.  It will move underneath the axis of an upper level ridge running east to west over India and the eastern Arabian Sea.  The upper level winds will be weak and there will not be a lot of vertical wind shear during the next day or two.  Tropical Cyclone Maha will continue to intensify and it is forecast to strengthen into the equivalent of a hurricane/typhoon.  Maha could strengthen more quickly once an inner core with an eye and an eyewall develop.

The middle portion of the upper level ridge will steer Tropical Cyclone Maha toward the northwest during the next 48 hours.  When Maha reaches the northern Arabian Sea a second ridge of high pressure over South Asia will steer the tropical cyclone toward the west.  On its anticipated track Tropical Cyclone Maha will move parallel to the west coast of India.

Elsewhere over the Arabian Sea, Tropical Cyclone Kyarr was weakening rapidly southeast of Oman.  The circulation pulled drier air from the Arabian peninsula into the core of Kyarr and most of the thunderstorms dissipated when the drier air reached them.  At 5:00 p.m. EDT on Wednesday the center of Tropical Cyclone Kyarr was located at latitude 18.3°N and longitude 60.7°E which put it about 190 miles (305 km) southeast of Masirah Island, Oman.  Kyarr was moving toward the southwest at 6 m.p.h. (10 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.

Tropical Cyclone Kyarr Weakens East of Oman

Tropical Cyclone Kyarr weakened east of Oman on Tuesday.  At 11:00 EDT on Tuesday the center of Tropical Cyclone Kyarr was located at latitude 19.5°N and longitude 62.0°E which put it about 220 miles (355 km) east-southeast of Masirah Island, Oman.  Kyarr was moving toward the west at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 145 m.p.h. (230 km/h).  The minimum surface pressure was 954 mb.

The structure of the circulation around Tropical Cyclone Kyarr exhibited less organization on Tuesday.  The southwestern part of the ring of thunderstorms around the eye weakened.  In addition, bands of showers and thunderstorms in the western half of Kyarr also weakened.  Two factors seemed to be contributing to the weakening trend.  Tropical Cyclone Kyarr moved slowly during the last 24 to 36 hours.  The circulation mixed cooler water to the upper levels of the Arabian Sea and Kyarr was not able to extract as much energy from the water.  The circulation around Tropical Cyclone Kyarr may have pulled drier air from the Arabian peninsula into the western half of the circulation.  Even though Kyarr weakened on Tuesday. winds to hurricane/typhoon force extended out 35 miles (55 km) from the center of circulation.  Winds to tropical storm force extended out 130 miles (210 km) from the center.

Tropical Cyclone Kyarr will probably continue to weaken during the next several days.  Kyarr will move away from the cooler water it mixed to the surface and it will be in an area where there will not be a lot of vertical wind shear.  However, Tropical Cyclone Kyarr is likely to draw more drier air into the circulation.  The drier air will make it more difficult for thunderstorms to develop in rainbands around the tropical cyclone.

Tropical Cyclone Kyarr will move south of a ridge of high pressure over southwest Asia.  The high is forecast to strengthen during next several days.  When the high strengthens it will steer Kyarr toward the southwest.  On its anticipated track Tropical Cyclone Kyarr will move parallel to the coast of Oman.  Kyarr could approach Socotra Island and Somalia in four or five days.

Intense Tropical Cyclone Kyarr Moves Toward Oman

Intense Tropical Cyclone Kyarr moved toward Oman on Sunday.  At 11:00 p.m. EDT on Sunday the center of Tropical Cyclone Kyarr was located at latitude 18.3°N and longitude 65.2°E which put it about 460 miles (745 km) east-southeast of Masirah Island, Oman.  Kyarr was moving toward the west-northwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 150 m.p.h. (240 km/h) and there were wind gusts to 185 m.p.h. (295 km/h).  The minimum surface pressure was 932 mb.

The circulation around Tropical Cyclone Kyarr remained very symmetrical on Sunday.  Microwave satellite images seemed to indicate that there were two symmetric eye eyewalls surrounding the center of Kyarr.  Bands of showers and thunderstorms were revolving around the larger core of Tropical Cyclone Kyarr.  Storms near the core were generating upper level divergence which was pumping mass away from the tropical cyclone in all directions.

The formation of a second, outer eyewall caused the circulation around Tropical Cyclone Kyarr to increase in size.  Winds to hurricane/typhoon force extended out 45 miles (75 km) from the center of circulation.  Winds to tropical storm force extended out 150 miles (240 km) from the center.  The Hurricane Intensity Index (HII) for Tropical Cyclone Kyarr was 31.6.  The Hurricane  Size Index (HSI) was 19.1 and the Hurricane Wind Intensity Size Index (HWISI) was 50.7.

The formation of concentric eyewalls indicated that an eyewall replacement cycle was in progress.  Tropical Cyclone Kyarr will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Even though Kyarr will move through an environment favorable for strong tropical cyclones, it will likely weaken while the inner eyewall dissipates.

Tropical Cyclone Kyarr will move south of a ridge of high pressure over South Asia.  The ridge will steer Kyarr in a westward direction during the next few days.  On its anticipated track Tropical Cyclone Kyarr could approach the coast of Oman in three or four days.

Tropical Cyclone Kyarr Strengthens to Equivalent of a Major Hurricane over Arabian Sea

Tropical Cyclone Kyarr strengthened to the equivalent of a major hurricane over the Arabian Sea on Saturday.  At 5:00 p.m. EDT on Saturday the center of Tropical Cyclone Kyarr was located at latitude 16.9°N and longitude 68.6°E which put it about 705 miles (1135 km) east-southeast of Masirah Island, Oman.  Kyarr was moving toward the west at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h).  The minimum surface pressure was 944 mb.

Tropical Cyclone Kyarr intensified rapidly into the equivalent of a major hurricane during the past 36 hours.  A small eye formed at the center of circulation.  A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Kyarr.  Storms near the core of Kyarr were generating strong upper level divergence which was pumping mass away from the tropical cyclone in all directions.

The circulation around Tropical Cyclone Kyarr was very symmetrical.  Winds to hurricane/typhoon force extended out 40 miles (65 km) from the center of circulation.  Winds to tropical storm force extended out 150 miles (240 km) from the center.  The Hurricane Intensity Index (HII) was 25.1.  The Hurricane Size Index (HSI) was 15.1 and the Hurricane Wind intensity Size Index (HWISI) was 40.2.

Tropical Cyclone Kyarr will move through an environment favorable for intensification during the next 12 to 24 hours.  Kyarr will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Cyclone Kyarr could strengthen during the next 24 hours.  An inner rainband could wrap around the eye and eyewall at some point.  That would start an eyewall replacement cycle which would cause Kyarr to weaken.

Tropical Cyclone Kyarr will move south of a ridge of high pressure over South Asia.  The ridge will steer Kyarr toward the west during the next few days.  On its anticipated track Tropical Cyclone Kyarr will move toward Oman.

Tropical Cyclone Forms Southwest of Mumbai

A tropical cyclone formed southwest of Mumbai, India on Thursday.  At 11:00 p.m. EDT on Thursday the center of Tropical Cyclone 04A was located at latitude 15.7°N and longitude 71.3°E which put it about 200 miles (320 km) southwest of Mumbai, India.  It was moving toward the north at 2 m.p.h. (3 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 997 mb.

A distinct low level center of circulation formed within a broad area of low pressure over the Arabian Sea west of India.  Thunderstorms were developing near the low level center.  Bands of showers and thunderstorms were forming and the bands began to revolve around the center of circulation.  Storms near the center started to generate upper level divergence which was pumping mass away from the tropical cyclone.  Winds to tropical storm force extended out 105 miles (165 km) from the center of circulation.

Tropical Cyclone 04A will move through an environment favorable for intensification during the next 48 to 72 hours.  It will move over water where the Sea Surface Temperature is near 29°C.  The tropical cyclone will move through a region where the upper level wind are weak and there will be little vertical wind shear.  Tropical Cyclone 04A will continue to intensify and it is likely to strengthen into the equivalent of a hurricane/typhoon within 24 to 36 hours.

Tropical Cyclone 04A will move south of a high pressure system that extends from India across the northern Arabian Sea.  The high will steer the tropical cyclone in a west-northwesterly direction.  On its anticipated track Tropical Cyclone 04A should start to move away from India during the next 24 hours.  The tropical cyclone could approach Oman in about five days