Tropical Cyclone Senyar brought wind and rain to northern Sumatra on Wednesday. At 4:00 a.m. EST on Wednesday the center of Tropical Cyclone Senyar was located at latitude 3.8°N and longitude 98.3°E which put the center about 30 miles (50 km) northwest of Medan, Indonesia. Senyar was moving toward the south-southeast at 4 m.p.h. (6 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 999 mb.
Tropical Cyclone Senyar was located at latitude 3.8°N which once again proves that tropical cyclones can occur near the Equator.
Tropical Cyclone Senyar continued to be in an environment characterized by strong vertical wind shear. An upper level ridge over the Western North Pacific Ocean was causing strong easterly winds that were blowing toward the top of Senyar’s circulation. Those winds were causing strong vertical wind shear. The strong winds were causing the distribution of thunderstorms in Tropical Cyclone Senyar to be asymmetrical. Thunderstorms were occurring in bands in the western side of Senyar’s circulation. Bands in the eastern side of Tropical Cyclone Senyar consisted primarily of showers and lower clouds.
he circulation around Tropical Cyclone Senyar was small. Winds to tropical storm force extended out 60 miles (95 km) from the center of Senyar’s circulation.
Tropical Cyclone Senyar will move through an environment that will be marginally favorable for intensification during the next 24 hours. Senyar will move over water where the Sea Surface Temperatures are near 29°C. However, the upper level ridge over the Western North Pacific Ocean will continue to cause strong vertical wind shear. The strong vertical wind shear will seriously inhibit intensification, but the shear may not be enough to prevent some intensification. In addition, the center of Senyar’s circulation will be near the coast of northeastern Sumatra. Tropical Cyclone Senyar could maintain its intensity during the next 24 hours.
Tropical Cyclone Senyar will move through along trough of low pressure that is near the Equator. The trough of low pressure will steer Senyar toward the southeast during the next 24 hours. On its anticipated track, Tropical Cyclone Senyar will move along the northeastern coast of Sumatra during the next 24 hours.
Tropical Cyclone Senyar will continue to bring strong winds and heavy rain to Aceh province in northern Sumatra. Heavy rain is likely to cause floods in some locations. There are already reports of flooding and casualties in northern Sumatra.
