Tropical Cyclone Kirrily Forms Over Coral Sea

Tropical Cyclone Kirrily formed over the Coral Sea east of Queensland on Tuesday night. At 4:00 a.m. EST on Wednesday the center of Tropical Cyclone Kirrily was located at latitude 17.5°S and longitude 151.7°E which put it about 300 miles (485 km) east-northeast of Townsville, Australia. Kirrily was moving toward the west at 7 m.p.h. (11 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 992 mb.

A Warning was in effect for the portion of the coast from Innisfail to Sarina. The Warning included Townsville, Mackay and Bowen.

A low pressure system over the Coral Sea east of Queensland strengthened during Tuesday night and the Australian Bureau of Meteorology designated the system as Tropical Cyclone Kirrily. The inner end of a rainband wrapped around the center of Kirrily’s circulation. Thunderstorms were occurring in bands in the western side of Tropical Cyclone Kirrily. Bands in the eastern side of Kirrily’s circulation consisted primarily of showers and lower clouds. Storms near the center of Kirrily generated upper level divergence that pumped mass away to the west of the tropical cyclone. Winds to tropical storm force extended out 200 miles (320 km) from the center of Tropical Cyclone Kirrily.

Tropical Cyclone Kirrily will move through an environment somewhat favorable for intensification during the next 24 hours. Kirrily will move over water where the Sea Surface Temperatures are near 29°C. It will move under the northern part of an upper level ridge over Australia. The ridge will produce easterly winds that will blow toward the top of Kirrily’s circulation. Those winds will cause moderate vertical wind shear. The wind shear will inhibit intensification, but the shear may not be enough to prevent strengthening. Tropical Cyclone Kirrily is likely to intensify during the next 24 hours.

Tropical Cyclone Kirrily will move around the northern side of a high pressure system over the Coral Sea during the next 24 hours. The high pressure system will steer Kirrily toward the west-southwest. On its anticipated track, the center of Tropical Cyclone Kirrily will approach the coast of Queensland near Townsville in 24 hours. Kirrily will bring strong winds and locally heavy rain to northern Queensland. Heavy rain could cause flash floods in some locations.

Elsewhere, Tropical Cyclone Anggrek strengthened back to the equivalent of a hurricane/typhoon over the South Indian Ocean. At 4:00 a.m. EST on Wednesday the center of Tropical Cyclone Anggrek was located at latitude 14.2°S and longitude 91.0°E which put it about 1350 miles (2180 km) east-southeast of Diego Garcia. Anggrek was moving toward the southwest at 4 m.p.h. (6 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 987 mb.