Hurricane Larry Intensifies to a Major Hurricane

Hurricane Larry intensified to a major hurricane on Friday evening. At 11:00 p.m. EDT on Friday the center of Hurricane Larry was located at latitude 15.5°N and longitude 43.3°W which put it about 1230 miles (1980 km) east of the Leeward Islands. Larry was moving toward the west-northwest at 16 m.p.h. (26 km/h). The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 135 m.p.h. (220 km/h). The minimum surface pressure was 965 mb.

Hurricane Larry continued to intensify on Friday evening and the wind speed increased to that of a major hurricane. An eye with a diameter of 17 miles (28 km) was at the center of Hurricane Larry. The eye was surround be a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Larry. Storms near the core generated upper level divergence that pumped mass away from the hurricane in all directions. The removal of mass was causing the surface pressure to decrease.

The circulation around Hurricane Larry was becoming more symmetrical. Winds to hurricane force extended out 35 miles (55 km) from the center of Larry. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Larry was 20.6. The Hurricane Size Index (HSI) was 12.5 and the Hurricane Wind Intensity Size Index (HWISI) was 33.1.

Hurricane Larry will move through an environment favorable for intensification during the next 36 hours. Larry will move over water where the Sea Surface Temperature is near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Larry will continue to intensify during the next 36 hours. Larry is likely to strengthen to Category 4 on the Saffir-Simpson Scale during the weekend.

Hurricane Larry will move around the southern side of a subtropical high pressure system over the Atlantic Ocean during the next 36 hours. The high will steer Larry toward the west-northwest during that time period. On its anticipated track Hurricane Larry will move in the general direction of Bermuda.