Hurricane Tammy was spinning southeast of Bermuda on Tuesday evening. At 11:00 p.m. EDT on Tuesday the center of Hurricane Tammy was located at latitude 24.9°N and longitude 60.7°W which put it about 570 miles (915 km) southeast of Bermuda. Tammy was moving toward the northeast at 9 m.p.h. (15 km/h). The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h). The minimum surface pressure was 976 mb.

Hurricane Tammy started to intensify again on Tuesday evening. A small circular eye was at the center of Tammy’s circulation. The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Tammy. Storms near the core generated upper level divergence that pumped mass away to the northeast of the hurricane.

Winds to hurricane force extended out 25 miles (40 km) in the eastern side of Hurricane Tammy. Winds to tropical storm force extended out 170 miles (275 km) in the eastern side of Tammy’s circulation. Winds to tropical storm force extended out 90 miles (145 km) in the western half of Hurricane Tammy.

Hurricane Tammy will move through an environment favorable for intensification during the next 24 hours. Tammy will move over water where the Sea Surface Temperatures are near 27°C. It will move under the eastern side of an upper level trough that is east of the U.S. The upper level trough will produce southwesterly winds that will blow toward the top of Tammy’s circulation. Those winds will cause some vertical wind shear, but the wind shear is not likely to be strong enough to prevent intensification. Hurricane Tammy is likely to intensify on Wednesday.

The upper level trough east of the U.S. will steer Hurricane Tammy toward the northeast during the next 24 hours. On its anticipated track, Hurricane Tammy will remain southeast of Bermuda on Wednesday.