Tropical Storm Kate Intensifies and Moves Away from the Bahamas

Tropical Depression 12 intensified Monday into Tropical Storm Kate.  Kate continued to intensify on Monday night as it started to move away from the Bahamas.  At 10:00 p.m. EST on Monday the center of Tropical Storm Kate was located at latitude 27.2°N and longitude 76.0°W which put it about 175 miles (280 km) north-northeast of the Northwestern Bahamas.  Kate was moving toward the north at 16 m.p.h. (26 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 1005 mb.

Kate is more organized this evening and it looks more like a tropical storm.  The is a core of thunderstorms at the center of circulation and several rainbands are wrapping around the northeastern side of the storm.  Kate has a small circulation and tropical storm force winds only extend out about 80 miles (130 km) on the eastern side of it.  The thunderstorms in the core of Kate are generating upper level divergence which is spreading northeast of the center.

Tropical Storm Kate is in an environment that is favorable for further intensification.  It is over water where the Sea Surface Temperature is near 28°C.  The combination of a large trough west of Kate and a smaller upper level high east of it are creating some southerly winds over the top of the circulation.  However, the vertical wind shear is moderate at the current time, and Kate could intensify further.  Kate could reach hurricane intensity in the next 24 to 36 hours.  After that time the trough to the west of Kate will cause increased vertical wind shear.

The upper level trough and ridge are steering Kate toward the north.  As Kate moves farther north, stronger westerly winds will begin to push it toward the northeast.  Since Kate is moving toward the northeast away from the Bahamas, the government there has discontinued all tropical storm warnings.