Isaac Fighting Wind Shear
Published 13th September 2018, 8:21pm
At 5 PM, the centre of Tropical Storm Isaac was located near latitude 14.9 North, longitude 63.2 West. Isaac is moving west near 16 mph with maximum sustained winds of 40 mph. A westward track with a slower forward motion is forecast to continue for the next few days.
The storm continues to battle strong wind shear and dry air is also entering the system so it is now poorly organized. Continued gradual weakening is forecast over the next two days as Isaac moves through the Caribbean Sea. Isaac is now expected to be downgraded to a Tropical Depression on Friday afternoon (September 14th).
Conditions become more favourable for TS Isaac on the weekend, with less shear and more moisture in the atmosphere but it is unclear whether it will be able to recover in time to pose a wind threat to the Cayman Islands. The models continue to show significant divergence in track and intensity and residents are asked to continue to monitor the progress of this storm as it tracks westward moving closer to the Cayman Islands.
Tropical-storm-force winds currently extend outward up to 105 miles (260 km) from the centre. The estimated minimum central pressure is 1006 mb (29.71 inches).