At 11 p.m., Hurricane Tammy was still moving west-northwestward, so the anticipated northwestward turn has not yet occurred. A late turn will put us (the Leeward Islands) in the more powerful eastern half of the hurricane, where most of the hurricane winds reside.
The onset window for storm conditions for Antigua and Barbuda is now likely to start between midmorning and midafternoon, notwithstanding the stated increase in forward speed of 9 mph.
Hurricane conditions are likely for a few hours on Saturday evening.
Based on the latest data, all hurricane and storm conditions could be over by Sunday morning (Antigua) bar the continuing rainfall, which could last into Monday, depending on the forward speed of Tamm