StormCarib has the following with regard to TD 13 for SXM "The approximate Closest Point of Approach (CPA) is located near 18.6N, 63.0W or about 37.8 miles (60.9 km) from your location. The estimated time of when the center of the storm will be at that location is in about 16 hours and 19 minutes from now (Saturday, August 22 at 1:24AM AST)."