Tobago airport continues to report very light NE winds. I'm not sure what station on Tobago is reporting any SW winds, but it's not at the official observation point.
NCAR-RAP Real-Time Weather Data
Output produced by METARs form (18 July 2017 20:27 UTC)
found at
http://weather.rap.ucar.edu/surface/ TTCP 182000Z 05005KT 9999 -RA VCSH FEW016 27/24 Q1012 NSOIG RMK VCSH NE
TTCP 181900Z 06005KT 9999 VCSH FEW016 27/24 Q1013 NOSIG RMK VCSH NE
TTCP 181800Z 07005KT 9999 -RA VCSH FEW016 29/24 Q1014 NOSIG RMK VCSH N
TTCP 181700Z 12008KT 9999 VCSH FEW018 30/23 Q1014 NOSIG RMK VCSH NE
Here's the translated version of the last 2 obs from the Tobago airport:
NCAR-RAP Real-Time Weather Data
Output produced by METARs form (18 July 2017 20:29 UTC)
found at
http://weather.rap.ucar.edu/surface/ Conditions at: TTCP observed 18 July 2017 20:00 UTC
Temperature: 27.0°C (81°F)
Dewpoint: 24.0°C (75°F) [RH = 84%]
Pressure (altimeter): 29.88 inches Hg (1012.0 mb)
Winds: from the NE (50 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: at least 12,000 feet AGL
Clouds: few clouds at 1600 feet AGL
Present Weather: VCSH -RA (showers in vicinity, light rain)
TTCP 182000Z 05005KT 9999 -RA VCSH FEW016 27/24 Q1012 NSOIG RMK VCSH NE
Conditions at: TTCP observed 18 July 2017 19:00 UTC
Temperature: 27.0°C (81°F)
Dewpoint: 24.0°C (75°F) [RH = 84%]
Pressure (altimeter): 29.91 inches Hg (1013.0 mb)
Winds: from the ENE (60 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: at least 12,000 feet AGL
Clouds: few clouds at 1600 feet AGL
Present Weather: VCSH (showers in vicinity)
TTCP 181900Z 06005KT 9999 VCSH FEW016 27/24 Q1013 NOSIG RMK VCSH NE