Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0315 UTC 21 September 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: KSFO (SAN FRANCISCO , CA, US)
Text: KSFO 210239Z 2103/2206 26014G18KT P6SM FEW007 SCT013 BKN100
Forecast period: 0300 to 0600 UTC 21 September 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (260 degrees) at 16 MPH (14 knots; 7.3 m/s)
gusting to 21 MPH (18 knots; 9.4 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 10000 feet AGL
Clouds: few clouds at 700 feet AGL
scattered clouds at 1300 feet AGL
broken clouds at 10000 feet AGL
Weather: no significant weather forecast for this period
Text: FM210600 26014KT P6SM FEW007 SCT015
Forecast period: 0600 to 2000 UTC 21 September 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (260 degrees) at 16 MPH (14 knots; 7.3 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 700 feet AGL
scattered clouds at 1500 feet AGL
Weather: no significant weather forecast for this period
Text: FM212000 28018G25KT P6SM FEW015
Forecast period: 2000 UTC 21 September 2017 to 0300 UTC 22 September 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (280 degrees) at 21 MPH (18 knots; 9.4 m/s)
gusting to 29 MPH (25 knots; 13.0 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1500 feet AGL
Weather: no significant weather forecast for this period
Text: FM220300 26015KT P6SM FEW015
Forecast period: 0300 to 0600 UTC 22 September 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (260 degrees) at 17 MPH (15 knots; 7.8 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1500 feet AGL
Weather: no significant weather forecast for this period