Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1013 UTC 31 August 2014)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: KSFO (SAN FRANCISCO , CA, US)
Text: KSFO 310856Z 3109/0112 29015KT P6SM FEW010 SCT200
Forecast period: 0900 to 2100 UTC 31 August 2014
Forecast type: FROM: standard forecast or significant change
Winds: from the WNW (290 degrees) at 17 MPH (15 knots; 7.8 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1000 feet AGL
scattered clouds at 20000 feet AGL
Weather: no significant weather forecast for this period
Text: FM312100 29017G25KT P6SM FEW010 SCT200
Forecast period: 2100 UTC 31 August 2014 to 0400 UTC 01 September 2014
Forecast type: FROM: standard forecast or significant change
Winds: from the WNW (290 degrees) at 20 MPH (17 knots; 8.8 m/s)
gusting to 29 MPH (25 knots; 13.0 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1000 feet AGL
scattered clouds at 20000 feet AGL
Weather: no significant weather forecast for this period
Text: FM010400 29011KT P6SM FEW200
Forecast period: 0400 to 1200 UTC 01 September 2014
Forecast type: FROM: standard forecast or significant change
Winds: from the WNW (290 degrees) at 13 MPH (11 knots; 5.7 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 20000 feet AGL
Weather: no significant weather forecast for this period