Aviation Digital Data Service (ADDS)

Output produced by METARs form (1338 UTC 20 August 2017)
found at http://www.aviationweather.gov/adds/metars/
 
Forecast for: KSFO (SAN FRANCISCO , CA, US)
Text: KSFO 201158Z 2012/2118 22008KT P6SM FEW010 BKN015
Forecast period: 1200 to 1800 UTC 20 August 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the SW (220 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 1500 feet AGL
Clouds: few clouds at 1000 feet AGL
broken clouds at 1500 feet AGL
Weather: no significant weather forecast for this period
Text: TEMPO 2012/2014 SCT015
Forecast period: 1200 to 1400 UTC 20 August 2017
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Clouds: scattered clouds at 1500 feet AGL
Weather: no significant weather forecast for this period
Text: FM201800 09005KT P6SM FEW012
Forecast period: 1800 to 2100 UTC 20 August 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the E (90 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1200 feet AGL
Weather: no significant weather forecast for this period
Text: FM202100 28010KT P6SM FEW012 SCT250
Forecast period: 2100 UTC 20 August 2017 to 0600 UTC 21 August 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (280 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 1200 feet AGL
scattered clouds at 25000 feet AGL
Weather: no significant weather forecast for this period
Text: FM210600 28008KT P6SM BKN015
Forecast period: 0600 to 1800 UTC 21 August 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the W (280 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 1500 feet AGL
Clouds: broken clouds at 1500 feet AGL
Weather: no significant weather forecast for this period