Aviation Digital Data Service (ADDS)

Output produced by TAFs form (2232 UTC 26 June 2016)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: EGLL (LONDON/HEATHROW , GB)
Text: TAF EGLL 261703Z 2618/2724 28010KT 9999 SCT030
Forecast period: 1800 to 2000 UTC 26 June 2016
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: scattered clouds at 3000 feet AGL
Weather: no significant weather forecast for this period
Text: BECMG 2620/2623 21010KT BKN012
Forecast period: 2000 UTC 26 June 2016 to 0500 UTC 27 June 2016
Forecast type: BECOMING: Conditions expected to become as follows by 2300 UTC 26 June 2016
Winds: from the SSW (210 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 1200 feet AGL
Clouds: broken clouds at 1200 feet AGL
Weather: no significant weather forecast for this period
Text: TEMPO 2620/2704 6000 -RADZ SCT006 BKN008
Forecast period: 2000 UTC 26 June 2016 to 0400 UTC 27 June 2016
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 4 miles (6 km)
Ceiling: 800 feet AGL
Clouds: scattered clouds at 600 feet AGL
broken clouds at 800 feet AGL
Weather: -RA -DZ  (light rain, light drizzle)
Text: BECMG 2705/2708 29010KT SCT030
Forecast period: 0500 UTC 27 June 2016 to 0000 UTC 28 June 2016
Forecast type: BECOMING: Conditions expected to become as follows by 0800 UTC 27 June 2016
Winds: from the WNW (290 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 3000 feet AGL
Weather: no significant weather forecast for this period