Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0348 UTC 29 May 2016)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: EGLL (LONDON/HEATHROW , GB)
Text: TAF EGLL 282256Z 2900/3006 03009KT 9999 SCT030
Forecast period: 0000 UTC 29 May 2016 to 0000 UTC 30 May 2016
Forecast type: FROM: standard forecast or significant change
Winds: from the NNE (30 degrees) at 10 MPH (9 knots; 4.7 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: TEMPO 2900/2909 8000 BKN010
Forecast period: 0000 to 0900 UTC 29 May 2016
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 5 miles (8 km)
Ceiling: 1000 feet AGL
Clouds: broken clouds at 1000 feet AGL
Weather: no significant weather forecast for this period
Text: PROB30
Forecast period: 0300 to 0700 UTC 29 May 2016
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Ceiling: 600 feet AGL
Clouds: broken clouds at 600 feet AGL
Weather: no significant weather forecast for this period
Text: TEMPO 2903/2907 BKN006
Forecast period: 2100 UTC 29 May 2016 to 0000 UTC 30 May 2016
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Ceiling: 800 feet AGL
Clouds: broken clouds at 800 feet AGL
Weather: no significant weather forecast for this period
Text: TEMPO 2921/2924 BKN008
Forecast period: 0000 to 0600 UTC 30 May 2016
Forecast type: BECOMING: Conditions expected to become as follows by 0300 UTC 30 May 2016
Winds: from the NNE (30 degrees) at 10 MPH (9 knots; 4.7 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 600 feet AGL
Clouds: broken clouds at 600 feet AGL
Weather: no significant weather forecast for this period