Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1011 UTC 20 June 2013)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: EGLL (LONDON/HEATHROW , GB)
Text: TAF EGLL 200503Z 2006/2112 08006KT 6000 SCT030
Forecast period: 0600 to 1000 UTC 20 June 2013
Forecast type: FROM: standard forecast or significant change
Winds: from the E (80 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 4 miles (6 km)
Clouds: scattered clouds at 3000 feet AGL
Weather: no significant weather forecast for this period
Text: PROB30
Forecast period: 0600 to 1800 UTC 20 June 2013
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 2.49 miles (4.01 km)
Ceiling: 1200 feet AGL
Clouds: broken clouds at 1200 feet AGL
Weather: +SHRA TSRA  (heavy rain showers, rain associated with thunderstorm(s))
Text: TEMPO 2006/2018 4000 +SHRA TSRA BKN012
Forecast period: 1000 to 2300 UTC 20 June 2013
Forecast type: BECOMING: Conditions expected to become as follows by 1300 UTC 20 June 2013
Winds: from the E (80 degrees) at 7 MPH (6 knots; 3.1 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 2010/2013 9999
Forecast period: 2300 UTC 20 June 2013 to 0900 UTC 21 June 2013
Forecast type: BECOMING: Conditions expected to become as follows by 0200 UTC 21 June 2013
Winds: from the E (80 degrees) at 7 MPH (6 knots; 3.1 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: BECMG 2023/2102 BKN012
Forecast period: 0200 to 0900 UTC 21 June 2013
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 4 miles (6 km)
Ceiling: 800 feet AGL
Clouds: broken clouds at 800 feet AGL
Weather: -RA  (light rain)
Text: TEMPO 2102/2109 6000 -RA BKN008
Forecast period: 0900 to 1200 UTC 21 June 2013
Forecast type: BECOMING: Conditions expected to become as follows by 1200 UTC 21 June 2013
Winds: from the E (80 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 2500 feet AGL
Weather: no significant weather forecast for this period