Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0549 UTC 25 February 2018)
found at http://aviationweather.gov/adds/tafs/
 
METAR text: EGLL 250520Z AUTO 06007KT 9999 SCT026 M00/M04 Q1026 NOSIG
Conditions at: EGLL (LONDON/HEATHROW , GB) observed 0520 UTC 25 February 2018
Temperature: 0.0°C (32°F)
Dewpoint: -4.0°C (25°F) [RH = 74%]
Pressure (altimeter): 30.30 inches Hg (1026.0 mb)
Winds: from the ENE (60 degrees) at 8 MPH (7 knots; 3.6 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: at least 12,000 feet AGL
Clouds: scattered clouds at 2600 feet AGL
Weather: no significant weather observed at this time

Forecast for: EGLL (LONDON/HEATHROW , GB)
Text: TAF EGLL 250454Z 2506/2612 06010KT 9999 FEW025
Forecast period: 0600 UTC 25 February 2018 to 1200 UTC 26 February 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the ENE (60 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 2500 feet AGL
Weather: no significant weather forecast for this period
Text: PROB30
Forecast period: 0000 to 1000 UTC 26 February 2018
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 1.24 miles (2.00 km)
Ceiling: 1000 feet AGL
Clouds: broken clouds at 1000 feet AGL
Weather: -SHSN  (light snow showers)
Text: TEMPO 2600/2610 2000 -SHSN BKN010
Forecast period: 1000 to 1200 UTC 26 February 2018
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 1.24 miles (2.00 km)
Ceiling: 1000 feet AGL
Clouds: broken clouds at 1000 feet AGL
Weather: -SHSN  (light snow showers)
Text: TEMPO 2610/2612 2000 -SHSN BKN010
Forecast period: 1000 to 1200 UTC 26 February 2018
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Winds: from the ENE (70 degrees) at 17 MPH (15 knots; 7.8 m/s)
gusting to 29 MPH (25 knots; 13.0 m/s)
Visibility: 0.50 miles (0.80 km)
Ceiling: 400 feet AGL
Clouds: broken clouds at 400 feet AGL
Weather: SHSN  (snow showers)