Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0957 UTC 23 April 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: KSEA 230953Z 19003KT 10SM SCT050 08/07 A2995 RMK AO2 SLP151 T00830067
Conditions at: KSEA (SEATTLE/METRO , WA, US) observed 0953 UTC 23 April 2017
Temperature: 8.3°C (47°F)
Dewpoint: 6.7°C (44°F) [RH = 90%]
Pressure (altimeter): 29.95 inches Hg (1014.3 mb)
[Sea-level pressure: 1015.1 mb]
Winds: from the S (190 degrees) at 3 MPH (3 knots; 1.6 m/s)
Visibility: 10 or more miles (16+ km)
Ceiling: at least 12,000 feet AGL
Clouds: scattered clouds at 5000 feet AGL
Weather: no significant weather observed at this time

Forecast for: KSEA (SEATTLE/METRO , WA, US)
Text: KSEA 230857Z 2309/2412 18004KT P6SM SCT025 SCT045
Forecast period: 0900 to 1200 UTC 23 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the S (180 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 2500 feet AGL
scattered clouds at 4500 feet AGL
Weather: no significant weather forecast for this period
Text: FM231200 18006KT P6SM VCSH SCT020 BKN030 OVC045
Forecast period: 1200 to 1600 UTC 23 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the S (180 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 3000 feet AGL
Clouds: scattered clouds at 2000 feet AGL
broken clouds at 3000 feet AGL
overcast cloud deck at 4500 feet AGL
Weather: VCSH  (showers in vicinity)
Text: FM231600 20006KT P6SM -RA SCT015 OVC025
Forecast period: 1600 to 1900 UTC 23 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the SSW (200 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 2500 feet AGL
Clouds: scattered clouds at 1500 feet AGL
overcast cloud deck at 2500 feet AGL
Weather: -RA  (light rain)
Text: FM231900 21009KT 6SM -RA BR SCT012 BKN018 OVC025
Forecast period: 1900 UTC 23 April 2017 to 0000 UTC 24 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the SSW (210 degrees) at 10 MPH (9 knots; 4.7 m/s)
Visibility: 6 miles (10 km)
Ceiling: 1800 feet AGL
Clouds: scattered clouds at 1200 feet AGL
broken clouds at 1800 feet AGL
overcast cloud deck at 2500 feet AGL
Weather: -RA BR  (light rain, mist)
Text: FM240000 21012G18KT P6SM -SHRA SCT018 BKN030 OVC045
Forecast period: 0000 to 0900 UTC 24 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the SSW (210 degrees) at 14 MPH (12 knots; 6.2 m/s)
gusting to 21 MPH (18 knots; 9.4 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 3000 feet AGL
Clouds: scattered clouds at 1800 feet AGL
broken clouds at 3000 feet AGL
overcast cloud deck at 4500 feet AGL
Weather: -SHRA  (light rain showers)
Text: FM240900 18006KT P6SM VCSH SCT025 BKN040 OVC060
Forecast period: 0900 to 1200 UTC 24 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the S (180 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 4000 feet AGL
Clouds: scattered clouds at 2500 feet AGL
broken clouds at 4000 feet AGL
overcast cloud deck at 6000 feet AGL
Weather: VCSH  (showers in vicinity)