Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1416 UTC 16 July 2018)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: KSEA 161353Z 31003KT 10SM FEW200 19/09 A3003 RMK AO2 SLP172 T01890094
Conditions at: KSEA (SEATTLE/METRO , WA, US) observed 1353 UTC 16 July 2018
Temperature: 18.9°C (66°F)
Dewpoint: 9.4°C (49°F) [RH = 54%]
Pressure (altimeter): 30.03 inches Hg (1017.0 mb)
[Sea-level pressure: 1017.2 mb]
Winds: from the NW (310 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: few clouds at 20000 feet AGL
Weather: no significant weather observed at this time

Forecast for: KSEA (SEATTLE/METRO , WA, US)
Text: KSEA 161125Z 1612/1718 02006KT P6SM SKC
Forecast period: 1200 to 1800 UTC 16 July 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the NNE (20 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM161800 32009KT P6SM SKC
Forecast period: 1800 UTC 16 July 2018 to 0900 UTC 17 July 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the NW (320 degrees) at 10 MPH (9 knots; 4.7 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM170900 22004KT P6SM SKC
Forecast period: 0900 to 1800 UTC 17 July 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the SW (220 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period