Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1229 UTC 25 July 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: KIAD 251152Z 31010KT 10SM FEW250 21/14 A3007 RMK AO2 SLP180 T02110139 10239 20189 51018
Conditions at: KIAD (WASH DC/DULLES , VA, US) observed 1152 UTC 25 July 2017
Temperature: 21.1°C (70°F)
Dewpoint: 13.9°C (57°F) [RH = 63%]
Pressure (altimeter): 30.07 inches Hg (1018.4 mb)
[Sea-level pressure: 1018.0 mb]
Winds: from the NW (310 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 10 or more miles (16+ km)
Ceiling: at least 12,000 feet AGL
Clouds: few clouds at 25000 feet AGL
Weather: no significant weather observed at this time

Forecast for: KIAD (WASH DC/DULLES , VA, US)
Text: KIAD 251136Z 2512/2618 32008KT P6SM SKC
Forecast period: 1200 to 1800 UTC 25 July 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the NW (320 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM251800 33010KT P6SM BKN040
Forecast period: 1800 UTC 25 July 2017 to 0000 UTC 26 July 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the NNW (330 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 4000 feet AGL
Clouds: broken clouds at 4000 feet AGL
Weather: no significant weather forecast for this period
Text: FM260000 VRB03KT P6SM SCT040
Forecast period: 0000 to 1100 UTC 26 July 2017
Forecast type: FROM: standard forecast or significant change
Winds: variable direction winds at 3 MPH (3 knots; 1.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 4000 feet AGL
Weather: no significant weather forecast for this period
Text: FM261100 03004KT P6SM BKN050
Forecast period: 1100 to 1400 UTC 26 July 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the NNE (30 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 5000 feet AGL
Clouds: broken clouds at 5000 feet AGL
Weather: no significant weather forecast for this period
Text: FM261400 09005KT P6SM BKN050
Forecast period: 1400 to 1800 UTC 26 July 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the E (90 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 5000 feet AGL
Clouds: broken clouds at 5000 feet AGL
Weather: no significant weather forecast for this period