Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1937 UTC 16 January 2018)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: KIAD 161852Z 00000KT 10SM FEW040 BKN130 BKN250 03/M06 A3038 RMK AO2 SLP290 T00281056
Conditions at: KIAD (WASH DC/DULLES , VA, US) observed 1852 UTC 16 January 2018
Temperature: 2.8°C (37°F)
Dewpoint: -5.6°C (22°F) [RH = 54%]
Pressure (altimeter): 30.38 inches Hg (1028.9 mb)
[Sea-level pressure: 1029.0 mb]
Winds: calm
Visibility: 10 or more miles (16+ km)
Ceiling: 13000 feet AGL
Clouds: few clouds at 4000 feet AGL
broken clouds at 13000 feet AGL
broken clouds at 25000 feet AGL
Weather: no significant weather observed at this time

Forecast for: KIAD (WASH DC/DULLES , VA, US)
Text: KIAD 161720Z 1618/1724 VRB03KT P6SM BKN070
Forecast period: 1800 UTC 16 January 2018 to 0300 UTC 17 January 2018
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)
Ceiling: 7000 feet AGL
Clouds: broken clouds at 7000 feet AGL
Weather: no significant weather forecast for this period
Text: FM170300 VRB03KT 5SM -SN OVC040
Forecast period: 0300 to 0600 UTC 17 January 2018
Forecast type: FROM: standard forecast or significant change
Winds: variable direction winds at 3 MPH (3 knots; 1.6 m/s)
Visibility: 5 miles (8 km)
Ceiling: 4000 feet AGL
Clouds: overcast cloud deck at 4000 feet AGL
Weather: -SN  (light snow)
Text: FM170600 34005KT 2SM -SN SCT008 BKN015
Forecast period: 0600 to 1200 UTC 17 January 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the NNW (340 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 2.00 miles (3.22 km)
Ceiling: 1500 feet AGL
Clouds: scattered clouds at 800 feet AGL
broken clouds at 1500 feet AGL
Weather: -SN  (light snow)
Text: FM171200 33012KT P6SM OVC035
Forecast period: 1200 to 1700 UTC 17 January 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the NNW (330 degrees) at 14 MPH (12 knots; 6.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 3500 feet AGL
Clouds: overcast cloud deck at 3500 feet AGL
Weather: no significant weather forecast for this period
Text: FM171700 32014G21KT P6SM SCT150
Forecast period: 1700 UTC 17 January 2018 to 0000 UTC 18 January 2018
Forecast type: FROM: standard forecast or significant change
Winds: from the NW (320 degrees) at 16 MPH (14 knots; 7.3 m/s)
gusting to 24 MPH (21 knots; 10.9 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 15000 feet AGL
Weather: no significant weather forecast for this period