Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1601 UTC 21 September 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: KNHK (PATUXENT RIVER , MD, US)
Text: TAF KNHK 2115/2215 35007KT 9999 FEW140 QNH2996INS
Forecast period: 1500 UTC 21 September 2017 to 0300 UTC 22 September 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the N (350 degrees) at 8 MPH (7 knots; 3.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 14000 feet AGL
Weather: no significant weather forecast for this period
Text: BECMG 2203/2205 VRB05KT 9999 SKC QNH2998INS
Forecast period: 0300 to 0900 UTC 22 September 2017
Forecast type: BECOMING: Conditions expected to become as follows by 0500 UTC 22 September 2017
Winds: variable direction winds at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: BECMG 2209/2211 30006KT 9999 SCT260 QNH2997INS T29/2120Z T19/2210Z FN20002
Forecast period: 0900 to 1500 UTC 22 September 2017
Forecast type: BECOMING: Conditions expected to become as follows by 1100 UTC 22 September 2017
Winds: from the WNW (300 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: scattered clouds at 26000 feet AGL
Weather: no significant weather forecast for this period