Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1212 UTC 24 March 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
Forecast for: KNHK (PATUXENT RIVER , MD, US)
Text: TAF KNHK 2407/2507 18006KT 9999 FEW250 QNH3048INS
Forecast period: 0700 to 1200 UTC 24 March 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)
Clouds: few clouds at 25000 feet AGL
Weather: no significant weather forecast for this period
Text: BECMG 2412/2414 19011G18KT 9999 SCT070 BKN250 QNH3035INS
Forecast period: 1200 to 2000 UTC 24 March 2017
Forecast type: BECOMING: Conditions expected to become as follows by 1400 UTC 24 March 2017
Winds: from the S (190 degrees) at 13 MPH (11 knots; 5.7 m/s)
gusting to 21 MPH (18 knots; 9.4 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 25000 feet AGL
Clouds: scattered clouds at 7000 feet AGL
broken clouds at 25000 feet AGL
Weather: no significant weather forecast for this period
Text: BECMG 2420/2422 18008KT 9999 SCT035 BKN060 QNH3026INS AUTOMATED SENSOR METWATCH 2407 TIL 2408 T02/2409Z T17/2421Z FN00180
Forecast period: 2000 UTC 24 March 2017 to 0700 UTC 25 March 2017
Forecast type: BECOMING: Conditions expected to become as follows by 2200 UTC 24 March 2017
Winds: from the S (180 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: 6000 feet AGL
Clouds: scattered clouds at 3500 feet AGL
broken clouds at 6000 feet AGL
Weather: no significant weather forecast for this period