Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0453 UTC 30 March 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: EFHK 300450Z 28006KT CAVOK M05/M09 Q1021 NOSIG
Conditions at: EFHK (HELSINKI/VANTAA , FI) observed 0450 UTC 30 March 2017
Temperature: -5.0°C (23°F)
Dewpoint: -9.0°C (16°F) [RH = 73%]
Pressure (altimeter): 30.15 inches Hg (1021.0 mb)
Winds: from the W (280 degrees) at 7 MPH (6 knots; 3.1 m/s)
Visibility: 6 or more miles (10+ km)
Ceiling: ceiling and visibility are OK
Clouds: unknown
Weather: no significant weather observed at this time

Forecast for: EFHK (HELSINKI/VANTAA , FI)
Text: TAF EFHK 300223Z 3003/3103 32008KT CAVOK
Forecast period: 0300 to 0700 UTC 30 March 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: not forecast
Weather: NSW  (no significant weather)
Text: BECMG 3007/3009 26010KT
Forecast period: 0700 to 1800 UTC 30 March 2017
Forecast type: BECOMING: Conditions expected to become as follows by 0900 UTC 30 March 2017
Winds: from the W (260 degrees) at 12 MPH (10 knots; 5.2 m/s)
Visibility: 6 or more miles (10+ km)
Weather: NSW  (no significant weather)
Text: TEMPO 3010/3013 27010G20KT
Forecast period: 1000 to 1300 UTC 30 March 2017
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Winds: from the W (270 degrees) at 12 MPH (10 knots; 5.2 m/s)
gusting to 23 MPH (20 knots; 10.4 m/s)
Weather: no significant weather forecast for this period
Text: BECMG 3018/3020 17008KT
Forecast period: 1800 to 2200 UTC 30 March 2017
Forecast type: BECOMING: Conditions expected to become as follows by 2000 UTC 30 March 2017
Winds: from the S (170 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 6 or more miles (10+ km)
Weather: NSW  (no significant weather)
Text: BECMG 3022/3024 4000 -SN BKN008
Forecast period: 2200 UTC 30 March 2017 to 0300 UTC 31 March 2017
Forecast type: BECOMING: Conditions expected to become as follows by 0000 UTC 31 March 2017
Winds: from the S (170 degrees) at 9 MPH (8 knots; 4.2 m/s)
Visibility: 2.49 miles (4.01 km)
Ceiling: 800 feet AGL
Clouds: broken clouds at 800 feet AGL
Weather: -SN  (light snow)
Text: TEMPO 3100/3103 1200 SN
Forecast period: 0000 to 0300 UTC 31 March 2017
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 0.75 miles (1.21 km)
Weather: SN  (snow)