Aviation Digital Data Service (ADDS)

Output produced by METARs form (2035 UTC 20 August 2019)
found at http://www.aviationweather.gov/metar/data/
 
Forecast for: MGGT (GUATEMALA/LA AU , GT)
Text: TAF MGGT 2018/2118 04008KT 9999 SCT018 SCT080 TX26/2020Z TN16/2112Z
Forecast period: 1800 UTC 20 August 2019 to 0000 UTC 21 August 2019
Forecast type: FROM: standard forecast or significant change
Winds: from the NE (40 degrees) at 9 MPH (8 knots; 4.1 m/s)
Visibility: 6 or more miles 10+ km)
Ceiling: at least 12,000 feet AGL
Clouds: scattered clouds at 1800 feet AGL
scattered clouds at 8000 feet AGL
Weather: no significant weather forecast for this period
Text: PROB40 2020/2103 18008KT 7000 TSRA FEW025CB
Forecast period: 2000 UTC 20 August 2019 to 0300 UTC 21 August 2019
Forecast type: PROBABLE: 40 percent likelihood of the following during this time
Winds: from the S (180 degrees) at 9 MPH (8 knots; 4.1 m/s)
Visibility: 4 miles (7 km)
Ceiling: at least 12,000 feet AGL
Clouds: few clouds at 2500 feet AGL
Weather: TSRA  (rain associated with thunderstorm(s))
Text: BECMG 2100/2102 VRB03KT BKN012
Forecast period: 0000 to 1400 UTC 21 August 2019
Forecast type: BECOMING: Conditions expected to become as follows by 0200 UTC 21 August 2019
Winds: variable direction winds at 3 MPH (3 knots; 1.5 m/s)
Visibility: 6 or more miles 10+ km)
Ceiling: 1200 feet AGL
Clouds: broken clouds at 1200 feet AGL
Weather: no significant weather forecast for this period
Text: TEMPO 2103/2109 8000 RADZ BKN010
Forecast period: 0300 to 0900 UTC 21 August 2019
Forecast type: TEMPORARY: The following changes expected for less than half the time period
Visibility: 5 miles (8 km)
Ceiling: 1000 feet AGL
Clouds: broken clouds at 1000 feet AGL
Weather: RA DZ  (moderate rain, moderate drizzle)
Text: BECMG 2114/2116 SCT018
Forecast period: 1400 to 1800 UTC 21 August 2019
Forecast type: BECOMING: Conditions expected to become as follows by 1600 UTC 21 August 2019
Winds: variable direction winds at 3 MPH (3 knots; 1.5 m/s)
Visibility: 6 or more miles 10+ km)
Ceiling: at least 12,000 feet AGL
Clouds: scattered clouds at 1800 feet AGL
Weather: no significant weather forecast for this period