TAF Daily
Puzzle #112 was EGLL (London Heathrow Airport).
TAF EGLL 282254Z 2900/3006 23004KT 9999 BKN045 PROB30 2900/2902 7000 TEMPO 2902/2910 4000 BR PROB30 2904/2908 0500 FG BKN001 BECMG 2920/2923 6000 TEMPO 2923/3006 3000 BR PROB40 3001/3006 1400 MIFG PROB30 3003/3006 0400 FG BKN001
How it scored
- TAF
- Terminal aerodrome forecast
- EGLL
- Station EGLL
- 282254Z
- Issued on the 28 at 2254 Zulu (UTC)
- 2900/3006
- Valid from the 29 at 0000 Zulu to the 30 at 0600 Zulu
- 23004KT
- Wind from 230° at 4 knots
- 9999
- Visibility 10 km or more
- BKN045
- Broken clouds at 4,500 ft
- PROB30 2900/2902
- 30% probability of temporary conditions, the 29 at 0000 Zulu to the 29 at 0200 Zulu
- 7000
- Visibility 7,000 meters
- TEMPO 2902/2910
- Temporarily, the 29 at 0200 Zulu to the 29 at 1000 Zulu
- 4000
- Visibility 4,000 meters
- BR
- Mist
- PROB30 2904/2908
- 30% probability of temporary conditions, the 29 at 0400 Zulu to the 29 at 0800 Zulu
- 0500
- Visibility 500 meters
- FG
- Fog
- BKN001
- Broken clouds at 100 ft
- BECMG 2920/2923
- Becoming, gradually over the 29 at 2000 Zulu to the 29 at 2300 Zulu
- 6000
- Visibility 6,000 meters
- TEMPO 2923/3006
- Temporarily, the 29 at 2300 Zulu to the 30 at 0600 Zulu
- 3000
- Visibility 3,000 meters
- BR
- Mist
- PROB40 3001/3006
- 40% probability of temporary conditions, the 30 at 0100 Zulu to the 30 at 0600 Zulu
- 1400
- Visibility 1,400 meters
- MIFG
- Shallow fog
- PROB30 3003/3006
- 30% probability of temporary conditions, the 30 at 0300 Zulu to the 30 at 0600 Zulu
- 0400
- Visibility 400 meters
- FG
- Fog
- BKN001
- Broken clouds at 100 ft
Also on the record
- Over what UTC (Zulu) period is this forecast valid?
- day 29 at 00:00Z to day 30 at 06:00Z
- What is the flight category of the initial (base) forecast period?
- VFR
- Across the whole forecast, how does the ceiling change?
- The ceiling stays about the same throughout.
- Across the whole forecast, what is the worst (most restrictive) flight category at any point?
- LIFR
- In this forecast, what does the group beginning "BECMG 2920/2923" indicate?
- A gradual change, becoming the new conditions across that window.