TAF Daily

Puzzle #8 was EPKK (Kraków John Paul II International Airport).

TAF EPKK 170530Z 1706/1806 VRB03KT CAVOK BECMG 1710/1713 13010KT TEMPO 1710/1720 SCT050CB PROB30 TEMPO 1714/1720 VRB15G25KT -TSRA BKN050CB BECMG 1720/1723 22003KT TEMPO 1720/1803 VRB15G25KT 4000 TSRA BKN040CB PROB30 TEMPO 1720/1724 VRB20G40KT 1200 +TSRAGR BKN014 BKN020CB TEMPO 1803/1806 1200 BR BKN003

Airport info for EPKK →

How it scored

TAF
Terminal aerodrome forecast
EPKK
Station EPKK
170530Z
Issued on the 17 at 0530 Zulu (UTC)
1706/1806
Valid from the 17 at 0600 Zulu to the 18 at 0600 Zulu
VRB03KT
Wind variable at 3 knots
CAVOK
Ceiling and visibility OK (visibility 10 km+, no cloud below 5,000 ft or below the highest minimum sector altitude, no significant weather)
BECMG 1710/1713
Becoming, gradually over the 17 at 1000 Zulu to the 17 at 1300 Zulu
13010KT
Wind from 130° at 10 knots
TEMPO 1710/1720
Temporarily, the 17 at 1000 Zulu to the 17 at 2000 Zulu
SCT050CB
Scattered clouds at 5,000 ft (cumulonimbus)
PROB30 TEMPO 1714/1720
30% probability of temporary conditions, the 17 at 1400 Zulu to the 17 at 2000 Zulu
VRB15G25KT
Wind variable at 15 knots, gusting 25
-TSRA
Light thunderstorm with rain
BKN050CB
Broken clouds at 5,000 ft (cumulonimbus)
BECMG 1720/1723
Becoming, gradually over the 17 at 2000 Zulu to the 17 at 2300 Zulu
22003KT
Wind from 220° at 3 knots
TEMPO 1720/1803
Temporarily, the 17 at 2000 Zulu to the 18 at 0300 Zulu
VRB15G25KT
Wind variable at 15 knots, gusting 25
4000
Visibility 4,000 meters
TSRA
Thunderstorm with rain
BKN040CB
Broken clouds at 4,000 ft (cumulonimbus)
PROB30 TEMPO 1720/1724
30% probability of temporary conditions, the 17 at 2000 Zulu to the 17 at 2400 Zulu
VRB20G40KT
Wind variable at 20 knots, gusting 40
1200
Visibility 1,200 meters
+TSRAGR
Heavy thunderstorm with rain hail
BKN014
Broken clouds at 1,400 ft
BKN020CB
Broken clouds at 2,000 ft (cumulonimbus)
TEMPO 1803/1806
Temporarily, the 18 at 0300 Zulu to the 18 at 0600 Zulu
1200
Visibility 1,200 meters
BR
Mist
BKN003
Broken clouds at 300 ft

Also on the record

Over what UTC (Zulu) period is this forecast valid?
day 17 at 06:00Z to day 18 at 06:00Z
What is the flight category of the initial (base) forecast period?
VFR
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 1710/1713" indicate?
A gradual change, becoming the new conditions across that window.
What does this forecast say about convective (thunderstorm) weather?
Thunderstorms or cumulonimbus (CB) clouds are explicitly forecast.

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