TAF LSZH 250600Z 2507/2516 00000KT 0100 FG VV001 BECMG 2508/2510 0800 VV002 BECMG 2510/2512 23005KT 2500 BR BKN005 TEMPO 2513/2516 6000 SCT007 =

Period of validity is stated as 07:00 UTC day 25 until 16:00 UTC day 25 (2507/2516).

Initial weather conditions are forecasted to be:

• 00000KT = wind calm
• 0100 = visibility 100 m
• FG = fog
• VV001 = vertical visibility 100 ft

A change of permanent character is expected to occur on day 25 at any time between 08:00 and 10:00 (BECMG 2508/2510). After the change occurs, the following conditions are to be expected:

• 0800 = visibility 800 m
• VV002 = vertical visibility 200 ft

Another change of permanent character is expected to occur later on day 25 at any time between 10:00 and 12:00 (BECMG 2510/2512).

• 23005KT = wind at 230º at 5 kt
• 2500 = visibility 2500 m
• BR = mist
• BKN005 = Broken layer of clouds at 500 ft

Next changes expected are of temporary character (TEMPO 2513/2516) => which means that the listed conditions can occur on day 25 at any time between 13:00 and 16:00 UTC, but are not of permanent character and may occur momentarily, for a max of 1h at each time. Thereafter, the conditions will revert back to how they were previously.

• 6000 = visibility 6000 m
• SCT007 = scattered layer of clouds at 700 ft

=> At 1200 UTC we can expect the conditions described in the second group of permanent character occurring between 10:00 and 12:00 UTC => wind at 230º at 5kt, visibility 2500 m, mist, broken layer of clouds at 500 ft
“Visibility 2,5 kilometres, mist, cloud base 500 feet, wind speed 5 knots”

Note: Cloud Base – The height of the lowest visible part of cloud over an airfield.