Winds Aloft Forecast Question

[Funkeruski]

I've got questions on the report below. Where it says "Valid 010600Z," does this mean that it is not valid until 0600Z or is it valid until 0600Z? If it's not valid until 0600Z, then why does the "for use" indicate 0500 which would have been an hour before the valid time? If it's valid until 0600Z, then why is it "for use" until 0900Z, three hours after it expired? Can someone explain this shiyat to me?



DATA BASED ON 010000Z
VALID 010600Z FOR USE 0500-0900Z. TEMPS NEG ABV 24000
FT 3000 6000 9000 12000 18000 24000 30000 34000 39000
MKC 2426 2726-09 2826-14 2930-21 2744-32 2751-41 275550 276050 276547

 

[river_rat]

I've got questions on the report below. Where it says "Valid 010600Z," does this mean that it is not valid until 0600Z or is it valid until 0600Z? If it's not valid until 0600Z, then why does the "for use" indicate 0500 which would have been an hour before the valid time? If it's valid until 0600Z, then why is it "for use" until 0900Z, three hours after it expired? Can someone explain this shiyat to me?



DATA BASED ON 010000Z
VALID 010600Z FOR USE 0500-0900Z. TEMPS NEG ABV 24000
FT 3000 6000 9000 12000 18000 24000 30000 34000 39000
MKC 2426 2726-09 2826-14 2930-21 2744-32 2751-41 275550 276050 276547

It means it is only valid at 0600Z but they want you to use it from 0500-0900.

http://avwxworkshops.com/workshops-titles.php?type=free

Scroll down to "Scott's pet peeve number 3 - Common errors in the FBWinds forecast " and watch that one.

 

[pilotod]

I hear you! The word valid is just wrong in my opinion. They ought to say it was created at some time and is for the period x to y. But my own profession (not aviation) has got it's own weird acronyms and phraseology.