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A Beginner's Guide To Reading Winter Charts

Su Campu · 2011-11-10 17:52:39

For the newer members on here, it might be a good idea to give a brief guide to what to look for on the charts as we head into wintertime - a time when many boardsies come back to the feeding ground after 8 months wandering the plains. As people jostle for position around the trough (pun intended!), tempers can flare up,…

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#32 26-11-2013 4:40pm
hatrickpatrick

Registered Users Posts: 17,797 ✭✭✭✭

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What does "XXz" (where XX is a number) mean in relation to weather charts? I always assumed it was just a timestamp (so 18z = a model run at 1800 hours) but given the seemingly random times of release over the last few days (For example, the 12z GFS seems to be rolling out now on Meteociel at 15:41) I'm not so sure anymore?

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#33 28-11-2013 3:08pm
Harps

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It is exactly that as far as I know.. 18Z means the input data was taken at 6pm. The model likely takes a while to calculate and I'd assume the data isn't released publicly right away which probably explains the delay

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