Someone had too much time on their hands.
Someone had too much time on their hands.
KHOP 221456Z 17004KT 7SM -RA OVC039 20/20 A3010 RMK AO2A LTG DSNT SW RAB1350E06DZB06E11RAB11E21DZB21E25RAB25E38DZB38E43RAB43 TSB1352E14TSB25E55 SLP191 P0004 60051 T01990199 51027
Wow that’s a long metar but what are the numbers after the specific temp/dew point? After the T numbers.
5 indicates that it is the pressure tendency, 1 indicates it is increasing, then then steady, or increasing then increasing more slowly, and 027 indicates the amount of change in pressure in tenths of hPa. It's not something I (and I assume everybody else) ever actually look at because unless you memorize all of the codes you need something to tell you what they mean and that only slows you down.
It's a little more helpful than most realize. I once witnessed an experienced dispatcher forecast that a snowstorm was going to move out based on pressure rising rapidly. Metar went from 1/8sm to 10sm in about 30mins.I can’t count on one hand how many times I’ve needed to know the pressure tendency.... because I’ve never needed to know the pressure tendency.
Yeah but if he wasn’t EWINS is his own forecast legal...?It's a little more helpful than most realize. I once witnessed an experienced dispatcher forecast that a snowstorm was going to move out based on pressure rising rapidly. Metar went from 1/8sm to 10sm in about 30mins.
The forecast was legal. He was just deciding when best to launch. None of the other dispatchers thought the TAF would improve as dramatically as it was calling for. He talked to the CA and they launched on time based on the pressure rising rapidly. It was like a 90min flight if I recall correctly.Yeah but if he wasn’t EWINS is his own forecast legal...?
:stir:![]()
It's a little more helpful than most realize. I once witnessed an experienced dispatcher forecast that a snowstorm was going to move out based on pressure rising rapidly. Metar went from 1/8sm to 10sm in about 30mins.