METAR Codes

[your_dreamguy]

KAVX 051251Z AUTO 00000KT 10SM CLR 10/08 A3002 RMK AO2 SLP166 T01000083

Does anyone know what "T01000083" in this METAR stands for?
Also, does anyone know of a web site or reference book that has these METAR and TAF codes identified? I don't mean stuff like RA=Rain, etc., I mean stuff like "T01000083."

Any help is appreciated.

 

[cessna_driver2]

Just looking at some old paperwork I have. It has something to do with temperature. Some sort of coding?

 

[Humty72]

It means the temperature is 10.0 deg and the dewpoint is 8.3 degrees.....

Info for that stuff is in "Aviation Weather Services" one of those "AC- something" books.. cant remember that..

oh yea and i think theres some stuff on it hidden in the depths of the AIM.. a chart of some sort , I don't have it handy.. It details all the coding if i remember correctly.

 

[eddie]

The 0 before the 100 and 083 means + degrees.

If it was -10 outside with a dewpoint of -12.2, the METAR would read T11001122.

 

[KnowledgeSeeker]

At the end of the RMK's section there are a few contractions that follow the same pattern...

T01000083

the zero before the 10.0 and the 08.3 means it's a positive number. If the number before either is a 1, then it would mean the following number is negative (-10.0 C).

If you really want to make your head spin follow this LINK . Then go to the advanced study guide. It will blow your mind how many contractions there can be in the remarks section. A real eye opener since the FAA published decoder is very limited.

 

[KnowledgeSeeker]

sorry eddie, must have been typing at the same time!

 

[eddie]

Wow, that link is cool. I'm sure I would never remember all those codes!

 

[GoingHot]

[/Does anyone know what "T01000083" in this METAR stands for? ]

I'm pretty sure this is the symbol for "Chemtrails"

 

[your_dreamguy]

Followup

They already list the temperature and dew point in the middle of the report,"CLR 10/08 A3002..." does anyone know why they list it again at end with "T010..."?
Thanks!

 

[mar]

I'm just speculating

I don't think the temp/dewpoint break down is very significant when there's a big temp/dewpoint spread.

But if you were watching the trend when the temp/dewpoint were equal you would be able to see which way things were going.

I'll try to make an example and apologize right up front for any confusion.

Temp/Dewpoint = 10/10

Hour 1 T01020098........Temp +10.2 DP +9.8
Hour 2 T01010098........Temp +10.1 DP +9.8
Hour 3 T01000098........Temp +10.0 DP +9.8

See what I'm saying? The breakdown allows you a little more detail into what's actually occuring.

I can't imagine this is too important when the temp/DP spread is more than five degrees.

Good luck.

 

[datafox]

WRONG biatch!

ASOS software was developed when SA code was used and U.S. observations still used degrees F.

The temperature/dewpoint in the remarks section is actually the temperature/dewpoint ASOS measures in degrees F, then it converts it. For example:

KDFW 052256Z 33009KT 10SM OVC007 11/11 A3006 RMK AO2 RAE05 CIG 005V010 SLP175
P0000 T01110106=

Temp 11.1 C or 51.98F (which is 52 F)
Dewpoint 10.6 or 51.08F (which is 51 F)

The only reason the temperature/dewpoint exists in the remarks is because it is the only way to provide temperature data to the nearest degree F. If we just used whole degrees C we wouldn't know the temperature as precise as the F scale allows.

You will never see a temperature remark with temperatures or dewpoints between 10.1 and 10.5 degrees. You will only see 10.0 because that is 50 F, or 10.6 because that is 51 F, etc.

 

[mar]

Golly Thanks for the correction

You make learning FUN!