Metar in the US

[Thylakoid]

Hi anyone:

I am sure that any US based pilot can give me an answer.

I noticed that in some METAR or TAF reports, a group of letters such as RRR, RRB, or RRD, ect., just aftert the time group.

I couldn't find their definitions anywhere.

Thanks

[weasil]

could you post an example? what source are you using to get your METAR's?

[rwy_hdg]

Haven't seen that before..here's a good decode

http://weather.unisys.com/wxp/Append...ats/METAR.html

[evansb]

RRx (where x=A-X) indicates a delayed forecast.

[Thylakoid]

Thanks everyone.

I saw that on some NOAA site, but couldn't find it anymore.