Header1200x385

× Welcome to the CPL Meteorology question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.

Information in a Metar

  • billo
  • Topic Author

billo created the topic: Information in a Metar

VFR study guide 2.6.8 Item 10 states "RMK RF02/004.0" Decoded means 2mm of rain 10min prior to report and 4mm since 9.00 local time.

How? Where did the times come from and what does RMK stand for??
#1

Please Log in or Create an account to join the conversation.

  • Richard

Richard replied the topic: Re: Information in a Metar

Hi Billo,

The RMK stands for "Remark" and is defined in AIP GEN 2.2 - 40. A remark is simply some additional information relevant to the report.

In this case, the remarks section contains the comment regarding rainfall (RF) which, as you corectly interpreted, means there was 2mm of rain in the last 10 minutes before the report was issued and 4mm since 9am local time at the airport for which the report was issued.

The time of the report is read from the date/time group of the METAR. In the example you stated, the report is a METAR which has been issued for YBBN (Brisbane) and the METAR was issued at 0300Z (0300 UTC or 1300 EST). We now know there was 2 mm of rain since 12:50pm and 4mm since 9am in Brisbane.

Cheers,

Rich
#2

Please Log in or Create an account to join the conversation.

  • billo
  • Topic Author

billo replied the topic: Re: Information in a Metar

Thanks Rick but where do u find 9.00am mentioned??
#3

Please Log in or Create an account to join the conversation.

  • Richard

Richard replied the topic: Re: Information in a Metar

Have a look at AIP GEN 3.5 12.19.1

Cheers,

Rich
#4

Please Log in or Create an account to join the conversation.

Time to create page: 0.127 seconds