3
$\begingroup$

New FAA Notam site marks certain notams as Snowtam and provides Runway Condition. I can decode E) part using FAA Runway Condition. But how can I decode the Q section. Is there a comprehensive source for decoding Notams?

FAA publishes same notam in 2 different formats. I am interested in decoding ICAO Format.

ICAO FORMAT:

12/057 NOTAMN  Q) ZBW/QMRXX/IV/NBO/A/000/999/4221N07100W005  
  A) KBOS  B) 1912310152  C) 2001010152   
  E) 09 FICON 5/5/5 100 PCT WET  OBS AT 1912310152.

DOMESTIC FORMAT:

!BOS 12/057 BOS RWY 09 FICON 5/5/5 100 PCT WET OBS AT 1912310152. 1912310152-2001010152
$\endgroup$
2
  • $\begingroup$ ICAO Annex 15 $\endgroup$ – Ron Beyer Dec 31 '19 at 5:53
  • 1
    $\begingroup$ This is FAA's runway condition format, which is different than the one used in Europe i assume. So ICAO Annex 15 does not seem to fit into this. $\endgroup$ – chickens Dec 31 '19 at 13:32
4
$\begingroup$

So, a SNOWTAM actually has a different format, and your example is just a standard NOTAM in ICAO format.

12/057 NOTAMN  Q) ZBW/QMRXX/IV/NBO/A/000/999/4221N07100W005     
  A) KBOS  B) 1912310152  C) 2001010152      
  E) 09 FICON 5/5/5 100 PCT WET OBS AT 1912310152.

This decodes into the following:

Series and number:        12/057
Nature of the NOTAM:      New (N in the NOTAMN)

Q) Qualifier line:  
   FIR:                   Boston FIR (ZBW)
   NOTAM Code:            Starts with Q and the following four letters:
                          Subject: Runway (MR)  
                          Condition: Not Specified / Plain Language (XX)  
   Traffic:               NOTAM issued for IFR (I) flights and VFR flights (V)  
   Purpose:               NOTAM selected for immediate attention of flight crew members (N), 
                          for PIB entry (B), and concerning flight operations (O)  
   Scope:                 Aerodrome (A)  
   Limits:                FL 000 to FL 999 (000/999)  
   Geographical location: 42°21' N 071° 100' W (4221N07100W)
                          Operation radius of the NOTAM: 5 NM (005)  

A) Aerodrome:             Boston Logan (KBOS)  
B) From:                  01:52 UTC 31 December 2019 (191231 0152)  
C) Until:                 01:52 UTC 01 January 2020 (200101 0152)  
E) Text of the NOTAM:     Runway 09 Field Condition
                          Braking action 5/5/5 (good for each third of the runway), 
                          Runway is 100% wet
                          Observed at 0152 UTC on 31 December 2019

We could dig into the ICAO documents to find the official guidance, but different countries implement it differently sometimes anyway. Here's a good document that I found which breaks down the different codes.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.