GMGuidance material
GM1 to Appendix 5 ‘Template for SIGMET and AIRMET’
SIGMET AND AIRMET — EXAMPLES OF ELEMENTS Non-exhaustive examples of the different elements used in the formulation of SIGMET and AIRMET are provided below.
| SIGMET and AIRMET — examples of elements Note 1: Consult the ‘Template for SIGMET and AIRMET’ (Appendix 5 to Annex V (Part-MET) to Regulation (EU) 2017/373) to identify the mandatory (M), the conditional (C) or the optional (O) elements. Note 2: The ranges and resolutions for the numerical elements included in SIGMET and AIRMET are provided in Appendix 8 to Annex V (Part-MET) to Regulation (EU) 2017/373. Note 3: The row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the SIGMET and AIRMET. They do not correlate with the ‘Ref.’ column in the ‘Template for SIGMET and AIRMET’ of Appendix 5 to Annex V (Part-MET) to Regulation (EU) 2017/373. Refer to the ‘Element’ column when cross-referencing. | |||
|---|---|---|---|
| Ref. | Element | SIGMET examples | AIRMET examples |
| 1 | ICAO location indicator of FIR/CTA | YUCC YUDD | |
| 2 | Identification | SIGMET U05 SIGMET I12 | AIRMET 2 AIRMET 19 AIRMET B19 |
| 3 | Validity period | VALID 010000/010400 VALID 221215/221600 VALID 101520/101800 VALID 251600/252200 VALID 152000/160000 VALID 192300/200300 | |
| 4 | ICAO location indicator of MWO | YUDO– YUSO– | |
| 5 | Name of the FIR/CTA | YUCC AMSWELL FIR YUDD SHANLON FIR/UIR UIR FIR/UIR YUDD SHANLON CTA | YUCC AMSWELL FIR/2 YUDD SHANLON FIR |
| 6 | IF THE SIGMET IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TABLE. | ||
| 7 | Status indicator | TEST EXER | TEST EXER |
| 8 | Phenomenon | OBSC TS OBSC TSGR EMBD TS EMBD TSGR FRQ TS FRQ TSGR SQL TS SQL TSGR TC GLORIA PSN N10 W060 CB TC NN PSN S2030 E06030 CB SEV TURB SEV ICE SEV ICE (FZRA) SEV MTW HVY DS HVY SS VA ERUPTION MT ASHVAL PSN S15 E073 VA CLD RDOACT CLD | SFC WIND 310/40KT SFC VIS 1500M (BR) ISOL TS ISOL TSGR OCNL TS OCNL TSGR MT OBSC BKN CLD 400/3000FT BKN CLD 1000/5000FT BKN CLD SFC/ABV10000FT OVC CLD 900/ABV10000FT OVC CLD 1000/5000FT OVC CLD SFC/ABV10000FT ISOL CB OCNL CB FRQ CB ISOL TCU OCNL TCU FRQ TCU MOD TURB MOD ICE MOD MTW |
| 9 | Observed or forecast phenomenon | OBS OBS AT 1210Z FCST FCST AT 1815Z | |
| 10 | Location | N2020 W07005 N48 E010 S60 W160 S0530 E16530 N OF N50 S OF N5430 N OF S10 S OF S4530 W OF W155 E OF W45 W OF E15540 E OF E09015 N OF N1515 AND W OF E13530 S OF N45 AND N OF N40 N OF LINE S2520 W11510 – S2520 W12010 SW OF LINE N50 W005 – N60 W020 SW OF LINE N50 W020 – N45 E010 AND NE OF LINE N45 W020 – N40 E010 WI N6030 E02550 – N6055 E02500 – N6050 E02630 – N6030 E02550 ENTIRE FIR ENTIRE UIR ENTIRE FIR/UIR ENTIRE CTA WI 400KM OF TC CENTRE WI 250NM OF TC CENTRE WI 30KM OF N6030 E02550 | |
| 11 | Level | SFC/FL070 FL180 FL050/080 TOP FL390 ABV FL250 TOP ABV FL100 TOP FL500 TOP ABV FL500 TOP BLW FL450 SFC/10000FT 8000FT 6000/12000FT ABV 7000FT TOP ABV 9000FT TOP ABV 10000FT 10000FT/FL250 3000M SFC/3000M 2000/3000M 2000M/FL150 | |
| 12 | Movement or expected movement | MOV SE MOV NNW MOV E 20KT MOV WSW 20KT (MOV E 40KMH) STNR | |
| 13 | Changes in intensity | INTSF WKN NC | |
| 14 | Forecast time | FCST AT 2200Z | — |
| 15 | TC forecast position | TC CENTRE PSN N1030 E16015 TC CENTRE PSN N1015 E15030 CB | — |
| 16 | Forecast position | N30 W170 N OF N30 S OF S50 AND W OF E170 S OF N46 AND N OF N39 NE OF LINE N35 W020 – N45 W040 SW OF LINE N48 W020 – N43 E010 AND NE OF LINE N43 W020 – N38 E010 WI N20 W090 – N05 W090 – N10 W100 – N20 W100 – N20 W090 ENTIRE FIR ENTIRE UIR ENTIRE FIR/UIR ENTIRE CTA NO VA EXP WI 30KM OF N6030 E02550 WI 150NM OF TC CENTRE | — |
| 17 | Repetition of elements | AND | — |
| OR | |||
| 18 | Cancellation of SIGMET/ AIRMET | CNL SIGMET B04 101200/101600 CNL SIGMET A07 251030/251430 VA MOV TO YUDO FIR | CNL AIRMET 5 151520/151800 |
GM — Regulation (EU) 2017/373 · ED Decision 2022/004/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025