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