GM6 MET.TR.250(a) SIGMET

• ED Decision 2020/008/R found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

GM6 MET.TR.250(a) SIGMET ED Decision 2020/008/R EXAMPLE OF SIGMET FOR SEVERE TURBULENCE <table border="1" cellpadding="0" cellspacing="0" width="100%"><tr><td valign="top" width="100%"><p>YUCC SIGMET U05 VALID 221215/221600 YUDO— </p><p>YUCC AMSWELL FIR SEV TURB OBS AT 1210Z N2020 W07005 FL250 MOV E 20KT WKN FCST 1600Z S OF N2020 E OF W06950</p><p>Meaning:</p><p>The fifth severe turbulence SIGMET issued for the AMSWELL* flight information region (identified by YUCC Amswell area control centre) by the Donlon/International* meteorological watch office (YUDO) since 0001 UTC; the SIGMET is valid from 12.15 UTC to 16.00 UTC on the 22^nd of the month; severe turbulence was observed at 1210 UTC 20 degrees 20 minutes north and 70 degrees 5 minutes west at flight level 250; the turbulence is expected to move eastwards at 20 knots and to strengthen in intensity; at 16.00 UTC, the severe turbulence is forecast to be located south of 20 degrees 20 minutes north and east of 69 degrees 50 minutes west.</p><p>* Fictitious locations</p></td></tr></table> GM6 MET.TR.250(a) SIGMET ED Decision 2020/008/R EXAMPLE OF SIGMET  FOR SEVERE TURBULENCE <table border="1" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" width="100%"> <p>YUCC SIGMET U05 VALID 221215/221600 YUDO— </p> <p>YUCC AMSWELL FIR SEV TURB OBS AT 1210Z N2020 W07005 FL250 MOV E 20KT WKN FCST 1600Z S OF N2020 E OF W06950</p> <p>Meaning:</p> <p>The fifth severe turbulence SIGMET issued for the AMSWELL* flight information region (identified by YUCC Amswell area control centre) by the Donlon/International* meteorological watch office (YUDO) since 0001 UTC; the SIGMET is valid from 12.15 UTC to 16.00 UTC on the 22^nd of the month; severe turbulence was observed at 1210 UTC 20 degrees 20 minutes north and 70 degrees 5 minutes west at flight level 250; the turbulence is expected to move eastwards at 20 knots and to strengthen in intensity; at 16.00 UTC, the severe turbulence is forecast to be located south of 20 degrees 20 minutes north and east of 69 degrees 50 minutes west.</p> <p>* Fictitious locations</p> </td> </tr> </table>