EXAMPLE OF SIGMET FOR SEVERE TURBULENCE
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YUCC SIGMET U05 VALID 221215/221600 YUDO— YUCC AMSWELL FIR SEV TURB OBS AT 1210Z
N2020 W07005 FL250 MOV E 20KT WKN FCST 1600Z S OF N2020 E OF W06950 Meaning: 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 22nd 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. * Fictitious
locations |
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