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WSRA31 RUKR 212218

UNKL SIGMET 18 VALID 220000/220300 UNKL-
UNKL KRASNOYARSK FIR SEV TURB FCST S OF LINE N5721 E08810 - N5745
E09544 - N6020 E09550 - N5838 E10320 AND NW OF LINE N5132 E08817 -
N5208 E09217 - N5400 E09600 SFC/FL100 MOV NE 20KMH NC=