****0000000173****
WSUK31 EGRR 151419

EGTT SIGMET 01 VALID 151420/151820 EGRR-
EGTT LONDON FIR EMBD TS OBS SW OF LINE N5106 W00749 - N5029 W00605 -
N4920 W00524 TOP FL280 MOV NE 20KT NC=