****0000000203**** WSIL31 BICC 301601 BIRD SIGMET U04 VALID 301648/302048 BIRK- BIRD REYKJAVIK CTA SEV TURB OBS AT 1639Z WI N6500 W00500 - N6500 E00000 - N6200 E00000 - N6200 W00500 - N6500 W00500 FL250/350 STNR NC=