WCCO31 SKBO 180603
SIGMET SKED SIGMET A1 VALID 180540/181100 SKBO-
SKED BOGOTA FIR VA ERUPTION MT VOLCAN NEVADO DEL RUIZ PSN N0453
W07519 VA CLD OBS AT 0430Z SFC/FL220 N0503 W07550 - N0455 W07519 -
N0452 W07551 - N0503 W07550 MOV W 10KT=