WVCO31 SKBO 241530 SKED SIGMET 2 VALID 241514/242115 SKBO- SKED BOGOTA FIR VA ERUPTION MT VOLCAN NEVADO DEL RUIZ PSN N0453 W07519 VA CLD OBS AT 1440Z SFC/FL200 N0508 W07538 - N0453 W07519 - N0452 W07519 - N0454 W07543 - N0508 W07538 MOV W 10KT=