FVXX20 KNES 302355 VA ADVISORY DTG: 20181230/2355Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/1242 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 30/2330Z OBS VA CLD: SFC/FL160 N0011 W07757 - S0005 W07739 - S0006 W07740 - N0001 W07803 - N0011 W07757 MOV NW 5-10KT FCST VA CLD +6HR: 31/0530Z SFC/FL160 N0018 W07802 - S0005 W07739 - S0006 W07740 - N0003 W07810 - N0018 W07802 FCST VA CLD +12HR: 31/1130Z SFC/FL160 NO ASH EXP FCST VA CLD +18HR: 31/1730Z NO ASH EXP RMK: VA EM OBS IN WEBCAM MOV NW FROM SUMMIT FL160. NWP MODEL GUIDANCE AGREES WITH TRANSPORT. LTLCG TO FCST T+12 HRS. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20181231/0600Z