FVXX25 KNES 202229 VA ADVISORY DTG: 20250420/2229Z VAAC: WASHINGTON VOLCANO: POAS 345040 PSN: N1011 W08413 AREA: COSTA_RICA SUMMIT ELEV: 8848 FT (2697 M) ADVISORY NR: 2025/047 INFO SOURCE: GOES-18. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS IN WEBCAM OBS VA DTG: 20/2200Z OBS VA CLD: SFC/FL100 N1013 W08417 - N1012 W08413 - N1011 W08416 - N1013 W08417 MOV W 15KT FCST VA CLD +6HR: 21/0400Z SFC/FL100 N1013 W08417 - N1012 W08413 - N1011 W08416 - N1013 W08417 FCST VA CLD +12HR: 21/1000Z SFC/FL100 N1013 W08417 - N1012 W08413 - N1011 W08416 - N1013 W08417 FCST VA CLD +18HR: 21/1600Z NO VA EXP RMK: CONT VA EMS OBS IN WEBCAM. VA NOT OBS IN STLT IMAGERY. VA FCST TO MOV W OF SUMMIT THRU T+12HRS BEFORE DISP. VO ACT LOW. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20250421/0430Z