FVXX23 KNES 010437 VA ADVISORY DTG: 20210801/0437Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/089 INFO SOURCE: GOES-16. ERUPTION DETAILS: VA NOT OBS IN SAT. OBS VA DTG: 01/0410Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 01/1000Z NO VA EXP FCST VA CLD +12HR: 01/1600Z NO VA EXP FCST VA CLD +18HR: 01/2200Z NO VA EXP RMK: VA NOT DETECTED IN SAT IMAGERY. NO RPTS OF VA EMS RECEIVED SINCE PREV ADVISORY. ...CLARK NXT ADVISORY: NO FURTHER ADVISORIES