FVXX21 KNES 251605 VA ADVISORY DTG: 20160725/1605Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2016/153 INFO SOURCE: GOES-EAST. OVSICORI-UNA. ERUPTION DETAILS: VA EMISSION ARND 25/1345Z OBS VA DTG: 25/1415Z OBS VA CLD: SFC/FL200 N1010 W08401 - N1009 W08352 - N1003 W08346 - N1000 W08347 - N1001 W08400 - N1010 W08401 MOV NW 15KT FCST VA CLD +6HR: 25/2030Z SFC/FL200 N1017 W08444 - N1013 W08425 - N1004 W08425 - N1003 W08446 - N1010 W08454 - N1017 W08444 FCST VA CLD +12HR: 26/0230Z SFC/FL200 NO ASH EXP FCST VA CLD +18HR: 26/0830Z NO ASH EXP RMK: VA EMISSION OBS IN STLT AT 1345Z MOVG WNW FM SUMMIT AT 15KTS NEAR FL200. BOUNDARIES DIFFICULT TO DETECT DUE TO WX CLDS. ...RAMIREZ NXT ADVISORY: WILL BE ISSUED BY 20160725/2200Z