FVXX20 KNES 262254 VA ADVISORY DTG: 20180626/2254Z VAAC: WASHINGTON VOLCANO: NEGRA, SIERRA 353050 PSN: S0049 W09110 AREA: GALAPAGOS SUMMIT ELEV: 4888 FT (1490 M) ADVISORY NR: 2018/002 INFO SOURCE: GOES-EAST. NWP MODELS. HYSPLIT. CIMSS VOLCAT. SEISMIC DETECTION. GEOPHYSICAL INST. ERUPTION DETAILS: VA EMS OBS IN STLT IMAGERY. OBS VA DTG: 26/2230Z OBS VA CLD: SFC/FL350 S0028 W09240 - S0042 W09110 - S0047 W09108 - S0159 W09203 - S0028 W09240 MOV SW 35KT FCST VA CLD +6HR: 27/0430Z SFC/FL350 S0015 W09146 - S0046 W09107 - S0241 W09236 - S0021 W09310 - S0015 W09146 FCST VA CLD +12HR: 27/1030Z SFC/FL350 S0006 W09200 - S0047 W09108 - S0308 W09251 - S0008 W09355 - S0006 W09200 FCST VA CLD +18HR: 27/1630Z SFC/FL350 S0002 W09200 - S0041 W09110 - S0313 W09255 - S0005 W09421 - S0002 W09200 RMK: VA EMS OBS IN STLT IMAGERY MOV SW IN STLT IMAGERY. GEO INST. RPRTS MIX OF ASH AND STEAM. EMS ELEVATION BASED OFF NWP GUIDANCE. WIND DATA SUGGEST CONT MOV SW THROUGH +18. WILL UPDATE AS NEEDED. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20180627/0500Z