FVXX23 KNES 261436 VA ADVISORY DTG: 20180426/1436Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/134 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. VOLCANO WEB CAMERA. OVSICORI-UNA. ERUPTION DETAILS: NEW VA EM. OBS VA DTG: 26/1415Z OBS VA CLD: SFC/FL120 N1011 W08348 - N1001 W08345 - N0959 W08347 - N1002 W08349 - N1007 W08353 - N1011 W08348 MOV NW 5-10KT FCST VA CLD +6HR: 26/2030Z SFC/FL120 N1013 W08347 - N1001 W08344 - N1000 W08347 - N1008 W08352 - N1013 W08347 FCST VA CLD +12HR: 27/0230Z SFC/FL120 NO ASH EXP FCST VA CLD +18HR: 27/0830Z NO ASH EXP RMK: VA EXTD TO 10NM NNW OF SUMMIT. WEB CAM SHOWS EM OF MAINLY GAS WITH LGT VA. OBS MOTION DOES NOT AGREE WITH NWP MODEL WINDS. T+6HR FCST BASED ON PERSISTENCE. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20180426/2030Z