FVXX21 KNES 171236
VA ADVISORY
DTG: 20170817/1236Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2017/020

INFO SOURCE: GOES-EAST. NON-OPERATIONAL GOES-16.
GUAYAQUIL MWO. NWP MODELS. 

ERUPTION DETAILS: EMS AT 17/1139Z

OBS VA DTG: 17/1215Z

OBS VA CLD: SFC/FL270 S0148 W07829 - S0159 W07819
- S0201 W07822 - S0153 W07832 - S0148 W07829 MOV
NW 15-20KT 

FCST VA CLD +6HR: 17/1830Z SFC/FL270 NO ASH EXP

FCST VA CLD +12HR: 18/0030Z NO ASH EXP

FCST VA CLD +18HR: 18/0630Z NO ASH EXP

RMK: GUAYAQUIL MWO REPORTED VA TO FL270 AT
17/1139Z. IMAGERY SHOWS INITIIAL PUFF OF VA
MOVING NW AT 15-20 KT WITH SEVERAL SMALLER PUFFS
OF VA AFTERWARDS.  ...SCHWARTZ

NXT ADVISORY: WILL BE ISSUED BY 20170817/1830Z