Subject: FVAG01 SABM 211400


FVAG01 SABM 211400                                              2009264 1411
VA ADVISORY
DTG: 20090921/1400Z
VAAC: BUENOS AIRES
VOLCANO: CHAITEN 1508-41
PSN: S4250 W07239
AREA: CHILE-S
SUMMIT ELEVATION: 962M
ADVISORY NUMBER: 2009/147
INFORMATION SOURCE: SIGMET, GOES 12 IMAGERY AND WEBCAM
ERUPTION DETAILS: CONTINUOUS EMISSION
OBS ASH DATE/TIME:  21/1200Z
OBS ASH CLOUD:  TOP FL080 S4250 W07239 - S4218 W07211 - S4231 W07206
 - S4250
W07239 MOV NE 15KT
FCST ASH CLD + 06HR: 21/1800Z SFC/FL080  S4250 W07239 - S4200 W07200
 - S4180
W07200 - S4180 W07220- S4250 W07239
FL080/200 NO ASH EXP
FL200/350 NO ASH EXP
FL350/550 NO ASH EXP
FCST ASH CLD + 12HR: 22/0000Z SFC/FL080  S4250 W07239 - S4200 W07200
 - S4180
W07200 - S4180 W07215 - S4250 W07239
FL080/200 NO ASH EXP
FL200/350 NO ASH EXP
FL350/550 NO ASH EXP
FCST ASH CLD + 18HR: 22/0600Z SFC/FL080 S4250 W07239 - S4200 W07200 -
 S4100
W07200 - S4100 W07205 -S4200 W07205 - S4250 W07239
FL080/200 NO ASH EXP
FL200/350 NO ASH EXP
FL350/550 NO ASH EXP
REMARKS: 1200Z GOES 12 IMAGERY REVEALS A 15KM WIDE ASH PLUME
 EXTENDING NE OF THE
VOLCANO TO 15KT
NEXT ADVISORY: 21/2000Z=