FVXX23 KNES 212300
VOLCANIC ASH ADVISORY
ISSUED: 20061021/2300Z   VAAC: WASHINGTON

VOLCANO: ST. HELENS 1201-05
LOCATION: N4611 W12210   AREA: US-WASHINGTON

SUMMIT ELEVATION: 8363 FT (2549 M)

ADVISORY NUMBER: 2006/011

INFORMATION SOURCE: GOES-12. GFS WINDS. NAM
WINDS. PILOT REPORT. USGS. 

ERUPTION DETAILS: ROCKFALL AT 2218Z.

OBS ASH DATE/TIME: 22/2245Z

OBS ASH CLOUD: SFC/FL020 N4614 W12211 - N4611
W12208 - N4610 W12213 - N4613 W12214 - N4614
W12211 MOVING W 5-10 KNOTS. 

FCST ASH CLOUD +6H: 23/0500Z SFC/FL020 N4604
W12222 - N4547 W12220 - N4543 W12237 - N4601
W12240 - N4604 W12222 

FCST ASH CLOUD +12H: 23/1100Z SFC/FL020 NO ASH
EXP.

FCST ASH CLOUD +18H: 23/1700Z NO ASH EXP.

REMARKS: A ROCK FALL HAS OCCURED AT MSH.  A
DISCRETE PUFF OF ASH CAN BE SEEN TRAVELING  5 NMI
FROM THE SUMMIT HEADING WEST.  ASH SHOULD
DISIPATE WITHIN NEXT 6-12 HOURS. ...SPAMPATA

NEXT ADVISORY: WILL BE ISSUED BY 20061022/0500Z

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