FVXX20 KNES 051841
VOLCANIC ASH ADVISORY
ISSUED: 2004OCT05/1841Z   VAAC: WASHINGTON

VOLCANO: ST. HELENS 1201-05
LOCATION: N4612W12211   AREA: US-WASHINGTON

SUMMIT ELEVATION: 8363 FT (2549 M)

ADVISORY NUMBER: 2004/016

INFORMATION SOURCE: GFS MODEL WINDS. GOES-10.
USGS. 

ERUPTION DETAILS: ASH AND STEAM EMISSIONS BEGAN 
AROUND 05/1600Z.

OBS ASH DATE/TIME: 05/1800Z

OBS ASH CLOUD: SFC/FL130 8NM WIDE LINE BETWEEN
N4655W12127 - N4614W12213. ASH IS MOVING NE 25-35
KNOTS. 

FCST ASH CLOUD +6H: NOT AVBL

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: GOES VISIBLE IMAGERY SHOWS AN ASH AND
STEAM EMISSION WHICH EXTENDS TO THE NORTHEAST OF
THE SUMMIT.  USGS REPORTS THAT THE HEIGHT OF THE
PLUME EXTENDS TO FL130. PREVIOUS MESSAGE SENT AT
1645Z WAS NOT DISSEMINATED DUE TO COMMUNICATIONS
PROBLEMS. ...RUMINSKI/KARST

THIS PRODUCTS HEADER WILL CHANGE FROM KWBC TO KNES
EFFECTIVE OCT 28, 2004.

NEXT ADVISORY: WILL BE ISSUED BY 2004OCT06/0045Z

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