FVXX20 KNES 050403
VOLCANIC ASH ADVISORY
ISSUED: 2004OCT05/0401Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 8363 FT (2549 M)

ADVISORY NUMBER: 2004/012

INFORMATION SOURCE: GOES-12. GFS MODEL WINDS.
PILOT REPORT. GOES-10. CASCADES VOLCANO
OBSERVATORY

ERUPTION DETAILS: EMISSION OF STEAM AND SOME ASH
AT 04/1645Z.

OBS ASH DATE/TIME: NIL

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA.

FCST ASH CLOUD +6H: NOT AVBL

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: IN THE LAST GOES-12 VISIBLE IMAGERY OF
THE DAY AN EXTREMELY FAINT STEAM AND ASH PLUME TO
FL120 COULD BE SEEN.  AT 0115Z IT WAS DETACHED
FROM BUT NEAR THE SUMMIT AND IT EXTENDED TOWARD
THE EAST SOUTHEAST APPROXIMATELY TO THE POINT N45
W120 IN NORTH CENTRAL OREGON.  HOWEVER NO PLUME OR
HOTSPOT CAN BE SEEN IN CURRENT MULTISPECTRAL OR
INFRARED SATELLITE IMAGERY. ...STREETT

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

NEXT ADVISORY:  NO FURTHER ADVISORIES

NNNN