FVXX22 KNES 031953
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG03/1953Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 8363 FT (2549 M)

ADVISORY NUMBER: 2005/016

INFORMATION SOURCE: GFS MODEL WINDS. PILOT REPORT.
GOES-10. WEB CAMERA

ERUPTION DETAILS: WIND BLOWN ASH AND DUST

OBS ASH DATE/TIME: 03/1941Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL120 MOVING TO W 5-15 KNOTS.

FCST ASH CLOUD +6H: 04/0130Z  WINDS SFC/FL120
MOVING TO N 0-10 KNOTS.

FCST ASH CLOUD +12H: 04/0730Z  WINDS SFC/FL120
MOVING TO NE 0-5 KNOTS.

FCST ASH CLOUD +18H: 04/1330Z NOT AVBL.

REMARKS: STRONG WINDS IN THE CRATER OF MSH HAS
LEAD TO RESUSPENTION OF ASH AND DUST.  THE ASH IS
BEING BLOWN OVER THE CRATER RIM TO THE WEST.  
THIS ACTIVITY SHOULD REMAIN NEAR SUMMIT AND
CONTINUE...THOUGH SHOULD NOT POSE A SIGNIFCANT
THREAT TO AVIATION. PILOT REPORT SUGGESTS HEIGHT
TO FL115. ...GALLINA

NEXT ADVISORY: NO FURTHER ADVISORIES

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