FVXX20 KNES 090227
VOLCANIC ASH ADVISORY
ISSUED: 2005MAR09/0227Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 8363 FT (2549 M)

ADVISORY NUMBER: 2005/

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

ERUPTION DETAILS: EXHALATION AT 09/0125Z

OBS ASH DATE/TIME: 09/0200Z

OBS ASH CLOUD: SFC/FL360 N4626W12143 - N4625W12138
- N4621W12137 - N4614W12140 - N4613W12150 -
N4613W12200 - N4618W12154 - N4620W12152 -
N4623W12147 - N4626W12143 MOVING E 40 KNOTS. 

FCST ASH CLOUD +6H: 09/0600Z  SFC/FL360
N4640W11831 - N4639W11819 - N4635W11813 -
N4632W11815 - N4626W11834 - N4628W11847 -
N4634W11843 - N4638W11837 - N4640W11831 

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: CVO REPORTED ERUPTION AT 0125Z TO BETWEEN
FL310 AND FL360 WITH PLUME MOVING TO THE ENE.  THE
ERUPTION LASTED 30 MINUTES AND WAS NOT ASH LADEN. 
0200Z IMAGERY SHOWS LEADING EDGE OF THE PUFF 26
NMI TO THE ENE OF THE SUMMIT.  SINCE THE ERUPTION
IS OVER ATTM...WE WILL CONTINUE TO MONITOR AND
ISSUES INTERMEDIARY UPDATES IF SIGNIFICANT CHANGES
OCCUR. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2005MAR09/0830Z

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