FVXX20 KNES 071736
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL07/1736Z   VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540   AREA: MARIANA.ISLANDS

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/511

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: ONGOING ASH EMISSIONS

OBS ASH DATE/TIME: 07/1649Z

OBS ASH CLOUD: SFC/FL140 N1755E14138 - N1643E14348
- N1639E14540 - N1614E14542 - N1459E14221 -
N1552E14046 - N1402E13830 - N1203E13228 -
N1358E13123 - N1615E13554 - N1755E14138 MOVING SW
5-10 KNOTS. 

FCST ASH CLOUD +6H: 07/2249Z SFC/FL140 N1744E13800
- N1641E14540 - N1634E14540 - N1615E14543 -
N1450E14401 - N1417E13844 - N1744E13800 

FCST ASH CLOUD +12H: 07/0449Z SFC/FL140
N1743E13656 - N1641E14541 - N1600E14535 -
N1425E14405 - N1350E13759 - N1743E13656 

FCST ASH CLOUD +18H: 07/1049Z SFC/FL140
N1749E14218 - N1639E14540 - N1605E14543 -
N1512E14402 - N1501E13823 - N1714E13705 -
N1749E14218 

REMARKS: SPLIT WINDOW IMAGERY SHOWS THE ASH PLUME
EXTENDING WELL FAR WEST NEAR THE VAAC BOUNDARY.  
THE PLUME IS ESTIMATED AT FL140...BUT IT IS MORE
LIKELY THAT THE HEIGHTS OF THE WESTERN EXTENTS 
ARE LOWER AND MOSTLY LIGHT ASH AND VOG.  THE MOST
DENSE ASH IS NEAR THE SUMMIT AND A SMALL POCKET
NEAR 16N142.3E.   ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL07/2330Z

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