FVXX20 KNES 041343
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY04/1343Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/239

INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE.
VAFTAD. GOES-9. 

ERUPTION DETAILS: CONTINUOUS STEAM AND ASH
EMISSION

OBS ASH DATE/TIME: 04/1202Z

OBS ASH CLOUD: SFC/FL180 N1639E14620 - N1559E14701
- N1530E14620 - N1619E14540 - N1639E14620 MOVING N
5-10 KNOTS. SFC/FL140 N1619E14543 - N1532E14611 -
N1449E14445 - N1558E14458 - N1619E14543 MOVING S
5-10 KNOTS. SFC/FL120 N1902E14531 - N1640E14802 -
N1639E14602 - N1718E14516 - N1902E14531 MOVING N 5
KNOTS. 

FCST ASH CLOUD +6H: 04/1800Z SFC/FL180 N1704E14659
- N1629E14809 - N1534E14816 - N1458E14632 -
N1623E14540 - N1704E14659 SFC/FL140 N1619E14541 -
N1506E14624 - N1327E14408 - N1435E14351 -
N1533E14402 - N1619E14541 SFC/FL140 N1432E14458 -
N1429E14459 - N1432E14458 SFC/120 N1753E14547 -
N1728E14740 - N1655E14807 - N1553E14613 -
N1623E14437 - N1719E14438 - N1753E14547 

FCST ASH CLOUD +12H: 05/0000Z SFC/180 N1650E14808
- N1532E14842 - N1459E14720 - N1601E14701 -
N1650E14808 SFC/FL140 N1619E14542 - N1336E14532 -
N1321E14311 - N1559E14308 - N1619E14542 SFC/FL120
N1835E14601 - N1602E14759 - N1604E14437 -
N1655E14407 - N1835E14601 

FCST ASH CLOUD +18H: 05/0600Z NOT AVBL

REMARKS: THERE ARE SEVERAL AREAS OF ASH NOTED IN
MULTISPECTRAL IMAGERY. THE AREA OF ASH NORTH OF
THE ISLAND IS NEARLY STATIONARY  AND LEFT OVER
FROM PREVIOUS EMISSIONS WITH THE NEWER ASH MOVING
MAINLY SOUTH SOUTHWEST AND EAST FROM THE VOLCANO. 
...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY04/1915Z

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