FVXX20 KNES 031354
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY03/1354Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/0235

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSIONS	

OBS ASH DATE/TIME: 03/1302Z

OBS ASH CLOUD: SFC/FL160 N1755E14607 - N1655E14622
- N1619E14541 - N1619E14537 - N1723E14456 -
N1755E14607 MOVING NE 0-5 KNOTS. SFC/FL100
N1859E14101 - N1815E14230 - N1834E14452 -
N1743E14536 - N1723E14455 - N1713E14223 -
N1733E14102 - N1859E14101 MOVING NW 0 KNOTS. 

FCST ASH CLOUD +6H: 03/2000Z SFC/FL170 N1823E14646
- N1558E14629 - N1602E14532 - N1822E14459 -
N1823E14646 SFC/FL100 N1928E14023 - N1821E14500 -
N1620E14528 - N1709E14326 - N1734E14031 -
N1928E14023 

FCST ASH CLOUD +12H: 04/0200Z SFC/FL170
N1800E14641 - N1601E14653 - N1552E14531 -
N1644E14528 - N1800E14641 SFC/FL100 N1938E13946 -
N1821E14249 - N1654E14453 - N1641E14528 -
N1551E14530 - N1546E14526 - N1602E14441 -
N1653E14249 - N1725E14006 - N1938E13946 

FCST ASH CLOUD +18H: 04/0800Z SFC/FL170
N1729E14630 - N1616E14655 - N1540E14611 -
N1604E14530 - N1644E14528 - N1629E14559 -
N1729E14630 SFC/FL100 N1908E14107 - N1725E14408 -
N1644E14528 - N1604E14529 - N1600E14355 -
N1714E14109 - N1908E14107 

REMARKS: THOUGH THERE HAVE BEEN SOME WEATHER
CLOUDS OBSCURRING SOME OF THE AREA...THE ASH CLOUD
IS VISIBLE IN MULTI- SPECTRAL IMAGERY.  THE ASH
NEAR THE SUMMIT HAS BEEN DRIFTING SLOWLY N AND
NE...WHICH INDICATES IT IS NEAR THE TRADE
INVERSION WHICH IS ABOUT FL140-170.  LOWER LEVEL
ASH WEST OF 144E CAN BE SEEN MOVING TO THE W OR
NW.  FORECAST SHOWS SOME SOUTHWARD SHIFT OF
MOVEMENT WITH TIME...BUT ASH WILL NOT MOVE MUCH AS
WIND SPEED WILL BE SLOWER THAN 10-15KTS AT MOST
LEVELS. ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY03/2000Z

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