FVXX20 KNES 261543
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL26/1543Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/592

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

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS

OBS ASH DATE/TIME: 26/1502Z

OBS ASH CLOUD: SFC/FL200 N2531E14401 - N2429E14535
- N1804E14205 - N1750E14444 - N1628E14538 -
N1559E14541 - N1556E14212 - N1447E14023 -
N1448E13850 - N1759E13959 - N2531E14401 MOVING W
10-20 KNOTS. 

FCST ASH CLOUD +6H: 26/2100Z SFC/FL200 N2719E14454
- N2644E14558 - N1811E14207 - N1649E14535 -
N1556E14543 - N1603E14128 - N1522E13758 -
N1722E13802 - N2031E14000 - N2719E14454 

FCST ASH CLOUD +12H: 27/0300Z SFC/FL200
N1810E13758 - N1759E14354 - N1642E14540 -
N1559E14541 - N1556E13748 - N1810E13758 

FCST ASH CLOUD +18H: 27/0900Z SFC/FL200
N1808E13801 - N1754E14442 - N1644E14538 -
N1556E14543 - N1545E13802 - N1808E13801 

REMARKS: HAVE RAISED THE ESTIMATED HEIGHT OF THE
ASH DUE TO 12Z PGUM RAOB WHICH SHOWS NEARLY
UNIDIRECTIONAL WIND FLOW THROUGH 400 MB AND
INVERSION LAYER NEAR FL200. EXPECT THAT BROAD AREA
OF ASH SEEN IN MULTISPECTRAL IMAGERY THAT HAS BEEN
DRAWN NORTHWARD TO NEAR 25N145E WILL DISSIPATE BY
12 HOURS OR SO. ...RUMINSKI

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL26/2145Z

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