FVXX22 KWBC 280451
VOLCANIC ASH ADVISORY
ISSUED: 2003MAY28/0500Z      VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
 
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/074
 
INFORMATION SOURCE:  GOES-9 IMAGERY. UPPER AIR SOUNDING 
GFS MODEL WINDS FORECAST 
  
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSION SINCE MAY 10. 
 
OBS ASH DATE/TIME: 28/0325Z
 
OBS ASH CLOUD: SFC/FL100 N1621E14540 N1802E14439 N1846E14610
N1908E14632 N1943E14637 N2016E14549 N2008E14426 N1903E14331
N1755E14353  N1621E14540 MOVING NW 5-10 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS

REMARKS: CURRENT SATELLITE IMAGERY THROUGH 28/0325Z SHOWS THAT
THE VOLCANO CONTINUES TO EMIT ASH WHICH IS MOVING TO THE
NORTHWEST AND THEN TOWARDS THE NORTH.  AS THE ASH APPROACHES
N1902E14400 IS STARTS MIXING IN WITH CLOUDS ASSOCIATED WITH AN
OLD FRONTAL BOUNDARY OR SURFACE TROF AND BECOMES MORE DIFFICULT
TO DETECT.  

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY28/1100Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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