FVXX22 KWBC 100120
VOLCANIC ASH ADVISORY
ISSUED: 2003JUL10/0100Z      VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/249

INFORMATION SOURCE: GOES 9 IMAGERY. GFS MODEL WINDS FORECAST
      
ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10.

OBS ASH DATE/TIME: 09/0002Z.

OBS ASH CLOUD: SFC/FL080 N1620E14542 N1610E14523 N1549E14514
N1545E14459 N1548E14449 N1556E14448 N1616E14509 N1623E14540
N1620E14542 MOVING SW 10-15 KNOTS.  SFC/FL080 33NM WIDE LINE OF
ASH EXTENDING BETWEEN N1535E14440 N1456E14302 N1442E14115. ASH IS
MOVING SW 10-15 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS.

REMARKS: ASH IS VERY THIN AND DIFFICULT TO LOCATE IN
GEOSTATIONARY IMAGERY.  A POLAR IMAGE FROM 092126Z SHOWED AN AREA
OF ASH TO THE SOUTHWEST OF THE VOLCANO.  THE FIRST AREA ABOVE
EXTENDS APPROXIMATELY 60 NM FROM THE SUMMIT AND IS ASH MIXED WITH
CLOUDS.  THE SECOND AREA ABOVE IS PROBABLE ASH OR HAZE MIXED WITH
CLOUDS.  IT EXTENDS APPROXIMATELY 405 NM FROM THE VOLCANO AND IS
ABOUT 200 NM LONG.

NEXT ADVISORY: WILL BE ISSUED BY 2003JUL10/0700Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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