FVXX20 KNES 110923
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL11/0922Z   VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1620E14540   AREA: MARIANA.ISLANDS

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/527

INFORMATION SOURCE: GUAM WFO. GFS MODEL WINDS.
RADIOSONDE. PILOT REPORT. GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS.
ADDITIONAL HIGHER LEVEL ACTIVITY BEGINNING AT
ABOUT 03Z.

OBS ASH DATE/TIME: 11/0802Z

OBS ASH CLOUD: SFC/FL200 40NM WIDE LINE BETWEEN
N1620E14538 - N1628E14337 - N1456E14133. ASH IS
MOVING W 10 KNOTS. SFC/FL250 N1706E14525 -
N1703E14549 - N1643E14558 - N1619E14542 -
N1706E14525 MOVING NE 5-10 KNOTS. 

FCST ASH CLOUD +6H: 11/1400Z  SFC/FL200
N1714E14259 - N1711E14358 - N1629E14538 -
N1610E14538 - N1602E14357 - N1519E14221 -
N1522E14103 - N1714E14259 SFC/FL250 N1750E14521 -
N1749E14609 - N1701E14608 - N1619E14541 -
N1650E14523 - N1750E14521 

FCST ASH CLOUD +12H: 11/2000Z  SFC/FL150
N1740E14131 - N1737E14359 - N1716E14457 -
N1628E14538 - N1611E14538 - N1621E14133 -
N1740E14131 SFC/FL200 N1837E14506 - N1836E14552 -
N1820E14615 - N1656E14555 - N1728E14502 -
N1837E14506 

FCST ASH CLOUD +18H: 12/0200Z  SFC/FL150
N1801E14055 - N1754E14358 - N1628E14538 -
N1611E14539 - N1654E14259 - N1604E14059 -
N1701E14059 - N1801E14055 SFC/FL200 N1901E14433 -
N1858E14538 - N1705E14530 - N1744E14429 -
N1901E14433 

REMARKS: SATELLITE IMAGERY DEPICTS A HIGHER LEVEL
ERUPTION BEGINNING AT ABOUT 03Z WHICH HAS
CONTINUED THRU 08Z. ASH ASSOCIATED WITH THIS
ACTIVITY IS MOVING TO THE NE AND IS  ESTIMATED AT
FL250 BASED ON 00Z PGUM RAOB AND SUBSEQUENT PILOT
REPORT. MAIN AREA OF ASH CONTINUES TO MOVE TO THE
WEST WITH A GRADUAL SHIFT TOWARD THE NORTHWEST
DURING THE FORECAST PERIOD. ...RUMINSKI

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL11/1515Z

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