FVXX22 KNES 110836
VA ADVISORY
DTG: 20080311/0834Z   VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
PSN: N1621 E14539   AREA: MARIANA.ISLANDS

SUMMIT ELEV: 2585 FT (788 M)

ADVISORY NR: 2008/085

INFO SOURCE: MTSAT. GFS WINDS. OMI

ERUPTION DETAILS: INCREASED PLUME DENSITY OBSERVED

OBS VA DTG: 11/0730Z

OBS VA CLD: SFC/FL090 8NM WIDE LINE BETWEEN N1702
E14417 - N1640 E14437 - N1621 E14540. ASH IS
MOVING W 20-25 KNOTS. 

FCST VA CLD +6HR: 11/1330Z SFC/FL090 8NM WIDE
LINE BETWEEN N1659 E14423 - N1643 E14441 - N1620
E14541. 

FCST VA CLD +12HR: 11/1930Z SFC/FL090 8NM WIDE
LINE BETWEEN N1655 E14425 - N1640 E14441 - N1620
E14541. 

FCST VA CLD +18HR: 12/0130Z SFC/FL090 8NM WIDE
LINE BETWEEN N1656 E14431 - N1620 E14541. 

RMK: MTSAT MAGERY AT 0630Z AND 0730Z SHOW A
DENSER PLUME THAN PREVIOUS NIGHTS BUT THERE IS
GREAT UNCERTAINTY ABOUT HOW MUCH ASH IS IN THE
PLUME. PLUME EXTENDS FROM SUMMIT TOWARD WNW. 
OMI SUGGESTS INCREASED SO2 EMISSIONS.

NXT ADVISORY: WILL BE ISSUED BY 20080311/1430Z

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