FVXX20 KNES 310636
VA ADVISORY
DTG: 20071231/0636Z   VAAC: WASHINGTON

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

SUMMIT ELEV: 2585 FT (788 M)

ADVISORY NR: 2007/001

INFO SOURCE: HONOLULU MWO. MTSAT. GFS WINDS.
USGS. AFWA. MODIS TERRA

ERUPTION DETAILS: STEAM/GAS VENTING WITH LIGHT ASH

OBS VA DTG: 31/0530Z

OBS VA CLD: SFC/FL050 10NM WIDE LINE BETWEEN
N1742 E14349 - N1711 E14358 - N1620 E14540. ASH
IS MOVING NW 15-20 KNOTS. 

FCST VA CLD +6HR: 31/1130Z SFC/FL050 20NM WIDE
LINE BETWEEN N1803 E14241 - N1620 E14540. 

FCST VA CLD +12HR: 31/1730Z SFC/FL050 20NM WIDE
LINE BETWEEN N1752 E14310 - N1620 E14540. 

FCST VA CLD +18HR: 31/2330Z SFC/FL050 NO ASH EXP.

RMK: A WHITE/GREY PLUME CAN BE SEEN MOVING NW
FROM THE VOLCANO.  USGS REPORTS NO SEISMIC
ACTIVITY THOUGH SMALL PUFF AND VENTING COULD
OCCUR. SO THOUGHT IS MAINLY STEAM AND GAS WITH
MINIMAL ASH. ...GALLINA

NXT ADVISORY: WILL BE ISSUED BY 20071231/1230Z

NNNN
Full Size Graphic


-