FVXX20 KNES 310011
VA ADVISORY
DTG: 20091231/0010Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
PSN: N1642 W06210

AREA: W_INDIES

SUMMIT ELEV: 3002 FT (915 M)

ADVISORY NR: 2009/393

INFO SOURCE: GOES-12. GFS WINDS. MONTSERRAT
OBSERVATORY. 

ERUPTION DETAILS: ONGOING ROCKFALLS AND VENTING
OF ASH AND GASES

OBS VA DTG: 30/2345Z

OBS VA CLD: SFC/FL150 N1658 W06452 - N1658 W06241
- N1643 W06210 - N1400 W06359 - N1321 W06659 -
N1515 W06729 - N1658 W06452 MOV SW 10KT 

FCST VA CLD +6HR: 31/0600Z SFC/FL150 N1701 W06532
- N1658 W06242 - N1643 W06209 - N1359 W06359 -
N1316 W06732 - N1514 W06729 - N1701 W06532 

FCST VA CLD +12HR: 31/1200Z SFC/FL150 N1701
W06214 - N1641 W06208 - N1358 W06359 - N1316
W06731 - N1516 W06729 - N1701 W06600 - N1701
W06214 

FCST VA CLD +18HR: 31/1800Z SFC/FL150 N1702
W06214 - N1639 W06208 - N1356 W06359 - N1315
W06731 - N1515 W06729 - N1702 W06600 - N1702
W06214 

RMK: THE VO REPORTS ROCKFALLS AND 4-6 HOUR CYCLES
OF STRONG VENTING OF ASH THAT RESULTS IN THICK
AND THIN ASH IN IMAGERY TO TRACK. ESTIMATED BELOW
FL150 MOSTLY MOVG SW.  ...SWANSON

NXT ADVISORY: WILL BE ISSUED BY 20091231/0615Z

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