FVXX20 KNES 131904 VA ADVISORY DTG: 20091013/1904Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 PSN: N1642 W06210 AREA: W_INDIES SUMMIT ELEV: 3002 FT (915 M) ADVISORY NR: 2009/051 INFO SOURCE: GOES-12. NAM WINDS. RADIOSONDE. MONTSERRAT OBSERVATORY. ERUPTION DETAILS: NEW EMISSION TO FL200 WITH CONTINUED LOWER EMISSIONS DUE TO ROCKFALLS AND VENTING. OBS VA DTG: 13/1845Z OBS VA CLD: SFC/FL110 N1643 W06240 - N1620 W06240 - N1408 W06728 - N1511 W07232 - N1616 W07147 - N1552 W06550 - N1641 W06432 - N1643 W06240 MOV W 10-15KT SFC/FL200 10NM WID LINE BTN N1641 W06240 - N1640 W06207. MOV W 15KT FCST VA CLD +6HR: 14/0100Z SFC/FL110 N1641 W06356 - N1540 W06401 - N1407 W06731 - N1334 W07205 - N1529 W07216 - N1611 W06803 - N1641 W06356 SFC/FL200 N1701 W06359 - N1651 W06208 - N1623 W06211 - N1538 W06359 - N1701 W06359 FCST VA CLD +12HR: 14/0700Z SFC/FL110 N1640 W06516 - N1453 W06504 - N1335 W07020 - N1548 W06958 - N1640 W06516 SFC/FL200 N1716 W06515 - N1651 W06207 - N1623 W06212 - N1513 W06504 - N1716 W06515 FCST VA CLD +18HR: 14/1300Z SFC/FL110 N1647 W06211 - N1622 W06212 - N1336 W07048 - N1530 W07125 - N1642 W06830 - N1647 W06211 SFC/FL200 NO ASH EXP RMK: HARD TO FORECAST HOW DENSE NEW EMISSION TO FL200 WILL BE OR HOW LONG IT WILL LAST. LOWER LEVEL ASH STILL SEEN MOVING WEST. ...SWANSON NXT ADVISORY: WILL BE ISSUED BY 20091014/0100Z NNNN