FVXX20 KWBC 251950Z
VOLCANIC ASH ADVISORY
ISSUED: 2001SEP25/1950Z   VAAC: WASHINGTON
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VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: 1643N 6211W    AREA: CARIBBEAN
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SUMMIT ELEVATION: 3000 FT (915 M)
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ADVISORY NUMBER: 2001/218
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INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY.
MONTSERRAT VOLCANO OBSERVATORY.
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ERUPTION DETAILS: ROCKFALLS PRODUCING STEAM AND ASH.
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DETAILS OF ASH CLOUD: THE MONTSERRAT OBSERVATORY HAS REPORTED INCREASED
ROCKFALL ACTIVITY PRODUCING STEAM AND ASH. GOES-8 VISIBLE AND
MULTISPECTRAL IMAGERY THROUGH 25/1930Z SHOWS A LOW LEVEL PLUME EXTENDING
APPROXIMATELY TO THE PONT 1631N 6310W.  THE PLUME IS ABOUT 60 NMI LONG
AND UP TO 10 NMI WIDE.  HEIGHT IS ESTIMATED AT OR BELOW FL050. A THICK
AREA OF STEAM AND ASH IS OBSERVED ABOUT 10 NMI WEST OF THE SUMMIT. 
MOVEMENT IS OBSERVED TO BE WEST AT 15 KNOTS.  

TRAJECTORY: WEST AT 15 KNOTS
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 26/0200Z.
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INTERNET URLS...
MESSAGE LISTSERV   WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML
MESSAGES GRAPHICS AND IMAGERY   WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWERCASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash Only" 

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