FVXX20 KWBC 231715
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC23/1715Z  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: 2000/332
                                                              
INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY. MONTSERRAT VOLCANO OBSERVATORY. PILOT REPORT. 
GUADELOUPE RADIOSONDE.
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ERUPTION DETAILS: ROCKFALLS PRODUCING A NARROW ASH PLUME.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 23/1645Z SHOWS
A FAINT THIN ASH PLUME EXTENDING FROM THE SUMMIT TOWARD THE
WEST APPROXIMATELY TO THE POINT 1639N 6312W.  THE PLUME IS
ABOUT 108 KM (58 NMI) LONG AND 10 KM (5 NMI) WIDE AND BELOW
FL100. A PILOT REPORT ALSO NOTED ASH TO FL095.
   AN INTERMITTENT BUT BRIGHT HOTSPOT CAN BE SEEN IN SHORTWAVE
INFRARED IMAGERY. THE MONTSERRAT VOLCANO OBSERVATORY INDICATES
THAT ROCKFALLS ARE PRODUCING THE ASH AND THEY ALSO ESTIMATE
THE ASH TO BE BELOW FL100.
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TRAJECTORY: ASH TO FL100 IS MOVING TOWARD THE WEST AT ABOUT 15
KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 23/2300Z.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN
ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT
INTERNET URL ADDRESS
HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWER CASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

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