FVXX22 KWBC 211330
VOLCANIC ASH ADVISORY
ISSUED 1330 UTC 21 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-160          WEST INDIES 1643N 6211W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL IMAGERY. 1200 UTC GUADELOUPE UPPER AIR SOUNDING.
MONTSERRAT VOLCANO OBSERVATORY.
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ERUPTION DETAILS: ROCKFALLS AND MANY SMALL SCALE ASH EMISSIONS
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DETAILS OF ASH CLOUD: SINCE THE AREA IS COVERED BY DENSE
WEATHER CLOUDS NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH
21/1245 UTC OR BY GROUND OBSERVATION AT THE SUMMIT.  ASH WAS
LAST SEEN AT 20/2145 UTC WITH A HEIGHT ESTIMATED TO BE BELOW
FL080.  THE MONTSERRAT VOLCANO OBSERVATORY REPORTS SLIGHTLY
DECREASED ACTIVITY LAST NIGHT.  
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TRAJECTORY: ASH BELOW FL080 WILL MOVE TOWARD THE WEST AT ABOUT
30 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 21/1930 UTC.
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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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STREETT/CLARK
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