FVXX22 KWBC 222030
VOLCANIC ASH ADVISORY
ISSUED 2030 UTC 22 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-166          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: MONTSERRAT VOLCANO OBSERVATORY. GOES-8
VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY.  WIND FORECAST
DATA FROM 22/1200 UTC RUN OF AVIATION MODEL 
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ERUPTION DETAILS: ROCKFALLS PROBABLY PRODUCING CONTINUOUS ASH 

DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY
REPORTS THAT ROCKFALLS HAVE CONTINUED THROUGHOUT THE DAY
PROBABLY PRODUCING ASH AT OR BELOW FL100. THERE IS NO
DETECTABLE ASH IN GOES-8 IMAGERY THROUGH 22/1945 UTC ALTHOUGH
THERE ARE EXTENSIVE METEOROLOGICAL CLOUDS ASSOCIATED WITH
HURRICANE DEBBY IN THE AREA.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH BELOW FL100 TO
MOVE NORTH-NORTH WEST AT 20 TO 25 KNOTS. 
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OUTLOOK:  SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 23/0230 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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