FVXX22 KWBC 191235
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1235 UTC 19 OCTOBER 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-225    WEST INDIES 16.72N 62.18W  
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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..GUADELOUPE
UPPER AIR SOUNDING AND GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL
IMAGERY. AVN MODEL FROM NCEP.
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ERUPTION DETAILS: MVO REPORTS ERUPTION OCCURRING AT 19/0600 UTC.
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DETAILS OF ASH CLOUD: GOES-8 VISIBLE IMAGERY THROUGH 12:15 UTC
REVEALS A VERY THIN ASH PLUME EXTENDING 23 KM (12 NMI) SOUTHWEST OFF
OF THE ISLAND TO 16.59N 62.34W. THIS PLUME IS ABOUT 5 KM WIDE (3
NMI) AND IS ESTIMATED TO BE AT OR BELOW FL050. MVO REPORTS THAT A
GASEOUS EXHALATION IS CONTINUING FROM THE VERY TOP OF SOUFRIERE
HILLS AND THAT THIS IS TYPICAL AFTER A SMALL ERUPTION.
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TRAJECTORY: 0000 UTC RAOBS AND THE 1200 UTC AVN MODEL FORECAST
SUGGEST ANY ASH BELOW FL050 TO MOVE SOUTHWEST AT 20 TO 25 KNOTS.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH
LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS  
www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE FOR THIS EVENT WILL BE ISSUED BY 19/1830 UTC.
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HUGHES/NOAA/NESDIS/SAB
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"