FVXX20 KWBC 040240
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0240 UTC 04 JULY 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-165    WEST INDIES 16.72N 62.18W  
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000 FT (915 M)
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SOURCES OF INFORMATION:  GOES-8 INFRARED...AND MULTISPECTRAL
IMAGERY.  0000 UTC GUADELOUPE UPPER AIR SOUNDING.  
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ERUPTION DETAILS: NEW ERUPTION AT APPROXIMATELY 04/0100 UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY AT 04/0202 UTC INDICATES
THERE WAS AN ASH CLOUD MOVING SOUTHWEST AWAY FROM THE ISLAND AND IT
APPEARS THE ERUPTION OCCURRED AROUND 04/0100 UTC. TRYING TO ESTIMATE
A HEIGHT FROM THE WINDS IS DIFFICULT BUT WE ARE ESTIMATING THE CLOUD
TO BE BELOW FL250. AT 0202 UTC THE CLOUD WAS SOUTH SOUTHWEST (205
DEGREES) FROM THE SUMMIT AROUND 55 KM (30 NMI) AND WAS ROUGHLY 26 KM
WIDE (14 NMI) WIDE.  
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TRAJECTORY: ASH BELOW FL250 WILL MOVE TO THE SOUTH SOUTHWEST AROUND
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 LATEST SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED AROUND 04/0840 UTC. 
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

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