FVXX23 KWBC 080730
VOLCANIC ASH ADVISORY
ISSUED 0730 UTC 08 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-123    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 INFRARED AND MULTISPECTRAL
IMAGERY. 08/0000 UTC UPPER AIR SOUNDING FROM GUADELOUPE. WINDS
FORECAST FROM THE AVIATION MODEL.

ERUPTION DETAILS: NEARLY CONTINUOUS ASH AND STEAM EMISSIONS.
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DETAILS OF ASH CLOUD: NO ASH COULD BE DETECTED IN
MULTISPECTRAL AND INFRARED SATELLITE IMAGERY THROUGH 08/0645
UTC. HOWEVER DIFFUSE ASH BELOW FL100 NORMALLY DOES NOT SHOW UP
WELL ON MULTISPECTRAL OR INFRARED SATELLITE IMAGERY. THE
VOLCANO EMITTED ASH NEARLY CONTINUOUSLY THROUGHOUT THE DAY.
ASH WAS LAST DETECTED IN IMAGERY AT 07/2202 UTC AND WAS
ESTIMATED BELOW FL100 MOVING TO THE NORTHWEST.  
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TRAJECTORY: ANY ASH PRESENT FROM THE SUMMIT TO FL100 WOULD
MOVE TOWARDS THE WEST NORTHWEST AT 20 TO 25 KNOTS.

OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 08/1330 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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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CLARK 
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