FVXX21 KWBC 241930
VOLCANIC ASH ADVISORY
ISSUED 1930 UTC 24 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-866         ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. 24/1800 UTC FORECAST UPPER WINDS FROM
THE 24/1200 UTC AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1845 UTC SHOWS
EXTENSIVE LOW AND MID LEVEL CLOUDS OBSCURING THE VIEW OF THE
VOLCANO. NO REPORTS OF ASH HAVE BEEN RECEIVED BY THE VAAC
TODAY. THE VOLCANO REMAINS IN A HIGHLY ACTIVE STATE AND COULD
PRODUCE ASH AT ANYTIME.
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TRAJECTORY: UPPER AIR PATTERS SUGGEST ANY ASH AT OR NEAR
SUMMIT LEVEL TO MOVE SOUTHWEST AT 10 TO 15 KNOTS. ASH TO FL300
WOULD MOVE WEST AT 10 KNOTS. ASH ABOVE FL300 WOULD MOVE
NORTHWEST AT 5 TO 10 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 25/0130 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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HUGHES
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