FVXX21 KWBC 031345
VOLCANIC ASH ADVISORY
ISSUED 1345 UTC 03 AUG 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-906         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. SIX HOUR WIND FORECAST FROM THE 03/0600
UTC AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM MOST
RECENTLY BEGINNING ABOUT 0600 UTC.
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DETAILS OF ASH: ASH IS VISIBLE IN SATELLITE IMAGERY THIS
MORNING AS OF 1245 UTC.  THE PLUME EXTENDS APPROXIMATELY 205
KM (110 NMI) FROM THE SUMMIT AND IS WITHIN APPROXIMATELY 13 KM
(25 NMI) EITHER SIDE OF A LINE FROM THE SUMMIT TO 0147S 8016W. 
THREE SEPARATE PUFFS OF ASH CAN BE SEEN WITHIN THIS PLUME
PRODUCING AREAS OF THICKER ASH.  THE LARGEST AREA IS CENTERED
ON 0135S 7953W AND IS APPROXIMATELY 53KM IN DIAMETER (29 NMI)
AT THE WIDEST POINT.  A SECOND AREA IS CENTERED ON 0134S 7914W
AT ABOUT 20KM (11 NMI) IN DIAMETER WITH THE REMAINING AREA
CENTERED ON 0128S 7845W AT ABOUT 24KM (13 NMI) IN DIAMETER. 
THIS ASH IS ESTIMATED TO BE MOVING WESTERLY AND MAY BE UP TO
FL300. 
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TRAJECTORY: ASH FROM THE SUMMIT TO FL300 WILL MOVE TOWARD THE
WEST AROUND 20 TO 25 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 03/1930 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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NNNN"Attached Graphic Map Depicting Ash" 

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