FVXX21 KWBC 291315
VOLCANIC ASH ADVISORY STATEMENT - CORRECTION FOR ISSUANCE TIME
ISSUED 1300 UTC 29 JAN 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-117 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: GEOPHYSICAL INSTITUTE...GOES-8
VISIBLE...INFRARED AND MULTISPECTRAL SATELLITE IMAGERY...UPPER AIR
SOUNDING
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ERUPTION DETAILS: LAST ERUPTION OCCURRED FROM 29/0900 TO 29/0930
UTC.
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DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTS THAT THERE WAS AN
ERUPTION BETWEEN 0900 AND 0930 UTC WITH ASH TO APPROXIMATELY FL200.
SATELLITE IMAGERY THROUGH 29/1230 UTC SHOWED DENSE CLOUDINESS AROUND
THE VOLCANO AT OR ABOVE FL200 MAKING DETECTION OF ASH IMPOSSIBLE
BELOW THE CLOUD DECK.
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TRAJECTORY: BASED ON OBSERVED UPPER AIR WINDS THIS MORNING ANY ASH
REMAINING FROM THE ERUPTION WOULD MOVE TOWARD THE WEST AT 10 TO 15
KNOTS.
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OUTLOOK: SEE SIGMETS
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THE NEXT STATEMENT WILL BE ISSUED BY 29/1900 UTC.
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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
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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RUMINSKI
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