FVXX21 KWBC 010130 
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0130 UTC 01 DEC 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-189       ECUADOR 1.47S 78.44W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 MULTISPECTRAL AND INFRARED SATELLITE 
IMAGERY THROUGH 0045 UTC...AVIATION MODEL WIND FORECAST. 

ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS AND OCCASIONAL
EXPLOSIONS OF ASH.
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DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 0045 UTC SHOWS A
NARROW ASH PLUME ABOUT 22 KM (11 NMI) WIDE EXTENDING ABOUT 56 KM (30
NMI) NORTH NORTHWEST FROM THE VOLCANO TO 1.08S 78.77W. IN THE LAST
FEW VISIBLE IMAGES OF THE DAY THE ASH PLUME WAS BECOMING OBSCURED
BY CLOUDS NEAR 0.92S 78.73W INDICATING THAT ASH MAY EXTEND FURTHER
TO THE NORTHWEST THAN IS CURRENTLY VISIBLE.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ASH AT FL250 WOULD MOVE
TOWARD THE NORTH-NORTHWEST AT 10-15 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  
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 01/0730 UTC.
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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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