FVXX21 KWBC 181300     
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1300  UTC 18 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-457        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...NATIONAL WEATHER SERVICE MODEL WINDS
FORECAST
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ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS.
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DETAILS OF ASH: THE FIRST FEW VISIBLE SATELLITE IMAGES OF THE
MORNING THROUGH 1215 UTC SHOWS A PLUME BOUNDED BY THE POINTS
0128S 7826W  0115S 7842W  0103S 7842W  0114S 7832W.  THIS
PLUME IS 30 NMI LONG AND 10 NMI WIDE.  MOVEMENT IS TOWARD THE
NORTHWEST AT 10 KNOTS.  NATIONAL WEATHER SERVICE MODEL WINDS
WOULD PLACE THE HEIGHT AT FL250.

TRAJECTORY: WEST NORTHWEST TO NORTHWEST AT 10-15 KNOTS
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THE NEXT STATEMENT WILL BE ISSUED BY 18/1900 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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SCHWARTZ
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NNNN"Attached Graphic Map Depicting Ash" 

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