FVXX21 KWBC 021845
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VOLCANIC ASH ADVISORY
ISSUED 1845 UTC 02 NOVEMBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-065      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 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY...GUAYAQUIL METEOROLOGICAL WATCH OFFICE...INSTITUTO
GEOFISICO IN ECUADOR...UPPER AIR WINDS FROM THE INSTITUTO GEOFISICO
...NUMERICAL MODEL WEATHER DATA FROM THE U.S. NATIONAL WEATHER
SERVICE.
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ERUPTION DETAILS:  OCCASIONAL WEAK TO MODERATE ERUPTIONS AND A
STEADY RELEASE OF ASH
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DETAILS OF ASH: MULTISPECTRAL SATELLITE IMAGERY THROUGH 02/1745 UTC
SHOWS A WELL DEFINED PLUME EXTENDING TO THE SOUTHWEST AWAY FROM THE
VOLCANO.  THE PLUME IS 207KM IN LENGTH AND 30KM WIDE AND EXTENDS TO
THE POINT: 2.8S 79.7W.  BASED ON UPPER AIR WIND DATA AND NUMERICAL
MODEL DATA THE PLUME IS BELIEVED TO BE BETWEEN FL300 AND FL390.  
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TRAJECTORY: ASH BETWEEN FL300 AND FL390 WOULD MOVE TOWARD THE
SOUTHWEST AT 10-15KTS.
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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 03/0030 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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WALTER/SAB/NOAA/NESDIS
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NNNN
"Attached Graphic Map Depicting Ash" 

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