FVXX21 KWBC 011439
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1439 UTC 01 NOVEMBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-059      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...NATIONAL WEATHER SERVICE NUMERICAL WEATHER PREDICTION
MODELS...GUAYAQUIL METEOROLOGICAL WATCH OFFICE.
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ERUPTION DETAILS...EXPLOSIVE ERUPTION OF THE VOLCANO SEEN IN
SATELLITE IMAGERY AT ABOUT 1245 UTC
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DETAILS OF ASH: SATELLITE IMAGERY INDICATED AN ERUPTION INITIALLY AT
ABOUT 1245 UTC. SUBSEQUENT VISIBLE AND INFRARED IMAGERY DEPICTS A
NARROW ASH PLUME SPREADING TO THE WEST. THE HEIGHT OF THE ASH IS
ESTIMATED AT FL350 BASED ON AIRCRAFT REPORTS RELAYED BY THE
GUAYAQUIL METEOROLOGICAL WATCH OFFICE AND NUMERICAL WEATHER
PREDICTION MODEL WIND FORECASTS. AT 1415 UTC THE ASH CLOUD EXTENDS
45 KM (24 NMI) TO THE WEST OF THE SUMMIT TO 1.5S 78.8W AND IS 12 KM
(7 NMI) WIDE. 
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TRAJECTORY: ASH IS MOVING TO THE WEST AT 19 KT (35 KPH).
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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.
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THE NEXT STATEMENT WILL BE ISSUED AROUND 01/2030 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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RUMINSKI
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NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"