FVXX20 KWBC 281825       
VOLCANIC ASH ADVISORY
ISSUED: 2001APR28/1825Z   VAAC: WASHINGTON
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VOLCANO: TUNGURAHUA   1502-08
LOCATION: 0128S 7826W   AREA: ECUADOR
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SUMMIT ELEVATION: 16480 FT (5023 M)
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ADVISORY NUMBER: 2001/57
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INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY.  WIND
FORECAST FROM THE AVIATION MODEL. GUAYAQUIL METEOROLOGICAL WATCH
OFFICE SIGMET. GEOPHYSICAL INSTITUTE REPORT
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ERUPTION DETAILS: POSSIBLE ASH EMISSION AT 28/1730Z.
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DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTED SEISMIC
ACTIVITY INDICATING A BRIEF ERUPTION OF THE TUNGURAHUA VOLCANO AT
28/1730Z. ASH WAS NOT SEEN BY THE GEOPHYSICAL INSTITUTE OR IN
SATELLITE IMAGERY DUE TO EXTENSIVE CLOUDS. ASH HEIGHT IS NOT KNOWN.  

TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH FROM THE SUMMIT
TO FL230 WOULD MOVE TOWARDS THE WEST AT 20 TO 25 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THIS IS THE ONLY ADVISORY ON THIS EVENT.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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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