FVXX21 KWBC 131730
VOLCANIC ASH ADVISORY
ISSUED 1730 UTC 13 SEP 2000 BY THE WASHINGTON VAAC
.
TUNGURAHUA 00-1073        ECUADOR 0128S 7826W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. 13/1800 UTC UPPER WINDS FORECAST FROM
THE 13/0600 UTC AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN
QUITO.
.
ERUPTION DETAILS: OCCASIONAL STEAM AND ASH EMISSIONS.
.
DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1715 UTC DID NOT
INDICATE THE PRESENCE OF ASH DUE TO BROKEN TO OVERCAST MID AND
HIGH LEVEL CLOUDS OBSCURING THE VIEW OF THE VOLCANO. THE
GEOPHYSICAL INSTITUTE REPORTS THAT THERE HAVE BEEN FEW ASH
EMISSIONS BUT THE VOLCANO HAS BEEN VERY QUIET IN THE PAST 24
HOURS. THE VOLCANO REMAINS ACTIVE AND COULD PRODUCE AN ASH
PLUME AT ANYTIME.
.
TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR
SUMMIT LEVEL TO MOVE WEST NORTHWEST AT 15 TO 20 KNOTS.
.
OUTLOOK: SEE SIGMETS.
.
THE NEXT MESSAGE WILL BE ISSUED BY 13/2330 UTC.
.
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/)
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
HUGHES
.
NNNN