FVXX21 KWBC 071900
VOLCANIC ASH ADVISORY
ISSUED 1900 UTC 07 SEP 2000 BY THE WASHINGTON VAAC
.
TUNGURAHUA 00-1049        ECUADOR 0128S 7826W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. 07/1800 HOUR WIND FORECAST FROM THE
07/1200 UTC AVIATION MODEL. GEOPHYSICAL INSTITUTE IN QUITO.
.
ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS.
.
DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1745 UTC SHOWS LOW AND
MID LEVEL CLOUDS OVER THE VOLCANO MAKING IT DIFFICULT TO
DETECT ANY ASH. THE GEOPHYSICAL INSTITUTE REPORTS ASH OVER THE
VOLCANO TO FL260 AT 07/1610 UTC. ANOTHER OBSERVATION AT
07/1838 UTC REPORTS ASH TO FL220.
.
TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH FROM THE SUMMIT
TO FL260 WOULD MOVE TOWARDS THE WEST SOUTHWEST AT 10 TO 15
KTS.
.
OUTLOOK: SEE SIGMETS.
.
THE NEXT MESSAGE WILL BE ISSUED BY 08/0100 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.
.
KARST
.
NNNN