FVXX21 KWBC 270145
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0145 UTC 27 OCTOBER 1999 BY THE WASHINGTON VAAC
.
TUNGURAHUA 99-035 ECUADOR 1.47S 78.44W
.
BACKGROUND: TUNGURAHUA ECUADOR (1502-08)
SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY..GEOPHYSICAL INSTITUTE AND NATIONAL WEATHER SERVICE
NUMERICAL MODELS
.
ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM.
.
DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 27/0115 UTC SHOWS
THE AREA CONTINUES TO BE OBSCURED BY CLOUDS MAKING DETECTION OF ASH
IMPOSSIBLE.
.
THE QUITO GEOPHYSICAL INSTITUTE THROUGH THE GUAYAQUIL MWO REPORTS
ASH FROM THE VOLCANO AT FL150 MOVING TOWARD THE WEST AT 10KT FROM
THE VOLCANO.
.
TRAJECTORY: NATIONAL WEATHER SERVICE NUMERICAL METEOROLOGICAL MODELS
PREDICT THAT ANY ASH AT FL150 WOULD MOVE TOWARD THE WEST SOUTHWEST
AT 8-12 KTS.
.
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/)
.
OUTLOOK: SEE SIGMETS.
.
THE NEXT STATEMENT WILL BE ISSUED AROUND 27/0800 UTC.
.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
.
NNNN