FVXX20 KWBC 181413
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC18/1413Z VAAC: WASHINGTON
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VOLCANO: POPOCATEPETL 1401-09
LOCATION: 1901N 9837W AREA: MEXICO
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SUMMIT ELEVATION: 17930 FT (5465 M)
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ADVISORY NUMBER: 2000/192
INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY.
6 HOUR WIND FORECAST FROM THE 18/0600Z AVIATION MODEL. 12Z
UPPER AIR DATA FROM MEXICO CITY. POPOCATEPETL CAMERA.
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ERUPTION DETAILS: ERUPTION BEGAN ABOUT 17/1250Z.
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DETAILS OF ASH CLOUD: POPOCATEPETL CAMERA THROUGH 1407Z SHOWED
A NARROW ASH AND STEAM PLUME RISING FROM THE CRATER.
MULTISPECTRAL IMAGERY SUGGESTED AN ASH CLOUD 35 KM (19 NMI) IN
DIAMETER CENTERED NEAR 1906N9826W. THIS ASH CLOUD WAS
ESTIMATED TO BE UP TO FL300.
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RESIDUAL ASH FROM LAST EVENINGS ERUPTIONS WAS ALSO DETECTED
WELL TO THE SOUTHWEST OF THE SUMMIT AND WAS BOUNDED BY
1843N10151W 1839N10136W 1741N10137W 1721N10201W 1734N10225W
1829N10210W 1843N10151W. THIS RESIDUAL AREA OF ASH WAS
ESTIMATED TO BE BETWEEN FL150 AND FL200.
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TRAJECTORY: ASH NEAR THE SUMMIT TO FL300 WOULD MOVE TOWARDS
THE EAST NORTHEAST AT 15 TO 20 KNOTS WHILE THE RESIDUAL ASH
WELL TO THE SOUTHWEST OF THE SUMMIT BETWEEN FL150 AND FL200
WOULD MOVE TOWARDS THE WEST AT 5 TO 10 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 18/2000Z.
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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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TURK/RUMINSKI
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NNNN"Attached Graphic Map Depicting Ash"
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