FVXX20 KWBC 131430
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC13/14300Z    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: 2000/168
                                                              
INFORMATION SOURCE: GOES-8 VISIBLE ... INFRARED AND
MULTISPECTRAL IMAGERY. MEXICO CITY MWO. CENAPRED CAMERA. 
1200Z MEXICO CITY UPPER AIR SOUNDING.
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ERUPTION DETAILS: CURRENT VENTING OF ASH. ERUPTION AT 0645Z
ERUPTION AT 2207Z.
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DETAILS OF ASH CLOUD: VISIBLE SATELLITE IMAGERY THROUGH 1345Z
SHOWS A DISTINCT NARROW PLUME TO THE NORTHEAST EMANATING FROM
THE VOLCANO.  IN ADDITION THE CENAPRED CAMERA CONFIRMS THIS
WITH SOME FAIRLY STRONG VENTING OF THE VOLCANO. THE RESULTING
PLUME IS ESTIMATED TO BE BELOW FL270 AND EXTENDS 194 KM (105
NMI) FROM THE SUMMIT TO 2018N 9730W AND IS 93 KM (50 NMI) WIDE
AT THE WIDEST POINT.
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ASH FROM THE PREVIOUS ERUPTIONS ARE BECOMING MORE DIFFICULT TO
DISCERN IN MULTISPECTRAL IMAGERY.  WHAT CAN BE SEEN EXTENDS
FROM 2226N 9331W TO 2359N 9138W AND IS 103KM (56 NMI) WIDE.
THIS AREA OF ASH IS ESTIMATED TO BE AT FL300.  ANOTHER AREA
ESTIMATED AT UP TO FL270 IS ROUGHLY 54KM (29NMI) IN DIAMETER
CENTERED ON 1945N 9641W.
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TRAJECTORY: FROM THE SUMMIT TO FL270 NORTHEAST AT 10 TO 15
KNOTS. ASH FROM FL270 TO FL300 EAST NORTHEAST AT UP TO 25
KNOTS.  
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 13/2030Z.

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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NNNN    
"Attached Graphic Map Depicting Ash" 

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