FVXX20 KNES 121521
VOLCANIC ASH ADVISORY
ISSUED: 2005DEC12/1521Z   VAAC: WASHINGTON

VOLCANO: COLIMA 1401-04
LOCATION: N1930 W10337   AREA: MEXICO

SUMMIT ELEVATION: 12631 FT (3850 M)

ADVISORY NUMBER: 2005/498

INFORMATION SOURCE: MEXICO CITY MWO. GOES-12. GFS
MODEL WINDS. 

ERUPTION DETAILS: MINOR ASH PUFFS.

OBS ASH DATE/TIME: 12/1445Z

OBS ASH CLOUD: SFC/FL170 N1929 W10340 - N1929
W10340 - N1926 W10338 - N1923 W10341 - N1926
W10344 - N1929 W10340 MOVING SE 15-20 KNOTS.
SFC/FL170 N1851 W10400 - N1841 W10401 - N1841
W10406 - N1841 W10407 - N1850 W10407 - N1851
W10400 MOVING SE 15-20 KNOTS. 

FCST ASH CLOUD +6H: 12/2100Z SFC/FL170 N1833
W10422 - N1830 W10417 - N1818 W10422 - N1820
W10429 - N1833 W10422 

FCST ASH CLOUD +12H: 13/0300Z NO VA EXP.

FCST ASH CLOUD +18H: 13/0900Z NO VA EXP.

REMARKS: MINOR ASH PUFF SEEN ON 1432Z IMAGERY. 
UPON CLOSER INSPECTION, THERE APPEARED TO BE AN
ASH CLOUD FROM A PUFF SOMETIME JUST BEFORE 1115Z. 
THE EARLIER PUFF IS PRESENTLY 56 NMI TO THE
SOUTHEAST OF THE SUMMIT WHILE THE MOST RECENT ONE
IS 8 NMI TO THE SOUTHEAST OF THE SUMMIT.  BOTH
PUFFS ARE PLACED AT FL170 BASED ON APPEARANCE AND
GFS MODEL WINDS AND MOVEMENT OF SOUTHEAST AT 15-20
KTS BASED ON MEASUREMENT FROM SATELLITE IMAGERY
AND MODEL WINDS. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2005DEC12/2115Z

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