FVXX21 KNES 030954
VA ADVISORY
DTG: 20091103/0954Z

VAAC: WASHINGTON

VOLCANO: HUILA 1501-05
PSN: N0255 W07603

AREA: COLOMBIA

SUMMIT ELEV: 17602 FT (5365 M)

ADVISORY NR: 2009/071

INFO SOURCE: GOES-12. GFS WINDS. SEISMIC
DETECTION. VAFTAD. PILOT REPORT. 

ERUPTION DETAILS: EXPLOSION AROUND 03/0815Z

OBS VA DTG: 03/0845Z

OBS VA CLD: SFC/FL420 N0329 W07630 - N0315 W07610
- N0243 W07605 - N0241 W07623 - N0313 W07634 -
N0329 W07630 MOV NW 10-15KT 

FCST VA CLD +6HR: 03/1500Z SFC/FL420 N0403 W07649
- N0220 W07641 - N0231 W07718 - N0348 W07735 -
N0403 W07649 

FCST VA CLD +12HR: 03/2100Z SFC/FL420 N0405
W07801 - N0217 W07731 - N0207 W07814 - N0350
W07835 - N0405 W07801 

FCST VA CLD +18HR: 04/0300Z SFC/FL420 N0410
W07852 - N0151 W07831 - N0145 W07922 - N0346
W07939 - N0410 W07852 

RMK: MULTISPECTRAL IMAGERY SHOW VA TO ABOUT FL420
PER CLOUD TOP TEMPERATURE AND FCST WINDS. 
SEISMIC SIGNAL SEEN AND REPORTS OF EXPLOSION
HEARD AROUND THIS TIME.  PILOT REPORTS ALSO
CONFIRMING TIMING AND ASH HEIGHT.  FCST
CONFIDENCE VERY LOW GIVEN DIFFERENCES IN OBSERVED
VS MODEL TRAJECTORY. ...LIDDICK

NXT ADVISORY: WILL BE ISSUED BY 20091103/1600Z

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