FVXX20 KNES 041539
VA ADVISORY
DTG: 20080404/1534Z

VAAC: WASHINGTON

VOLCANO: TUNGURAHUA 1502-08
PSN: S0128 W07826

AREA: ECUADOR

SUMMIT ELEV: 16480 FT (5023 M)

ADVISORY NR: 2008/331

INFO SOURCE: GOES-12. GFS WINDS. GUAYAQUIL SIGMET

ERUPTION DETAILS: ONGOING EMISSIONS

OBS VA DTG: 04/1445Z

OBS VA CLD: SFC/FL260 S0120 W07808 - S0136 W07803
- S0137 W07807 - S0128 W07826 - S0120 W07808 MOV
E 5KT 

FCST VA CLD +6HR: 04/2100Z SFC/FL260 S0121 W07817
- S0146 W07804 - S0143 W07822 - S0127 W07826 -
S0121 W07817 

FCST VA CLD +12HR: 05/0300Z SFC/FL260 S0114
W07828 - S0133 W07812 - S0144 W07826 - S0125
W07840 - S0114 W07828 

FCST VA CLD +18HR: 05/0900Z 

RMK: FAINT TO MODERATE VA EXTENDS FROM SUMMIT
TOWARD EAST. VERY LIGHT WINDS AND RAPID
CHANGE IN DIRECTION CREATES HIGH FCST UNCERTAINTY 
AND IS THE REASON FOR NO 18 HR FCST. RECENT 
SIGMETS CITE PIREPS OF FL260 VA.

NXT ADVISORY: WILL BE ISSUED BY 20080404/2130Z

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