FVXX21 KNES 311125
VA ADVISORY
DTG: 20150731/1125Z

VAAC: WASHINGTON

VOLCANO: RUIZ 351020
PSN: N0453 W07519

AREA: COLOMBIA

SUMMIT ELEV: 17457 FT (5321 M)

ADVISORY NR: 2015/037

INFO SOURCE: GOES-EAST. GFS WINDS. SEISMIC
DETECTION. VOLCANO WEB CAMERA. 

ERUPTION DETAILS: BRIGHT HOTSPOT IN SAT IMAGERY.

OBS VA DTG: 31/1045Z

OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE
DATA WINDS SFC/FL200 110/15KT

FCST VA CLD +6HR: 31/1700Z 

FCST VA CLD +12HR: 31/2300Z 

FCST VA CLD +18HR: 01/0500Z 

RMK: NO ASH DETECTED IN SAT IMAGERY. A BRIGHT
HOTSPOT HAS BECOME A WEAK HOTSPOT OVER PAST HOUR
BUT NO ASH DETECTED IN MULTISPECTRAL SAT IMAGERY.
SEISMIC SHOWED VERY BRIEF SIGNAL. MAY HAVE BEEN A
HOT GAS RELEASE.  ...SWANSON

NXT ADVISORY: NO FURTHER ADVISORIES