FVXX20 KNES 121941 VA ADVISORY DTG: 20110212/1941Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 PSN: N1446 W09133 AREA: GUATEMALA SUMMIT ELEV: 12375 FT (3772 M) ADVISORY NR: 2011/018 INFO SOURCE: GOES-13. INSIVUMEH. ERUPTION DETAILS: NO ERUPTION HAS OCCURRED RMK: THE OBSERVATORY REPORTED A WEAK PYROCLASTIC FLOW THIS MORNING THAT RESULTED IN A LITTLE VA TO FL110 THAT MOVD SW. THE OBSERVATORY SUGGESTS THAT LARGER PYROCLASTIC FLOWS ARE POSSIBLE OVER THE NEXT FEW DAYS. ...SWANSON NXT ADVISORY: WILL BE ISSUED DAILY UNTIL THE IMMINENT THREAT HAS PASSED OR SOONER IF AN ERUPTION OCCURS. NNNN