FVXX27 KNES 111311 VA ADVISORY DTG: 20110811/1311Z VAAC: WASHINGTON VOLCANO: USER MESSAGE PSN: XX AREA: XX RMK: THE AIR FORCE WEATHER AGENCY IS ISSUING THIS MESSAGE ON BEHALF OF THE WASHINGTON VAAC. AFWA AND THE WASHINGTON VAAC ARE CONDUCTING A COORDINATED OPERATIONAL BACKUP TEST FROM 11/1300Z - 11/2200Z. PLEASE BE AWARE THAT AFWA WILL ISSUE ANY NECESSARY VOLCANIC ASH ADVISORIES ON BEHALF OF THE WASHINGTON VAAC DURING THIS TIME FRAME.