So it begins:
FVXX01 EGRR 212007
VA ADVISORY
DTG: 20110521/1900Z
VAAC: LONDON
VOLCANO: GRIMSVOTN 1703-01
PSN: N6425 W01720
AREA: ICELAND
SUMMIT ELEV: 1725
ADVISORY NR: 2011/001
INFO SOURCE: ICELANDIC MET OFFICE
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS: PLUME FROM GRIMSVOTN EXPECTED TO 11000M
OBS VA DTG: 21/1900Z
OBS VA CLD: NO VA EXP
FCST VA CLD +6HR: 22/0100Z NO VA EXP
FCST VA CLD +12HR: 22/0700Z NO VA EXP
FCST VA CLD +18HR: 22/1300Z NO VA EXP
RMK: IMO REPORTED POSSIBLE ERUPTION 201105211900Z. IMO
CONFIRMED REPORT AS AIRCRAFT REPORTS VISIBLE WHITE PLUME
OVER VOLCANO AT 15000 TO 18000FT BUT TURNING BLACK AT
BOTTOM, INDICATING PRESENCE OF ASH. ALSO ON IR AND ASH
SATELLITE IMAGERY.
NXT ADVISORY: 201105212200Z=