Volcanic Ash Advisory from London

VA ADVISORY
DTG: 20161213/1200Z
VAAC: LONDON
VOLCANO: KATLA 372030
PSN: N6338 W01905
AREA: ICELAND
SUMMIT ELEV: 1490M
ADVISORY NR: 2016/003
INFO SOURCE: ICELANDIC MET OFFICE
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: EXERCISE - ERUPTION IS ONGOING. IMO
ESTIMATE PLUME HEIGHT 12KM
OBS VA DTG: 13/1200Z
OBS VA CLD: SFC/FL200 N6250 W02031 - N6654 W02200 - N6702
W01239 - N6309 W01753 - N6250 W02031 FL200/350 N6254
W01930 - N6748 W01744 - N6740 W00934 - N6649 W00947 -
N6254 W01930 FL350/550 N6305 W01914 - N6558 W01911 -
N6800 W01334 - N6615 W01252 - N6305 W01914
FCST VA CLD +6HR: 13/1800Z SFC/FL200 N6259 W01906 - N6733
W02653 - N6951 W02033 - N6850 E00055 - N6706 E00013 -
N6259 W01906 FL200/350 N6501 E00659 - N6304 W01911 -
N6735 W01938 - N7019 W01013 - N7015 E00516 - N6501 E00659
FL350/550 N6306 W01932 - N6646 W01938 - N6959 W01127 -
N6956 E00042 - N6820 E00034 - N6306 W01932
FCST VA CLD +12HR: 14/0000Z SFC/FL200 N6002 E01122 -
N6303 W02053 - N6857 W02945 - N7142 W02129 - N6959 E01236
- N6002 E01122 FL200/350 N5751 E01347 - N6319 W02055 -
N7131 W01703 - N7127 E01125 - N6542 E01554 - N5751 E01347
FL350/550 N6550 E01334 - N6257 W01936 - N6943 W02002 -
N7132 W00805 - N6914 E01109 - N6550 E01334
FCST VA CLD +18HR: 14/0600Z SFC/FL200 N5244 E01752 -
N6315 W02130 - N7441 W02321 - N7430 W01206 - N7006 E01643
- N5244 E01752 FL200/350 N5043 E02154 - N6256 W02125 -
N7416 W01732 - N7302 E01132 - N6655 E01942 - N5043 E02154
FL350/550 N6146 E01720 - N6308 W02037 - N7142 W01934 -
N7335 W00541 - N6739 E02035 - N6146 E01720
RMK: EXERCISE - T+0 CONFIDENCE IS LOW. PLUME IS MOVING NE
AT 55KT. DUE TO BAD WEATHER CONDITIONS DATA FROM RADER IS
NOT CLEAR. SATELLITE IMAGERY SHOWS AREA IS OBSCURED BY
THICK METEOROLOGICAL CLOUD. SEE ANNOTATED SATELLITE
IMAGERY FOR DETAILS. EXERCISE.
NXT ADVISORY: NO LATER THAN 20161213/1830Z
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