Subject: FVCN01 CWAO 201956

FVCN01 CWAO 201956

VA ADVISORY

DTG:                  20080720/1956Z

VAAC:                 MONTREAL

VOLCANO:              OKMOK 1101-29-

PSN:                  N5325 W16807

AREA:                 ALEUTIAN IS

SUMMIT ELEV:          1073M

ADVISORY NR:          2008/014

INFO SOURCE:          OMI, MET PROG, WASH VAAC

AVIATION COLOUR CODE: RED

ERUPTION DETAILS:     HIGH LEVELS OF SO2 WITH POSSIBLE LIGHT ASH

                      EMBEDDED

OBS VA DTG:           20/2000Z

OBS VA CLD:           SFC/FL330 NO VA EXP FL330/FL410 N3639 W13730 -

                      N4601 W12406 - N4806 W10452 - N5017 W08322 - N4

                      903 W04812 - N5207 W04126 - N4718 W04422 - N460

                      7 W05547 - N4536 W06716 - N4654 W07930 - N4359

                      W09211 - N4317 W12343 - N3456 W13542 - N3639 W1

                      3730

FCST VA CLD +6 HR:    21/0200Z SFC/FL330 NO VA EXP FL330/FL410 N3804

                      W13636 - N4730 W11950 - N4726 W08941 - N5032 W0

                      7943 - N4852 W05336 - N4934 W04134 - N4637 W045

                      15 - N4358 W06012 - N4526 W06825 - N4459 W08937

                       - N4535 W11533 - N4245 W12449 - N3613 W13503-

                      N3804 W13636

FCST VA CLD +12 HR:   21/0800Z SFC/FL600 NO VA EXP

FCST VA CLD +18 HR:   21/1400Z SFC/FL600 NO VA EXP

RMK:                  SO2 PLUME SEEN IN VIS AND OMI IMAGERY STRADDLES

                      US/CANADA BORDER. PSBL LIGHT ASH EMBEDDED. VA

                      GRAPHIC AVBL: HTTP://WWW.WEATHEROFFICE.GC.CA

                      /DATA/EER/VAAC/FVCN_MESSAGES (LOWERCASE EXCEPT

                      FOR FVCN)

NXT ADVISORY:         WILL BE ISSUED BY 20080721/0200Z




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