ZCZC WA12 211540 UTC JUN 26 COASTAL WARNING ASTRAKHAN 259 VOLGO-CASPIAN CHANNEL 1. CHANNEL DREDGING BY DREDGER NIKOLAY GRICHANOVSKIY ON *TRMWR KM MOVEMENT OF SHIPS ON EAST SIDE CHANNEL 2. CANCEL 145/26 AND THIS PARA= NNNN