151648Z APR 26
NAVAREA XII 262/26.
NORTH PACIFIC.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING 
   191341Z TO 191619Z APR, ALTERNATE 1341Z TO 1619Z
   DAILY 20 THRU 22 APR IN AREA BOUND BY
   46-59.00N 152-58.00W, 48-04.00N 152-45.00W,
   47-48.00N 150-38.00W, 46-51.00N 144-48.00W,
   46-16.00N 144-59.00W, 46-42.00N 148-57.00W.
2. CANCEL NAVAREA XII 256/26.
3. CANCEL THIS MSG 221719Z APR 26.