ACR DISPATCH DEPT SENDS WRONG RELEASE TO ACR ABOUT TO DEPART ANC; AK. DEST ARPT INCORRECT RELATIVE TO WX RPT FORECAST.

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ANC-SEA FLT. SEA BELOW FORECASTED MINIMUMS. FLT REPLANNED TO DEST; PDX. COMPUTER REPROGRAMMED TO SHOW ABOVE. INCORRECT RELEASE SENT INDICATING DISPATCH TO SEA. MAIN CAUSES WERE RUSH TO RESEND NEW RELEASE. CONFUSION ON THE PART OF THE CTL DEPT AS TO WHAT LEGALLY REQUIRED. IN THE RUSH AND PRESSURE TO GET FLT OUT; CORRECT RELEASE NOT SENT. THE DISPATCHER INSTRUCTED THE OPS MGR TO CREATE A NEW FLT NON-STOP ANC-PDX. (CANCELING THE ANC-SEA SEGMENT.) WE WOULD PLAN ON AN LSDA (LNDG SUBJECT TO DECISION AT ARR OVER STATION) SEA. THE OPS MGR TRIED SEVERAL TIMES TO BUILD THE FLT (AS ABOVE) IN THE COMPUTER. DURING THIS TIME SEVERAL OTHER PROBS AROSE FOR THE DISPATCHER CREATING A VERY RUSHED ATMOSPHERE. SEVERAL FLT PLANS WERE CREATED FOR THE ANC DEP INCLUDING SEA AND PDX FLTS. ADDITIONALLY; SEVERAL SUGGESTIONS ON HOW TO SOLVE THE PROB WERE MADE BY OTHER DISPATCHERS AND THE PLT. IN THE RUSH; AN INCORRECT RELEASE WAS SENT SHOWING THE SCHEDULED SEA DEST AS THE RELEASED SEGMET. IN THE RUSH TO GET CAUGHT UP (IT WAS ALSO SHIFT CHANGE) THE ERROR WAS NOT CAUGHT.