Narrative:

Thunderstorm off end of departure runway. Berge departure off of runway 24 (spl) requires several turns that the captain determined would be too close to thunderstorm. Captain elected to turn left (opposite of SID routing) and told first officer to inform ATC. Controller requested 'how far left do you want to go?' captain responded with, '20 degrees left' and we were cleared as requested. It became necessary to turn more like 60 degrees to stay clear of thunderstorm cell. Due to radio traffic, it was hard to 'break in' to inform ATC that we had turned further than cleared. The dutch controller went ballistic and told us to turn right immediately (right into the thunderstorm). Captain continued to maintain VMC just outside of buildup (still very close to cell). ATC controller continued to insist that we turn right into the thunderstorm. Copilot was not doing a very good job of communicating with ATC, but the situation warranted his attention elsewhere (WX radar, ignition, heavy turbulence, etc) and it was a confusing and busy period. Communication seemed to be a very big factor in this event. The captain could have made his intentions clear before we took off. Crew briefing and CRM were very poor with this crew. I was of the opinion that if we had flown the SID 'as published' we would have avoided the thunderstorm and not upset ATC. My suggestion fell on deaf ears (I guess I'm only the so) frustrating to be ignored like that.

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Original NASA ASRS Text

Title: A DC10-40 ACR FLT TURNS FURTHER AWAY FROM A PRE-APPROVED DEV OFF THE DEP PROC BECAUSE OF TSTM ACTIVITY IN PROX OF EHAM, FO.

Narrative: TSTM OFF END OF DEP RWY. BERGE DEP OFF OF RWY 24 (SPL) REQUIRES SEVERAL TURNS THAT THE CAPT DETERMINED WOULD BE TOO CLOSE TO TSTM. CAPT ELECTED TO TURN L (OPPOSITE OF SID ROUTING) AND TOLD FO TO INFORM ATC. CTLR REQUESTED 'HOW FAR L DO YOU WANT TO GO?' CAPT RESPONDED WITH, '20 DEGS L' AND WE WERE CLRED AS REQUESTED. IT BECAME NECESSARY TO TURN MORE LIKE 60 DEGS TO STAY CLR OF TSTM CELL. DUE TO RADIO TFC, IT WAS HARD TO 'BREAK IN' TO INFORM ATC THAT WE HAD TURNED FURTHER THAN CLRED. THE DUTCH CTLR WENT BALLISTIC AND TOLD US TO TURN R IMMEDIATELY (RIGHT INTO THE TSTM). CAPT CONTINUED TO MAINTAIN VMC JUST OUTSIDE OF BUILDUP (STILL VERY CLOSE TO CELL). ATC CTLR CONTINUED TO INSIST THAT WE TURN RIGHT INTO THE TSTM. COPLT WAS NOT DOING A VERY GOOD JOB OF COMMUNICATING WITH ATC, BUT THE SIT WARRANTED HIS ATTN ELSEWHERE (WX RADAR, IGNITION, HVY TURB, ETC) AND IT WAS A CONFUSING AND BUSY PERIOD. COM SEEMED TO BE A VERY BIG FACTOR IN THIS EVENT. THE CAPT COULD HAVE MADE HIS INTENTIONS CLR BEFORE WE TOOK OFF. CREW BRIEFING AND CRM WERE VERY POOR WITH THIS CREW. I WAS OF THE OPINION THAT IF WE HAD FLOWN THE SID 'AS PUBLISHED' WE WOULD HAVE AVOIDED THE TSTM AND NOT UPSET ATC. MY SUGGESTION FELL ON DEAF EARS (I GUESS I'M ONLY THE SO) FRUSTRATING TO BE IGNORED LIKE THAT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.