Narrative:

Climbing out on lga 8 departure at 10000 ft MSL, cleared to 12000 ft. Controller gave us a turn to 220 degrees, then started calling 'ATR' traffic to us. There was a broken layer of clouds from 9000-11000 ft. Controller apparently saw a conflict and gave us a turn farther left to 180 degrees while calling traffic, but we were IMC and couldn't see the ATR aircraft. We received an RA with a 1500 FPM climb, which we complied with. Traffic was at same altitude and passed within 1/2 mi. We never saw the traffic and level at 12000 ft and notified controller of the RA. The controller said turn wasn't tight enough, but I would say it was just bad controling with the IMC contributed to the near miss.

Google
 

Original NASA ASRS Text

Title: AN MD88 FLC RECEIVED A TCASII RA ON CLB FROM LGA.

Narrative: CLBING OUT ON LGA 8 DEP AT 10000 FT MSL, CLRED TO 12000 FT. CTLR GAVE US A TURN TO 220 DEGS, THEN STARTED CALLING 'ATR' TFC TO US. THERE WAS A BROKEN LAYER OF CLOUDS FROM 9000-11000 FT. CTLR APPARENTLY SAW A CONFLICT AND GAVE US A TURN FARTHER L TO 180 DEGS WHILE CALLING TFC, BUT WE WERE IMC AND COULDN'T SEE THE ATR ACFT. WE RECEIVED AN RA WITH A 1500 FPM CLB, WHICH WE COMPLIED WITH. TFC WAS AT SAME ALT AND PASSED WITHIN 1/2 MI. WE NEVER SAW THE TFC AND LEVEL AT 12000 FT AND NOTIFIED CTLR OF THE RA. THE CTLR SAID TURN WASN'T TIGHT ENOUGH, BUT I WOULD SAY IT WAS JUST BAD CTLING WITH THE IMC CONTRIBUTED TO THE NEAR MISS.

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.