Narrative:

A large amount of WX and thunderstorms were in or near the sector. Most or all aircraft were deviating. An medium large transport X was an overflt from sea to dtw at FL330. He was deviating for the WX. Several inbnds to msp were trying to get in on the meinz arrival. Medium large transport Y at FL350 was giving clearance to FL240. Medium large transport Y started to descend and medium large transport X was deviating further south and the C/a went off when the aircraft were about 50 seconds apart. The medium large transport Y was turned about 130 degrees left and expedited on the descent, the medium large transport X was turned left and climbed to approximately FL350.

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Original NASA ASRS Text

Title: RADAR SEPARATION WAS LOST BETWEEN A DESCENDING ACFT AND AN ACFT LEVEL AT FL330.

Narrative: A LARGE AMOUNT OF WX AND TSTMS WERE IN OR NEAR THE SECTOR. MOST OR ALL ACFT WERE DEVIATING. AN MLG X WAS AN OVERFLT FROM SEA TO DTW AT FL330. HE WAS DEVIATING FOR THE WX. SEVERAL INBNDS TO MSP WERE TRYING TO GET IN ON THE MEINZ ARR. MLG Y AT FL350 WAS GIVING CLRNC TO FL240. MLG Y STARTED TO DSND AND MLG X WAS DEVIATING FURTHER S AND THE C/A WENT OFF WHEN THE ACFT WERE ABOUT 50 SECS APART. THE MLG Y WAS TURNED ABOUT 130 DEGS LEFT AND EXPEDITED ON THE DSNT, THE MLG X WAS TURNED LEFT AND CLBED TO APPROX FL350.

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.