The DAMS driver set the pace during the first runs of the morning, but the session was halted for the first time just past the halfway mark as the fog that had started to clear just before the session became thicker.
After a 30-minute delay qualifying was restarted, but five minutes later - just as the majority of cars headed out for their second runs - it was stopped again and the decision was taken to abandon the session.
That left Magnussen on pole ahead of championship runner-up Stoffel Vandoorne (Fortec), with Arthur Pic and Will Stevens on the second row for AV and P1/Strakka respectively.
Draco's Nico Muller and Christopher Zanella's ISR machine were next up, while behind them Carlos Sainz Jr, Norman Nato, Nigel Melker and Will Buller completed the top 10.
Red Bull junior Antonio Felix da Costa could only manage the 13th-fastest lap on his first run so the Arden Caterham driver will start on the seventh row.
Pos Driver Team Time Gap
1. Kevin Magnussen DAMS 1m31.588s
2. Stoffel Vandoorne Fortec 1m31.705s +0.117s
3. Arthur Pic AV 1m31.771s +0.183s
4. Will Stevens P1/Strakka 1m31.886s +0.298s
5. Nico Muller Draco 1m31.949s +0.361s
6. Christopher Zanella ISR 1m31.974s +0.386s
7. Carlos Sainz Jr Zeta 1m32.015s +0.427s
8. Norman Nato DAMS 1m32.054s +0.466s
9. Nigel Melker Tech 1 1m32.128s +0.540s
10. Will Buller Zeta 1m32.157s +0.569s
11. Marlon Stockinger Lotus 1m32.165s +0.577s
12. Oliver Webb Fortec 1m32.284s +0.696s
13. Antonio Felix da Costa Arden Caterham 1m32.316s +0.728s
14. Lucas Foresti SMP/Comtec 1m32.372s +0.784s
15. Sergey Sirotkin ISR 1m32.444s +0.856s
16. Marco Sorensen Lotus 1m32.483s +0.895s
17. Pietro Fantin Arden Caterham 1m32.538s +0.950s
18. Zoel Amberg Pons 1m32.720s +1.132s
19. Mikhail Aleshin Tech 1 1m32.887s +1.299s
20. Matias Laine P1/Strakka 1m32.903s +1.315s
21. Andre Negrao Draco 1m32.921s +1.333s
22. Nikolay Martsenko Pons 1m33.003s +1.415s
23. Daniil Move SMP /Comtec 1m33.034s +1.446s
24. Carlos Huertas Carlin 1m33.475s +1.887s
25. Yann Cunha AV 1m33.761s +2.173s
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