Probes?

O'Conner raised an eyebrow at the idea of piloted bomb, from the man that wanted a skeleton crew only minutes before. "That might work sir but you would need an instance detonation not a cascade failure. The warp bubble would collapse before the warp core safety features would fail.

I believe a better choice would be class 5 probes. The effects of the storm should hide them well enough and we can put a detonation charge on them without endangering starfleet pilots.