And we think we've got a lot of weather!
Jovian Storm? - what a great name for a comic character!
Wait, I know! First, you orient the ship so your main cargo bay is facing at a 90 degree angle (i.e. perpendicular) to the direction of forward momentum. Your attitude jets are on a separate power supply from your atomic engines, I hope, or else you can do this by rotating the internal gyro. Seal off your cargo bay from the rest of the ship. Then open the cargo bay hatch to expel the air, providing thrust at a right angle from your previous course. This shoves you on a slight diagonal, veering away from the projected point of collision. You miss impact very narrowly. The crew says "Hurray, we're saved!" and everyone wants to have a beer with you. What do you mean, wrong?