We have to find out exactly what's going on with the slide. Geologists say it's still moving slowly.

It's moving slowly and the slower-moving the storm, the more unpredictable it always is.

Bone marrow transplant is moving forward slowly,

Now, they know exactly what moving the spoiler down an inch means.

This storm should be taken seriously because it is moving so slowly, ... Whether it has 80 mph wind or 85 (mph) is not really important. What's important here is that you're going to get two days of it. That is what makes it so dangerous because it brings rain, it brings flooding.

Slowly but surely, the expedition is moving ahead towards its goal.