How to Use a Baseplate Compass in Overcast Conditions Successfully?

Using Shadows to Estimate Direction

In overcast conditions, shadows can be used to estimate direction. Find a vertical stick or object, and wait for the sun to break through the clouds. Mark the end of the shadow with a small rock or stick. Wait for the sun to move, and mark the new end of the shadow. Draw a line between the two marks, and it will roughly indicate south. This technique can be used to estimate direction, but it’s not always accurate.

Using the Compass’s Orienting Arrow

To use the compass’s orienting arrow to align with the sun’s shadow, hold the compass level and place the orienting arrow on the sun’s shadow. Adjust the compass’s bezel until the direction-of-travel arrow points towards the direction you want to go. This technique requires a clear view of the sun’s shadow, so find a suitable location with minimal obstruction. Use the compass’s orienting arrow to align with the sun’s shadow, and then use the compass’s magnetic needle to determine your direction.

Identifying Landmarks

In overcast conditions, it’s essential to identify landmarks such as power lines, roads, or ridges to use as a reference point. These features can be used to help determine direction, even in the absence of a clear view of the sun. Use the compass to take a bearing on the landmark, and then use the compass’s magnetic needle to determine your direction relative to the landmark. By combining these techniques, you can use a baseplate compass successfully in overcast conditions.