What is a one-sentence summary of the following article?
Wind is caused when air moves from a high-pressure area to a low-pressure area. Since weather moves in from the west, westerly winds indicate good weather because they suggest the bad weather is already to your east. Easterly winds suggest that the bad weather is coming toward you. You can use grass or flower petals to determine the direction of the wind. Throw your grass or flower petals into the wind and watch the way that it blows or falls. You can also detect the direction of the wind by wetting your finger and holding it out. The side of your finger that gets cool will tell you from which direction the wind is blowing. The air pressure determines what direction the smoke will go. In high pressure, the smoke will go directly up into the air. If the pressure is low, it will spiral back down around the fire. If you see the smoke spiraling back down, bad weather is likely on the way. When smoke spirals downwards, it means that bad weather is very close. The low-pressure system is already in place over your area. Before a storm, the low-pressure system can push out the area's normal wind patterns. This creates a temporary calm before the storm begins. You'll notice a lack of wind, which creates a stillness over the area. If you're near water, it will be calm and still, as well. This calm indicates a coming storm. At this point, you should be able to observe other signs of a storm, such as dark clouds. Close your eyes and smell the air. Smells become wet right before a storm, making them stronger. Before a storm, you should also notice a compost smell as plants release their waste. If you start to smell a compost scent, it likely means that a storm is coming. If you are near a swamp, you will likely smell swamp gases right before a storm. Swamp gas smells like rotten eggs because it comes from decaying vegetation. High humidity often precedes a storm, so watch for signs of high humidity, such as frizzy hair, curling leaves, and swollen wood. These signs can tell you that a storm is on the way. Pine cones can also tell you if it's humid because they will stay closed if the humidity is high but will open if the air is dry. If you live in an area that always has high humidity, rely on other observations to predict the weather. If you're near the ocean, look for ocean swells. These swells can be caused by winds that are blowing a storm system from out over the sea. This could mean that rain is on the way.

Summary:
Detect the direction of the wind. Watch smoke from a fire. Watch for calm conditions. Take a deep breath. Check for humidity. Observe ocean swells.