Which is TRUE when a high pressure system is...

🔍 Key Concepts

• Northern Hemisphere high pressure systems – wind flows clockwise and outward around the center • Buys Ballot’s Law – with your back to the wind in the Northern Hemisphere, the center of low pressure is to your left and high pressure to your right • Typical weather and wind associated with high pressure (anticyclones): sky conditions, moisture, and wind strength

💭 Think About

• Picture a map with a high pressure center north of you in the Northern Hemisphere. In which direction does the wind circulate around that high? • From your position south of the high, if winds circulate clockwise and outward, what approximate compass direction would the wind come from at your location? • Think about the usual weather in the fair side of a high: are conditions normally hot and moist, or cooler/drier with clearer skies?

✅ Before You Answer

• Verify the circulation direction around a high pressure in the Northern Hemisphere (clockwise vs counterclockwise) • Check from which compass quadrant (N, E, S, W and combinations) the wind would blow at a point south of the high center • Confirm the typical weather under a high pressure system: cloud cover, precipitation, and humidity characteristics

Which is TRUE when a high pressure system is centered north of your vessel in the Northern Hemisphere?

The winds should be brisk

The wind direction is generally easterly

The winds should be from the southwest at your position

You should experience hot, moist, clear weather

🔍 Key Concepts

💭 Think About

✅ Before You Answer