When is the phenomenon known as a "seiche"...

🔍 Key Concepts

• Seiche: a standing wave oscillation in an enclosed or partially enclosed body of water (like a Great Lake) • Effect of strong, sustained winds and sudden changes in wind on water level setup at one end of a lake • Difference between tidal effects and meteorological (weather/wind) effects on Lake Erie

💭 Think About

• Think about what physical mechanism can quickly pile water up on one end of Lake Erie, then let it slosh back and forth like water in a bathtub. • Ask yourself which answer choices involve regular, predictable astronomical cycles versus sudden, short-term weather or wind events. • Consider how the shape and orientation of Lake Erie (long, shallow, oriented SW–NE) would respond to strong winds blowing along its length and then suddenly easing.

✅ Before You Answer

• Verify whether tidal forces (Moon/Sun alignment) or wind/pressure changes are the main driver of seiches on the Great Lakes. • Check which option involves a sudden change after strong winds in a direction that can push water toward one end of Lake Erie. • Eliminate any choice that limits seiches to a particular season or to a specific type of front without a strong physical reason tied to water level oscillations.

When is the phenomenon known as a "seiche" most likely to occur on Lake Erie?

When the Moon and Sun are in alignment

When strong winds from the Northeast suddenly diminish

Only during the months of May through August

During the passage of a rapidly moving warm front

🔍 Key Concepts

💭 Think About

✅ Before You Answer