Weather Map Basics Synoptic charts Quiz

What are the white lines on a weather map called?

• Isobars

• Contours

• Longitudes

• Latitudes

Answer explanation

The white lines on a weather map are called isobars, which connect points of equal atmospheric pressure. They help in visualizing pressure patterns across a region.

What do isobars indicate on a weather map?

• Precipitation

• Atmospheric pressure

• Temperature

• Humidity

Answer explanation

Isobars indicate atmospheric pressure on a weather map, showing areas of high and low pressure.

What does a tightly packed isobar indicate?

• Strong wind

• Light wind

• High temperature

• Low temperature

Answer explanation

A tightly packed isobar indicates strong wind, as the close spacing of isobars signifies a steep pressure gradient, leading to strong winds.

In the southern hemisphere, how does wind flow around a high-pressure system?

• Vertically

• Horizontally

• Anti-clockwise

• Clockwise

Answer explanation

In the southern hemisphere, wind flows around a high-pressure system in an anti-clockwise direction.

What weather conditions are associated with high-pressure systems?

• Cloudy weather

• Settled weather

• Wet weather

• Stormy weather

Answer explanation

High-pressure systems are associated with settled weather conditions, characterized by clear skies and calm conditions.

What does a blue line with triangles on a weather map indicate?

• Warm front

• Occluded front

• Cold front

• Stationary front

Answer explanation

A blue line with triangles on a weather map indicates a cold front.

What is indicated by a red line with semi-circles on a weather map?

• Monsoon trough

• Trough

• Warm front

• Cold front

Answer explanation

A red line with semi-circles on a weather map indicates a warm front, which is the correct choice. Warm fronts are associated with rising warm air and can bring precipitation.

What does a dashed line on a weather map represent?

• High pressure

• Trough

• Warm front

• Cold front

Answer explanation

A dashed line on a weather map represents a trough, which is an elongated area of low pressure. It is associated with unsettled weather conditions.

What is a monsoon trough?

• A boundary between two air masses

• A low-pressure system

• A seasonal wind pattern

• A high-pressure system

Answer explanation

A monsoon trough is a seasonal wind pattern that brings heavy rainfall and is associated with the shift in wind direction during the monsoon season.

What type of weather is typically brought by a monsoon trough?

• Fog

• Snow

• Heavy rain

• Dry weather

Answer explanation

A monsoon trough typically brings heavy rain, making it the correct choice. This weather pattern is characterized by prolonged periods of intense rainfall.