Predicting the Weather Weather Forecasting A weather forecast

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Predicting the Weather

Predicting the Weather

Weather Forecasting • A weather forecast is a prediction of the weather. • You

Weather Forecasting • A weather forecast is a prediction of the weather. • You use weather forecasts to decide what to wear each day and what activities you can participate in. • Scientists use tools to measure the current weather to help make their predictions about future weather.

Weather Maps • Weather maps can show what the weather was like in a

Weather Maps • Weather maps can show what the weather was like in a place on a certain day. • Scientists use data from weather stations all over the world to create weather maps.

Weather Maps and Symbols Click the link below to see an explanation of weather

Weather Maps and Symbols Click the link below to see an explanation of weather maps: https: //www. youtube. com/watch ? v=9 NZz-Eeve. J 8

Air Masses • Weather maps show the movement of air masses. An air mass

Air Masses • Weather maps show the movement of air masses. An air mass is a large body of air with about the same temperature and humidity throughout. • There are 4 basic types: – Cold and Dry - Warm and Dry – Cold and Humid - Warm and Humid

Fronts • Weather Maps also show fronts. A front is a place where 2

Fronts • Weather Maps also show fronts. A front is a place where 2 different air masses meet. Click below to learn more about air masses and fronts: http: //studyjams. scholasti c. com/studyjams/sci ence/weather-andclimate/air-masses-andfronts. htm

Cold Front • Cold air mass bumps against warm air mass • Strong storms

Cold Front • Cold air mass bumps against warm air mass • Strong storms happen here (thunderstorms in warm weather, snowstorms in winter) • Causes temperature in an area to drop. Warm Front Stationary Front Occluded Front • Warm air mass • Forms when 2 air • An occluded front meets colder air masses meet and is a combination of mass and rises over stop moving two fronts that it • Bring clouds and form when a cold • Stratus clouds form precipitation front catches up which often bring lasting longer and overtakes a rain because air masses warm front. • Causes are not moving temperature in an area to rise

Air Pressure • Air pressure is measured with a barometer. • Low air pressure

Air Pressure • Air pressure is measured with a barometer. • Low air pressure usually brings rainy or stormy weather. • High air pressure usually brings fair weather.

Weather Patterns in the United States • In the United States, weather usually moves

Weather Patterns in the United States • In the United States, weather usually moves from WEST to EAST. • Rain forming over the Pacific Ocean moves east over California and weather forming over the middle of the U. S. often moves towards North Carolina and other eastern states within days. WEST to EAST

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Topic 10 Weather Analysis Forecasting Predicting Severe WeatherTopic 10 Weather Analysis Forecasting Predicting Severe Weather