WEATHERWEATHER

What you need to knowWhat you need to know

How to measure and record weatherHow to measure and record weather Depressions and anticyclonesDepressions and anticyclones Weather associated with bothWeather associated with both Air masses and associated weatherAir masses and associated weather Extreme weather and how it effects humansExtreme weather and how it effects humans

Measuring and recordingMeasuring and recording

DeviceDevice What is What is MeasuresMeasures

UnitsUnits

ThermometerThermometer TemperatureTemperature °C°C or °F or °F

Rain GaugeRain Gauge PrecipitationPrecipitation mm (or inches)mm (or inches)

AnemometerAnemometer Wind SpeedWind Speed Mph or KphMph or Kph

Wind VaneWind Vane Wind DirectionWind Direction Compass PointsCompass Points

Sunshine Sunshine RecorderRecorder

Sunshine (duh!)Sunshine (duh!) HoursHours

BarometerBarometer Air PressureAir Pressure MillibarsMillibars

STEVENSON SCREENSTEVENSON SCREENPainted White to Reflect the heat from the sun

Placed on earth or grass, which absorbs heat

Slatted Slides allows air to pass through keeping thermometers cool

On a stilt to prevent reflection of heat of the surface.

Synoptic ChartsSynoptic Charts

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WHAT DOES IT ALL MEAN?

FRONTSFRONTS

COLD FRONT

OCCLUDED FRONT

WARM FRONT

ISOBARS

Air Movement round a DepressionAir Movement round a Depression

WINDS MOVE ANTI-CLOOCKWISE ROUND A LOW PRESSURE

WINDS MOVE CLOCKWISE ROUND A HIGH PRESSURE

DEPRESSIONSDEPRESSIONS

Sometimes is known as Low Pressure.Sometimes is known as Low Pressure. Will contain a Warm Front and Cold FrontWill contain a Warm Front and Cold Front Winds will be strong and move anti-Winds will be strong and move anti-

clockwise around a depression.clockwise around a depression. Brings a period of unsettled weather, wind, Brings a period of unsettled weather, wind,

rain, heavy showers, cooler temperaturesrain, heavy showers, cooler temperatures