WEATHER

What you need to know  How to measure and record weather  Depressions and anticyclones  Weather associated with both  Air masses and associated weather  Extreme weather and how it effects humans

Measuring and recording Device What is Measures Units ThermometerTemperature °C or °F Rain Gauge Precipitation mm (or inches) Anemometer Wind Speed Mph or Kph Wind Vane Wind Direction Compass Points Sunshine Recorder Sunshine (duh!) Hours Barometer Air Pressure Millibars

STEVENSON SCREEN Painted 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 Charts ! WHAT DOES IT ALL MEAN?

FRONTS COLD FRONT OCCLUDED FRONT WARM FRONT ISOBARS

Air Movement round a Depression WINDS MOVE ANTI- CLOOCKWISE ROUND A LOW PRESSURE WINDS MOVE CLOCKWISE ROUND A HIGH PRESSURE

DEPRESSIONS  Sometimes is known as Low Pressure.  Will contain a Warm Front and Cold Front  Winds will be strong and move anti- clockwise around a depression.  Brings a period of unsettled weather, wind, rain, heavy showers, cooler temperatures