A synoptic weather map is a weather chart reflecting the state of the atmosphere over a large area at a given moment.
Today’s Synoptic Chart
Today’s South African Weather Chart can be seen here.
GRADE 10 RECAP:
Weather elements: temperature, dew-point temperature, cloud cover, wind direction,wind speed and atmospheric pressure.
|Weather Element||Description||How it is measured||Unit of measure||Instrument|
|Temperature||How hot or cold it is||Thermometer||Degrees Celsius (°C)|
|Precipitation||Moisture from the sky||Rain Gauge||Millimetres (mm.)|
|Dew-point temperature||The temperature condensation will take place||Hygrometer.||Degrees Celsius (°C)|
|Cloud cover||The amount of cloud in the sky||Observed by a meteorologist||Oktas - eighths of the sky|
|Wind direction||Where the wind is blowing FROM||Wind Vane||Points of the compass (north, north-west etc), or bearing in degrees|
|Wind speed||How fast the wind is blowing||Anemometer||Knots, or by the Beaufort Scale|
|Atmospheric pressure||The "weight" of the air pushing on the surface of the Earth||Barometer||Hectopascals (although most people know it as millibars)|
Weather conditions: rain, drizzle, thunderstorms, hail and snow, as illustrated on station models.
Most reporting in the 21st century are electronic. Below is the weather for Sutherland in the Northern Cape; the coldest place in South Africa.
Reading and interpreting synoptic weather maps.
An example of a weather forecast
A Synoptic Chart Tutorial
An Australian Synoptic chart example