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Weather Map. Reading a Weather Map. Meteorologists get information from weather stations. Reading a Weather Map. Weather stations transmit info in symbols. Reading a Weather Map. Symbols tell of: Temperature Cloud cover Wind speed and direction Air pressure. Reading a Weather Map.
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Reading a Weather Map • Meteorologists get information from weather stations
Reading a Weather Map • Weather stations transmit info in symbols
Reading a Weather Map • Symbols tell of: • Temperature • Cloud cover • Wind speed and direction • Air pressure
Air Pressure • Measured in millibars (mbs) or Kilopascals (kPa) • Sea level ~ 1013.2 mbsor 101.32 kPa
Air Pressure • If 1st number is less than 5; add 10 • If 1st number is greater than 5; add 9
Air Pressure • Areas of significantly HIGHER pressure = highor anticyclone • Weather has prolonged calm, clear skies – winds swirl outward
Air Pressure • Areas of significantly LOWER pressure = low or cyclone or depression • Weather is stormy with winds circulating inward
Weather Map • Like topographic maps • Pressure shown using isobars
Weather Map • Closer the isobars, the faster the change in pressure • Greater wind
Fronts • Cold Front • Warm Front • Stationary Front • Occluded Front