Weather Map
description
Transcript of Weather Map
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
Cloud Cover
Wind Speed and Direction
Air Pressure
•Measured in millibars (mbs) or Kilopascals (kPa)• Sea level ~ 1013.2 mbs or 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 = high or 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