1. What do all these symbols mean?
Reading a weather map

2. Surface observation symbols or weather station symbols
Meteorologists plot weather data collected from hundreds of weather "stations" on a chart or map , 54
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3. , 54 105 48 Temperature in degrees Fahrenheit.
Temperature is defined as a measure of the average kinetic energy (or speed) of the molecules in the air. , 54
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4. Dew Point
Dew points indicate the amount moisture in the air.
When the dew point temperature and air temperature are equal, the air is said to be saturated.
Dew point temperature is NEVER GREATER than the air temperature. , 54
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5. Weather Conditions , 54
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6. Barometric Pressure
If reported value greater than 500: Initial 9 is missing. Place it on left, then divide by 10. For example: 827 becomes mb.
If reported value less than 500: Initial 10 is missing. Place it on left, then divide by 10. For example (as in above diagram): 027 becomes mb. , 54
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Pressure reported in millibars (mb)

7. Cloud Cover , 54
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8. Wind barb – wind direction
Wind barbs point in the direction "from" which the wind is blowing. In the case of the diagram, the orientation of the wind barb indicates winds from the Northeast. , 54
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9. , 54 105 48 Wind barb – wind speed 1 Knot = 1.15 Miles Per Hour (MPH)
Each short barb represents 5 knots, each long barb 10 knots. A long barb and a short barb is 15 knots, simply by adding the value of each barb together (10 knots + 5 knots = 15 knots).
If only a station circle is plotted, the winds are calm. , 54
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10. Sample weather map