1. 6.11: Fronts
Unit 6: Meteorology
March 13, 2012
Sanders

2. ESRT
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Unit 6: Meteorology

3. Fronts
Meteorologists use station models to record and describe weather conditions.
Convection transfers heat through the exchange of hot and cold molecules.
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Unit 6: Meteorology

4. Station Model Each station model is marked by a circle and symbols.
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Unit 6: Meteorology

5. Cloud Cover Cloud cover is represented in this circle.
It represents approximately 75% cover.
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Unit 6: Meteorology

6. Wind Direction Winds are named for the direction they come from.
It is shown here.
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Unit 6: Meteorology

7. The marks here are called feathers.
Wind Speed
The marks here are called feathers.
A long feather means a wind speed of 10 knots.
A short feather means a wind speed of 5 knots.
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Unit 6: Meteorology

8. Temperature 28
Temperature is in degrees Fahrenheit. Notice no symbol is next to the number.
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Unit 6: Meteorology

9. 28 Visibility Visibility is measured in miles.1 2
Visibility is measured in miles.
It is written as a fraction.
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Unit 6: Meteorology

10. Weather Conditions 28 * 1 2 27
Dewpoint is in degrees Fahrenheit. Notice no symbol is next to the number.
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Unit 6: Meteorology

11. * 28 27 .25 Precititation Precipitation is measured in inches.1 2 27
.25
Precipitation is measured in inches.
It is written as a decimal.
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Unit 6: Meteorology

12. Barometric Trend
Pressure is written as a whole number.
The plus sign means it’s rising. 28 *
+19/ 1 2 27
.25
In the United States, air pressure
is measured in millibars.
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Unit 6: Meteorology

13. * 28 196 +19/ 27 .25 Barometric Pressure
If the first number is above 500, put a 9 in front.
Put a decimal in front of last number. 28
196 *
+19/ 1 2 27
.25
If the first number is below 500, put a 10 in front.
Put a decimal in front of last number.
May 21, 2019
Unit 6: Meteorology