1. Aim: What are station models?
Do Now: Why would meteorologists use a station model to represent data rather then writing it all over a map.

2. I. Station Models
- Use symbols to represent weather conditions in selected locations.

3. ESRT Page 13

4. A. Temperature
upper left corner (in degrees Fahrenheit).

5. B. Dew Point
lower left corner (in degrees Fahrenheit).

6. C. Winds The stick that comes off the circle is the "Wind Barb".
The barb indicates the winds direction and speed.

7. Where is this wind coming from? Where is it blowing towards?
Direction
- barbs point in the direction where the wind is coming from.
W E N S
Where is this wind coming from? Where is it blowing towards?

8. 2) Speed
short feather = 5 knots (written in the middle)
long feather = 10 knots
If only circle is plotted, the winds are calm.
- Wind speed is written in the units of knots (knt), a nautical speed. (for fluids)
1 Knot = 1.15 mph

9. D. Pressure
Upper right corner in coded form. They need to be converted
Rules for converting pressure:
500 and Higher
1. Put 9 in front
2. Move decimal one to left
Less Than 500
1. Put 10 in front

10. E. Present Weather Left side of circle (Symbol on ESRT p.13)
Air Mass abbreviations
Present weather
Front Symbols

11. F. Cloud Cover
The circle indicates the percent of cloud cover observed at the time.
Percent of circle filled = the percent of the sky filled with clouds

12. Closure:
Obtain a Station Models worksheet from the front of the room. Use the rules at the top of the sheet and convert all the pressures on the sheet.