1. Interpreting Information Shown at a Weather Station
Station Models
Interpreting Information Shown at a Weather Station
Mr. Fuentes
Regents Earth Science

2. Weather Stations Collect Data All over the U. S
Weather Stations Collect Data All over the U.S., but how can we summarize all of this information on a weather map?

3. How can we represent all of these weather variables at one geographic location? The Standard Station Model:

4. How Do We Decode Pressure on a Station Model?
1.)Insert a decimal point one place to the left of the last digit:
196 19.6
2.) Add either a “10” or “9” in front to get your real pressure (mb)
(The normal range of pressure on earth’s surface is from 960(mb)-1050(mb)
Why not add 9? 19.6919.6: REJECTED!
Follow this rule: If first digit is less than 5, add a “10”
If first digit is 5 or greater, add a “9”
Decode these pressures:

5. The Barometric Trend + 19 //
+ means “Higher now than it was 3 hours ago”
- means “Lower now than it was 3 hours ago”
19 = the pressure has changed by 1.9 mb
/ means the pressure is currently rising
\ means the pressure is currently falling
What was the pressure 3 hours ago?
(mb)

6. Wind Speed and Direction

7. Page 13 on ESRT’s

9. Decode this Station Model:
1.) Temp
2.) Dew Point
3.) Pressure
4.) Barometric Trend
5.) Wind speed
6.) Direction
7.) Cloud Cover

10. Produce/Code a Station Model
Temperature= 45F Draw a
Dewpoint= 32F Station
Wind NE at 20 knots Model
Overcast Using this
Visibility= 1.5 miles  Data
Rain Showers
Pressure Now= mb
Pressure 3 hrs. ago= mb
Barometer Falling
Precipitation in last 6 hrs.= .53 in.

11. Yours should look like this: