WS Station Models KEY
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School
San Francisco State University *
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Course
1A
Subject
Geography
Date
Feb 20, 2024
Type
docx
Pages
4
Uploaded by BarristerIce3414
Name: KEY
Date:
Earth Science
Period:
Station Model Worksheet
Part 1:
To convert from millibars to “station model code” take the last three numbers.
For example 1234.5 turns into 345.
To convert from “station model code” to millibars, do the following:
If the value is “500” or higher, put a 9 in front of it and add the decimal for the last digit.
If the value is lower than, put a 10 in front of it and add the decimal for the last digit.
© K. Coder 2015
Millibars
Station Model Code
1
1028.0
280
2
1008.4
084
3
992.2
922
4
976.6
766
5
994.8
948
6
1028.1
281
7
1020.6
206
8
1008.0
080
9
1016.8
168
10
980.0
800
Part 2:
For Station 1, use the station model below to fill in the chart.
For Station 2, use the information in the chart to create a station model.
Station 1
Station 2
Weather Factor
Station 1
Station 2
Temperature (
o F)
80
72
Dew Point (
o F)
62
70
Barometric Pressure (mb)
995.4
987.2
Wind Direction
Northwest
SW
Wind Speed (knots)
10
25
Precipitation (inches)
0.10
None
Cloud Cover
50
25
Barometric Trend
-3.2
+1.0
Present Weather
Hail
Fog
Visibility (miles)
2
1/4
© K. Coder 2015
72 872
¼ = +10/
70
Part 3
: Practice Regents Questions
1.
Which station model correctly represents the weather conditions in an area that is experiencing winds from the northeast at 25 knots and has had a steady drop in barometric pressure of 2.7 millibars during the last three hours?
2.
Which station model represents a location that is currently receiving some form of precipitation?
3.
What is the visibility, in miles, shown on the station model below?
a.
10
b. 28
c. 38
d. 57
4.
Refer to the station model below. Fill in all ten blanks in order to complete the table.
© K. Coder 2015
Weather Element
Actual Reading
Instruments Used
to Make Reading
Air Pressure
999.3 mb
Barometer
Air temperature
47 ˚F
Thermometer
Wind speed
25 knots
Anemometer
Amount of
precipitation
0.14 in
Rain gauge
Wind direction
Southeast
Wind vane
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Base your answers to questions 5 and 6 on the station model below, which shows the weather conditions at Rochester, New York, at 4 p.m., on a particular day in June.
5.
What was the actual barometric pressure, according to the station model, to the nearest tenth of a millibar?
6.
The winds shown by this station model were blowing from which compass direction and at what wind speed?
7.
On the weather map station model provided below, using the proper format, record the six
weather conditions shown below.
Wind
: from the northwest
Wind speed
: 10 knots
Barometric pressure
: 1022.0 mb
Cloud cover
: 50%
Visibility
: 5 mi
Precipitation (in the past 6 hours):
.45 in
© K. Coder 2015
220
5
.45
1002.1 mb
Southeast, 25 knots