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Sec.: __ Name: _Experiment: Reading A Weather Map

(E Science 9-16-3b)

Purpose: To learn how to read a weather map.

Materials: Figure in textbook page 472, 800.lens internet (http://www.comet.ucar.edu/dstreme)

'Methods: Part A: Today's Weather1. Use the internet to find the station models ontoday's weather map for Chicago, Illinois, and

, Miami, Florida. Find the temperature, dew point,cloud coverage, wind direction, wind speed,pressure, change of pressure, and precipitation ateach location .

. 2. Examine the fronts and pressure systems onthe weather map, then make a prediction for theweather in our area for the next 24 hrs.

Part B: Reading a Weather Map.1. Looking at the map on this lab and reviewing information about the spacing ofisobars and winds speed, determine whether the wind would be stronger atSpringfield, Illinois, or at San Diego, California. Record your answer. What are thetwo ways to tell the wind speed at these locations?2. Determine and record the type of front near Dallas. Texas.3. The triangles or half circles on the weather front symbol are on the side of the linethat indicates the direction the front is going. Determine the direction that the coldfront. located over Washington state, is moving.4. Locate the pressure system over southeast Kansas. Predict what will happen to theweather of Nashville, Tennessee. if this pressure system should move there.5. The prevailing westerlies are the winds responsible for the movement of weatheracross the United States and Canada. Based on this, would you expect Columbia,South Carolina, to continue to have clear skies? Explain your answer.6. The line on the station model that indicates wind speed also shows from whichdirection the wind is coming, and the wind is named accordingly. What is the name ofthe wind blowing at Little Rock, Arkansas?

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Sec.:__ Name: _Results: Part A: Today·s Weather1. Chicago: __ oF, __ oF, __ % of cloud coverage, __ wind direction,__ speed of wind, __ mB, __ mB change, precipitation type.

Miami: __ oF,__ oF,__ % of cloud coverage, __ wind direction,__ speed of wind, __ mB, __ mB change, precipitation type.2. Weather prediction: _Part B: Reading a Weather Map.1. City with strongest wind:

Two ways:2. Front at Dallas, Texas: 3. Direction of cold front:4. Nashville, Tennessee:5. Columbia, South Carolina:8. Little Rock, Arkansas:

Conclusions:

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(Use the figure to answer the following questions).

1. What types of clouds would most likely be overstation A?2. Which station has the lowest pressure?

3. How would you describe the wind at station B?

4. Which station is recording the highest windspeed?5. Which station has the highest pressure?

6. What kind of front is south of station A?

7. Which station has the most cloud cover?8. How might the temperature change at station C over the next few hours? ExplainWhy?

Discussion: (Look at the partial station model in the figure. Answer each of thefollowing questions using information from that station model).

1. What is the barometric pressure at the station?

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2. What is the current temperature at the station?3. How much has the barometric pressure changed in thelast 3 hours?

4. What is the current dew point at the station?

5. Given the dew point and the air temperature, do you expect there to be precipitationat this station? Explain why.

6a. Read Matthew 16: 1 - 4. List two features of the sky, that Jesus referred to, inforecasting the weather for the day. a. if red sky in evening then _

b. if red sky in morning then _6b. What was Jesus reply to the request of the Pharisees?