Geography 103: Weather

Exercise 10. Los Angeles weather.

The chart below shows surface data for 12Z on January 13, 2004. This was printed from the web site weather.unisys.com. Go to this site to find instructions for reading and interpreting this.

Print out the data sheet to answer the questions.

Locate Salt Lake City. What is the pressure at the center of the ‘High’ located close to Salt Lake City? (Give units.)

Locate Los Angeles. Moving towards Los Angeles from Salt Lake City what are the values of the pressure contours (isobars) that you cross (in mb)?

Using the chart below (same chart as above but enlarged to show just the southwestern U.S.), what is the surface pressure in Los Angeles?

What is the temperature in Los Angeles? (Give units.)

What is the dew point in Los Angeles? (Give units.)

How would you describe the sky in Los Angeles?

Using the chart below what is the surface pressure in Salt Lake City?

What is the temperature in Salt Lake City?

What is the dew point in Salt Lake City?

How would you describe the weather in Salt Lake City?

The chart below shows the surface conditions in the southwestern U.S. 4 hours later on this same day.

What has happened to the temperature, pressure and sky conditions between 4 a.m. and 8 a.m. in Los Angeles?

The chart below shows the surface conditions in the southwestern U.S. 4 hours later on this same day.

What has happened to the temperature, pressure and sky conditions between 8 a.m. and noon in Los Angeles?

The chart below shows the surface conditions in the southwestern U.S. 4 hours later on this same day.

What has happened to the temperature, wind, and pressure between noon and 4 p.m. in Los Angeles?

The chart below shows the surface conditions in the southwestern U.S. 4 hours later on this same day.

What has happened to the temperature, wind, and pressure between 4 p.m. and 8 p.m. in Los Angeles?