How Does a Mid-Latitude Low Develop into a Storm System?
ES2003  Surface Weather Observations at 0200Z

Another way to observe the progression of the storm is to examine data from ground-based weather stations. These surface observations include barometric pressure, temperature, wind speed and direction, dew point temperature, and precipitation. Meteorologists also note the type of weather that is occurring at the time the observations are made.

  !   Click each dot to view a table of surface weather observations for that city.

Satellite image taken at 0200Z on March 13, 1993.

In the tables, the wind direction is reported as a compass reading in degrees clockwise from north. The compass reading tells the direction from which the wind is blowing. Barometric pressure is reported in inches of mercury (abbreviated Hg).

4. Describe the weather conditions in each of the four cities on March 13, 1993 at 0200Z.

5. What do the barometric pressures for Asheville and Concord tell you about the location of the storm relative to these cities?

6. How do the surface weather observations compare to the colors indicated on this satellite image?

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