Detailed guide to interpreting weather map symbols used in meteorology.

To solve this problem, we need to match the weather symbols on the map with their correct meanings using the "Weather Map Key" provided in the table.

Step 1: Understand the Key
Look at the table at the top of the page. It tells us what each symbol means:
* H: High pressure
* L: Low pressure
* Blue line with triangles: Cold front
* Red line with half-circles: Warm front
* Gray shaded area: Cloudy
* Small dots: Rain
* Snowflakes (asterisks): Snow
* Lightning bolt: Thunderstorm

Step 2: Identify the Symbols on the Map
Now, look at the map of the United States and find where these symbols are placed.

1. The Letter 'H': There is a big letter H over the western part of the US (around California/Nevada). According to the key, H stands for High pressure.
2. The Letter 'L': There is a big letter L over the eastern part of the US (around the Great Lakes/New York area). According to the key, L stands for Low pressure.
3. The Blue Line with Triangles: There is a blue line with triangles pointing downwards extending from the 'L' down towards the south. The triangles point in the direction the cold air is moving. This symbol represents a Cold front.
4. The Red Line with Half-Circles: There is a red line with half-circles extending from the 'L' towards the east. This symbol represents a Warm front.
5. The Gray Shaded Area: There is a large gray shaded area covering the middle-left part of the country (Mountain West region). According to the key, this shading means it is Cloudy.
6. The Small Dots: Inside the gray cloudy area, there are small dots scattered around. According to the key, these dots mean Rain.
7. The Snowflakes: Near the 'L' in the northeast, there are asterisk-like symbols (*). These look like snowflakes. According to the key, this means Snow.
8. The Lightning Bolt: In the southern central US (Texas/Oklahoma area), there is a lightning bolt symbol. According to the key, this means Thunderstorm.

Step 3: Match Symbols to Locations
Based on the identification above, here is the breakdown of what is happening in different parts of the map:

* West Coast (California/Nevada): High pressure (H)
* Mountain West (Utah/Colorado area): Cloudy (gray shade) and Rain (dots)
* South Central (Texas/Oklahoma): Thunderstorm (lightning bolt)
* Northeast/Midwest (New York/Great Lakes): Low pressure (L), Snow (snowflakes)
* Fronts extending from the Low Pressure center:
* Going South: Cold front (blue line with triangles)
* Going East: Warm front (red line with half-circles)

Final Answer:

Here are the weather conditions shown on the map based on the key:

* H: High pressure (located in the West)
* L: Low pressure (located in the Northeast)
* Blue line with triangles: Cold front (stretching south from the Low pressure)
* Red line with half-circles: Warm front (stretching east from the Low pressure)
* Gray shaded area: Cloudy (covering the Mountain West region)
* Dots inside the gray area: Rain (falling in the Mountain West region)
* Snowflake symbols (*): Snow (falling in the Northeast near the Low pressure)
* Lightning bolt: Thunderstorm (occurring in Texas/Oklahoma area)