Part III - Reading a Map: Questions about weather conditions and fronts across the U.S.
Map of the United States showing weather patterns with high and low pressure systems, fronts, and temperature readings for various cities.
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Show Answer Key & Explanations
Step-by-step solution for: Weather Fronts-Weather Map online exercise for
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Show Answer Key & Explanations
Step-by-step solution for: Weather Fronts-Weather Map online exercise for
Let's analyze the weather map and answer each question step by step. The map shows high-pressure systems (H), low-pressure systems (L), fronts, temperatures, and cities across the United States.
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Answer:
Cities under high-pressure systems (H) typically have dry, clear conditions because high pressure brings sinking air, which suppresses cloud formation.
From the map:
- Seattle is under a high-pressure system (H) and has a temperature of 47°F.
- Chicago is also near a high-pressure system (H), with a temperature of 30°F.
- New York City is under a high-pressure system (H), with 51°F.
✔ So, Seattle, Chicago, and New York City are likely experiencing dry, clear conditions.
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Answer:
Rain showers often occur behind a cold front or in areas where a low-pressure system is present. Lingering rain usually happens behind a cold front, especially in the area just after the front has passed.
On the map:
- A cold front (blue line with triangles pointing in the direction of movement) is moving through the central U.S., passing through Washington D.C. and Charleston, and extending toward Orlando and Miami.
- Cities just behind the cold front may still be experiencing rain.
Looking at the map:
- Washington D.C. and Charleston are located behind the cold front and are close to a low-pressure system (L).
- These areas are likely experiencing lingering rain showers.
✔ So, Washington D.C. and Charleston are probably experiencing lingering rain showers.
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Answer:
A cold front (blue line with triangles) is shown passing through Little Rock.
- Cold fronts bring sudden changes in weather: a drop in temperature, increasing wind, and often thunderstorms or heavy rain.
- After the front passes, skies clear up and temperatures drop.
Since Little Rock is on the cold side of the front (the blue line is moving southeast), it has already experienced the passage of a cold front.
✔ Type of front: Cold front
✔ Weather experienced: Likely sudden drop in temperature, strong winds, possible thunderstorms or heavy rain before clearing.
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Answer:
Cities that are ahead of a cold front will cool down as the front approaches.
The cold front is moving southeastward from the Midwest into the Southeast. Cities ahead of this front (to the south and east) will soon experience cooler air.
- Orlando and Miami are south of the front, but not yet affected.
- However, New Orleans is located just ahead of the front (the front is approaching from the north).
But wait — look closely: New Orleans is south of the front, but not directly on the advancing edge. Actually, the front is moving toward the southeast, so cities like Orlando and Miami are in the path of the cold front.
However, New Orleans is close to the front, and since the front is moving southeast, New Orleans is likely to see cooling soon.
Alternatively, Washington D.C. and Charleston are already behind the front and are cooling — but the question asks who will cool off soon, meaning before the cooling occurs.
So, Orlando and Miami are currently warm (70°F and 72°F) and are ahead of the cold front, so they will cool off soon as the front moves in.
✔ Answer: Orlando and Miami will be cooling off soon.
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Answer:
Stormy or rainy weather occurs along fronts, especially cold fronts and warm fronts, and around low-pressure systems (L).
On the map:
- Low-pressure systems (L) are over Los Angeles, central Gulf Coast (near New Orleans), and eastern seaboard (near Charleston).
- The cold front is bringing rain along its path.
- Charleston, Washington D.C., and Orlando are near the front and/or low pressure.
Additionally:
- New Orleans is near a low-pressure system and a cold front — likely seeing storms.
- Miami is near a warm front (red line with semicircles), which can bring steady rain.
✔ Cities likely experiencing stormy or rainy weather:
Washington D.C., Charleston, New Orleans, Orlando, and Miami
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Answer:
Frozen precipitation (snow, sleet) requires temperatures at or below freezing (32°F).
Check temperatures:
- Chicago: 30°F → Below freezing
- Seattle: 47°F → Too warm
- New York City: 51°F → Too warm
- Washington D.C.: 59°F → Too warm
- All others are above 60°F
Only Chicago is below freezing.
✔ Answer: Chicago is cold enough for snow or sleet.
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1. Seattle, Chicago, New York City
2. Washington D.C., Charleston
3. Cold front – brought sudden drop in temperature, strong winds, possible thunderstorms or heavy rain.
4. Orlando and Miami
5. Washington D.C., Charleston, New Orleans, Orlando, Miami
6. Chicago
Let me know if you'd like a visual explanation or help interpreting the symbols!
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1. Which cities are experiencing dry, clear conditions?
Answer:
Cities under high-pressure systems (H) typically have dry, clear conditions because high pressure brings sinking air, which suppresses cloud formation.
From the map:
- Seattle is under a high-pressure system (H) and has a temperature of 47°F.
- Chicago is also near a high-pressure system (H), with a temperature of 30°F.
- New York City is under a high-pressure system (H), with 51°F.
✔ So, Seattle, Chicago, and New York City are likely experiencing dry, clear conditions.
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2. What cities are probably experiencing lingering rain showers?
Answer:
Rain showers often occur behind a cold front or in areas where a low-pressure system is present. Lingering rain usually happens behind a cold front, especially in the area just after the front has passed.
On the map:
- A cold front (blue line with triangles pointing in the direction of movement) is moving through the central U.S., passing through Washington D.C. and Charleston, and extending toward Orlando and Miami.
- Cities just behind the cold front may still be experiencing rain.
Looking at the map:
- Washington D.C. and Charleston are located behind the cold front and are close to a low-pressure system (L).
- These areas are likely experiencing lingering rain showers.
✔ So, Washington D.C. and Charleston are probably experiencing lingering rain showers.
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3. What type of front passed through Little Rock? Explain what type of weather they probably had from the front that passed through.
Answer:
A cold front (blue line with triangles) is shown passing through Little Rock.
- Cold fronts bring sudden changes in weather: a drop in temperature, increasing wind, and often thunderstorms or heavy rain.
- After the front passes, skies clear up and temperatures drop.
Since Little Rock is on the cold side of the front (the blue line is moving southeast), it has already experienced the passage of a cold front.
✔ Type of front: Cold front
✔ Weather experienced: Likely sudden drop in temperature, strong winds, possible thunderstorms or heavy rain before clearing.
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4. Which city will be “cooling off” soon?
Answer:
Cities that are ahead of a cold front will cool down as the front approaches.
The cold front is moving southeastward from the Midwest into the Southeast. Cities ahead of this front (to the south and east) will soon experience cooler air.
- Orlando and Miami are south of the front, but not yet affected.
- However, New Orleans is located just ahead of the front (the front is approaching from the north).
But wait — look closely: New Orleans is south of the front, but not directly on the advancing edge. Actually, the front is moving toward the southeast, so cities like Orlando and Miami are in the path of the cold front.
However, New Orleans is close to the front, and since the front is moving southeast, New Orleans is likely to see cooling soon.
Alternatively, Washington D.C. and Charleston are already behind the front and are cooling — but the question asks who will cool off soon, meaning before the cooling occurs.
So, Orlando and Miami are currently warm (70°F and 72°F) and are ahead of the cold front, so they will cool off soon as the front moves in.
✔ Answer: Orlando and Miami will be cooling off soon.
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5. Which cities are probably experiencing stormy or rainy weather?
Answer:
Stormy or rainy weather occurs along fronts, especially cold fronts and warm fronts, and around low-pressure systems (L).
On the map:
- Low-pressure systems (L) are over Los Angeles, central Gulf Coast (near New Orleans), and eastern seaboard (near Charleston).
- The cold front is bringing rain along its path.
- Charleston, Washington D.C., and Orlando are near the front and/or low pressure.
Additionally:
- New Orleans is near a low-pressure system and a cold front — likely seeing storms.
- Miami is near a warm front (red line with semicircles), which can bring steady rain.
✔ Cities likely experiencing stormy or rainy weather:
Washington D.C., Charleston, New Orleans, Orlando, and Miami
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6. Which city is cold enough to support frozen precipitation like snow or sleet?
Answer:
Frozen precipitation (snow, sleet) requires temperatures at or below freezing (32°F).
Check temperatures:
- Chicago: 30°F → Below freezing
- Seattle: 47°F → Too warm
- New York City: 51°F → Too warm
- Washington D.C.: 59°F → Too warm
- All others are above 60°F
Only Chicago is below freezing.
✔ Answer: Chicago is cold enough for snow or sleet.
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✔ Final Answers:
1. Seattle, Chicago, New York City
2. Washington D.C., Charleston
3. Cold front – brought sudden drop in temperature, strong winds, possible thunderstorms or heavy rain.
4. Orlando and Miami
5. Washington D.C., Charleston, New Orleans, Orlando, Miami
6. Chicago
Let me know if you'd like a visual explanation or help interpreting the symbols!
Parent Tip: Review the logic above to help your child master the concept of weather maps worksheet.
