Climate/Weather
What is the main difference between weather and climate?
Weather = short-term atmospheric conditions; Climate = long-term average patterns.
Name two common types of precipitation
Rain and snow (also sleet, freezing rain, hail).
Name two weather-related phenomena included in this unit (list any two).
Thunderstorm, tornado, hurricane, drought (any two)
If the barometric pressure is falling, is fair weather or stormy weather more likely soon?
Falling pressure → stormy weather more likely.
On a weather map, what symbol is commonly used to show a cold front?
Cold front symbol: blue line with triangles pointing in direction of movement.
Give one example of a weather measurement and one example of a climate description
Example weather: temperature today, rainfall this afternoon; Example climate: humid subtropical climate with mild winters.
What type of precipitation forms when raindrops freeze before hitting the ground?
Freezing rain.
What is a thunderstorm and what two hazards does it commonly bring?
A thunderstorm is a storm with thunder and lightning; hazards: lightning, heavy rain, hail, strong winds.
How does high humidity influence how warm the air feels to people?
High humidity makes the air feel warmer (less evaporative cooling), raising the heat index.
What does an H typically show on a surface weather map? What does an L show?
H = high pressure (usually fair weather); L = low pressure (clouds, precipitation likely).
Explain why a single cold winter does not prove that climate is changing.
Climate is based on long-term averages (decades); one cold winter is short-term variability.
How does sleet differ from freezing rain?
Sleet = raindrops freeze into ice pellets before hitting ground; Freezing rain = raindrops freeze on contact with cold surfaces.
What is the essential difference between a tornado and a hurricane in terms of size and where they form?
Tornadoes: small (hundreds of meters to a few kilometers), form over land from severe thunderstorms; Hurricanes: large (hundreds of kilometers), form over warm oceans and are tropical cyclones.
Given: rising temperature, falling pressure, increasing clouds — predict what weather is likely next and explain your reasoning.
Likely rain or storms soon — rising temps and falling pressure with more clouds indicate an approaching low or frontal system.
How can you tell from a weather map where precipitation is most likely right now? (Name at least one map feature to check.)
Check low-pressure centers, frontal boundaries, and radar/precipitation shading — precipitation likely near fronts and ahead of lows.
Describe how elevation and latitude each influence a region’s climate.
Elevation: higher elevation = cooler temps; Latitude: closer to equator = warmer, poles = colder.
Explain how hail forms inside a thunderstorm.
Hail forms when strong updrafts in thunderstorms carry raindrops into very cold upper air; layers of ice build as they are carried up and down.
Describe one way drought affects ecosystems or human systems.
Drought reduces water availability, stresses crops and ecosystems, can lead to water restrictions and wildfires.
You read a forecast that a warm front is approaching. Describe the typical sequence of cloud types and precipitation a location might experience.
Warm front: cirrus → alto-stratus → nimbostratus; light to moderate continuous precipitation, temperatures gradually warm.
Given a simple surface map with a cold front moving east and an area of low pressure ahead of it, predict the short-term weather for locations just ahead of the cold front.
Locations ahead of the cold front and near the low may see increasing clouds, warming or humid conditions, possible showers or thunderstorms; after the front passes, cooler drier air and clearing.
Using the terms "average," "variability," and "time scale," write a student-friendly definition
Climate = the long-term average and variability of weather for a place over decades (includes averages and typical extremes).
Given air temperatures at different layers of the atmosphere (warm layer above a cold layer near the ground), predict which precipitation.
Warm layer aloft melts snow to rain, thin cold layer near ground refreezes to sleet or freezing rain depending on depth — predict sleet if the cold layer is thick enough to refreeze drops; freezing rain if thin.
Compare and contrast the formation and impacts of hurricanes and tornadoes
Hurricanes form over warm ocean water, are large and long-lasting with organized circulation and heavy rain/storm surge; tornadoes are smaller, form from severe thunderstorms, have extremely strong winds over a narrow path; both can cause wind and rain damage but scales and formation differ.
Using air temperature, barometric pressure, and humidity together, describe (step-by-step) how you would predict whether thunderstorms are likely later in the afternoon.
Steps: check temperature (instability),
check pressure trend (falling → approaching low), check humidity (high moisture favors storms),
combine with frontal or map features (cold front + daytime heating = high thunderstorm chance).
Look at this authentic weather-map scenario (teacher displays map): A low-pressure center is over City A with warm, humid air to its southeast and a cold front approaching from the west. Write a short forecast for City A for the next 24 hours (include temperature trend, precipitation chance, and wind or storm possibilities).
Example short forecast: "City A: Over the next 24 hours expect increasing clouds with warm, humid conditions this afternoon. Falling pressure and the approaching cold front increase chance of showers and thunderstorms (some could be strong). Temperatures likely steady then falling after the front passes; winds shifting from southeast to northwest."