- What is climate?
- What is our climate system?
- What is an "Indian Summer"?
- What is the greenhouse effect and how does it affect temperatures?
- Is the Earth getting warmer?
- Why were the temperatures so warm late November 2006 through early January 2007 in southeastern Pennsylvania and western New Jersey?
- Global Warming may be a big problem, but can you make a difference?
- What is Global Warming?
- What are clouds?
- How are clouds formed?
- What are contrails?
- Why do clouds float?
- Why do clouds turn gray?
- How do clouds move?
- Why are clouds white?
- What are the different heights of clouds?
- Why do clouds form at different heights in the atmosphere?
- Why are clouds flat on the bottom?
- Why do some clouds have a "fluffy" edge to them?
- What are Altocumulus clouds?
- What are Altostratus clouds?
- What are Cumulus clouds?
- What are Cumulonimbus clouds?
- What are Cirrus clouds?
- What are Cirrostratus clouds?
- What are Cirrocumulus clouds?
- What are Nimbostratus clouds?
- What are Stratus clouds?
- What are Stratocumulus clouds?
- What are Mammatus clouds?
- What are Lenticular clouds?
- What are Green Clouds?
- What is a wall cloud?
El Niño/La Niña
- What is a hurricane?
- How do hurricanes form?
- What are the differences between a hurricane and a typhoon?
- How does a hurricane get named
- Who names hurricanes?
- How many hurricanes appear in the Atlantic Basin per year?
- What is storm surge?
- What is the Saffir-Simpson scale?
- When does hurricane season start?
- Why does the West Coast not get hit by hurricanes
- What is lightning?
- What should I do when lightning is near?
- What is a heat flash?
- What color is lightning?
- Is there a higher danger of getting struck by lightning if you are near a window?
- What causes lightning?
- What causes thunder?
- What is ball lightning?
- How does lightning form?
- How do you know if lightning is nearby?
- How hot is lightning?
- What are blue jets?
- What are elves?
- What are sprites?
- How does rain form?
- What causes rain?
- How fast do raindrops fall?
- How big are rain drops?
- What is freezing rain?
- What is acid rain?
- What is the water cycle?
- How is freezing rain different than sleet?
- How many inches would rain be if it were snow?
- What is Probability of Precipitation?
- How does precipitation clean the air?
- What is the UV index?
- What is the sun made of?
- How can you tell what time it is by looking at the sun?
- What is ozone?
- Why is there more sunlight in the summer than in the winter?
- What is the ozone layer?
- What are crepuscular rays?
- What are sun pillars?
- What is a "Sun Dog"?
- Why do I sometimes see a "ring" around the moon or sun?
- What is wind chill?
- How do you determine RealFeel temperature?
- What determines daily temperatures?
- Why is late January the coldest part of winter when the sun seems to be returning back into the northern hemisphere?
- What is heat index?
- What is heat stroke?
- What is temperature?
- Why is the coolest part of the day typically just before sunrise?
- Can you tell how far away a thunderstorm is?
- What is a thunderstorm?
- What causes a thunderstorm?
- Are thunderstorms dangerous?
- What are the dangers associated with thunderstorms?
- Where are thunderstorms most likely to occur?
- When are thunderstorms most likely to occur?
- What is a supercell thunderstorm?
- What causes thunder?
- Is it true that you can use thunder to tell how far away a storm is?
- What is a tornado?
- How do tornadoes form?
- What is the difference between a Tornado Watch & a Tornado Warning?
- How do tornadoes die?
- What is a gustnado?
- Where are tornadoes most likely to occur?
- What is a fire tornado?
- When are tornadoes most likely to occur?
- Why are tornado warnings issued?
- What is a funnel cloud?
- What is a waterspout?
- What is a landspout?
- What is a tsunami?
- What is the Ring of Fire?
- What is plate tectonics?
- When did Mount St. Helens erupt?
- How many volcanoes are there?
- What is the largest active volcano?
- What is the difference between lava and magma?
- How long does it take for lava to cool down?
- What is a volcano?
- What are the different types of volcanoes?
- Why do volcanoes erupt?
- What's the difference between windy and breezy conditions?
- How is wind predicted with isobars?
- What causes the wind to blow?
- What are the Santa Ana winds?
- What are some different types of wind names?
- What is the Beaufort Scale?
- What is wind?
- What is a derecho?
- How do windmills work?
- What is a knot?
- What are the global wind patterns?
- What are the doldrums?
- How is wind helpful to Earth?
- What are the prevailing westerlies?
- What is a sea breeze?
- What is a land breeze?
- What are the polar easterlies?
- What is a Winter Storm Advisory-Watch-Warning?
- What is a Nor'easter?
- How do winter storms form?
- What is an avalanche?
- What is frostbite?
- What is an Alberta Clipper?
- Why does the snow looks like diamonds or sparkly?
- Why does it appear brighter outside after a snowstorm?
- If the moisture in a coastal storm is picked up from the ocean, wouldn't the snow have salt particles in it and melt as it hits the ground?
- Why can you see your breath when it's cold outside?
- What is frost?
- How do blizzards form?
- What is sleet?
- How is lake-effect snow formed?
- How is snow formed?
- What are snowflakes?
- Can areas around the Great Lakes still get lake-effect snow even when the lakes are very cold?