Weather Facts for Kids
Wild facts about weather
Before satellites and computers, weather forecasting relied on patterns that sailors and farmers observed over centuries. The phrase 'Red sky at night, sailor's delight; red sky in morning, sailor's warning' has scientific merit — a red evening sky often signals clear, dry air moving in from the west.
A derecho is a long-lived, fast-moving band of severe thunderstorms that produce damaging straight-line winds over a wide area. A single derecho can race across 240 miles or more, causing destruction similar to a tornado but spread in a long, straight path instead of a narrow track.
The longest lightning bolt ever recorded stretched 477 miles (768 km) across Texas, Louisiana, and Mississippi in October 2018. That is roughly the distance from London to Edinburgh and back! The World Meteorological Organization officially certified this as the longest lightning flash in history.
Radiation fog — the most common type in many countries — forms on clear, calm nights when the ground rapidly loses heat by radiating it into space. The ground cools the air directly above it below the dew point, causing water vapor to condense into thick, ground-hugging fog by dawn.
A single severe hailstorm can wipe out an entire season's worth of crops in minutes. In China, India, and the United States, farmers in hail-prone regions often buy hail insurance to protect against losing their harvest to a sudden storm of ice pellets.
Oymyakon in Siberia, Russia, is the coldest permanently inhabited place on Earth. In February 1933, the temperature plunged to -90°F (-67.7°C). Despite these extremes, a few hundred people still live there year-round, relying on underground hot springs and reindeer herding.
Snow rollers are rare, naturally occurring cylinders of snow that look like giant Swiss rolls or hollow logs. They form when strong winds pick up a small clump of snow and roll it along the ground, picking up more snow as they go — nature's own snowball-making machine.
Many animals can sense an approaching storm well before humans can. Sharks swim to deeper water, birds stop singing and take shelter, and cows often lie down before rain. These behaviors may be triggered by changes in barometric pressure, infrasound from distant thunder, or electromagnetic signals.
Hurricane Patricia, which struck Mexico in October 2015, had the highest wind speeds ever recorded in the Western Hemisphere — 215 mph (346 km/h) sustained winds near the center. It rapidly intensified from a tropical storm to a Category 5 monster in just 24 hours.
There are over 10,000 official weather observation stations around the world, plus thousands more on ships, buoys, aircraft, and weather balloons. All this data is collected and shared internationally every hour, feeding into computer models that create the weather forecasts you see every day.