The Saffir-Simpson Hurricane Scale is the 1-to-5 ranking that puts a number on a hurricane's wind damage potential. It is...

Soil temperature is the number that decides whether a seed will germinate or rot. Air temperature gets the headline forecast,...

Humidity is water vapor in the air. You cannot see it; humidity is the gaseous form of water, distinct from...

A blood moon is a total lunar eclipse seen from the night side of Earth, when the Moon passes through...

The polar vortex is not a winter storm. It is a permanent feature of the polar atmosphere, a circulation of...

An aurora forecast tells you whether the northern lights will reach your latitude tonight. The system is built on solar...

Hail damage is the silent budget item of severe-storm season. A 15-minute storm can leave a roof, a car, a...

Hypothermia sets in when body core temperature falls below 95 degrees Fahrenheit. It is the medical emergency that gets confused...

The Beaufort Wind Scale is the 220-year-old system that translates wind from a number on an anemometer into something you...

Quick Reference: Natural Ways To Get Rid of Wasps Best season to act: Early spring, before queens build nests. Top