Do you know the difference between a hurricane and a typhoon? Find definitions for weather terms from absolute humidity to zonal flow and everything in between in the WeatherBug weather glossary.

Heat Index

The temperature your body feels when the air temperature is combined with the relative humidity. As humidity increases, the rate of evaporation decreases. Our bodies are cooled by the evaporation of our perspiration. Therefore, if evaporation is slowed, the cooling of our bodies is slowed and we feel warmer.

More Glossary Terms:

• Gravity
• Gust-Front
• Hail
• Haze
• Heat Advisory

• Heavy Snow
• Heavy Surf
• Heavy Surf Advisory
• High
• High Wind Advisory