A period of abnormally and uncomfortably hot and unusually humid weather. Typically a heat wave lasts two or more days.
The heat index (HI) is an index that combines air temperature and relative humidity in an attempt to determine the human-perceived equivalent temperature — how hot it feels, termed the felt air temperature.
Temperatures that hover 10 degrees or more above the average high temperature for the region and last for several weeks are defined as extreme heat. Humid or muggy conditions, which add to the discomfort of high temperatures, occur when a "dome" of high atmospheric pressure traps hazy, damp air near the ground. Excessively dry and hot conditions can provoke dust storms and low visibility. Droughts occur when a long period passes without substantial rainfall. A heat wave combined with a drought is a very dangerous situation.
Quick Tips for Responding to Excessive Heat Events:
Use air conditioners or spend time in air-conditioned locations such as malls and libraries
Use portable electric fans to exhaust hot air from rooms or draw in cooler air
Take a cool bath or shower
Minimize direct exposure to the sun
Stay hydrated – regularly drink water or other nonalcoholic fluids
Eat light, cool, easy-to-digest foods such as fruit or salads
Wear loose fitting, light-colored clothes
Check on older, sick, or frail people who may need help responding to the heat
Know the symptoms of excessive heat exposure and the appropriate responses.
Direct the flow of portable electric fans toward yourself when room temperature is hotter than 90°f
Leave children and pets alone in cars for any amount of time
Hurricane (abbrev. HURCN) - a tropical cyclone in the Atlantic, Caribbean Sea, Gulf of Mexico, or eastern Pacific, which the maximum 1-minute sustained surface wind is 64 knots (74 mph) or greater.
Thunderstorms and lightning
Thunderstorm - a local storm produced by a cumulonimbus cloud and accompanied by lightning and thunder. Lightning (abbrev. LTNG) - a visible electrical discharge produced by a thunderstorm. The discharge may occur within or between clouds, between the cloud and air, between a cloud and the ground or between the ground and a cloud.
Winter storm Warning
This product is issued by the National Weather Service when a winter storm is producing or is forecast to produce heavy snow or significant ice accumulations. The criteria for this warning can vary from place to place.
Please check the National Weather Service website for current weather warnings.
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