Photo courtesy of strongdog.org |
A heat wave is generally when temperatures are 10 degrees or more above the average high temperature for the region during the summer months that last for a long period of time and occur with high humidity.
These events are normally accompanied by 3 types of heat weather warnings:
· Excessive Heat Watch—Conditions are favorable for an excessive heat event to meet or exceed local Excessive Heat Warning criteria in the next 24 to 72 hours.
· Excessive Heat Warning—Heat Index values are forecast to meet or exceed locally defined warning criteria for at least 2 days (daytime highs=105-110° Fahrenheit).
· Heat Advisory—Heat Index values are forecast to meet locally defined advisory criteria for 1 to 2 days (daytime highs=100-105° Fahrenheit).
Some signs of heat related health emergencies are as follows:
· Heat cramps are caused by exposure to high heat and humidity and loss of fluids and electrolytes.
o The signs include: muscular pains and spasms that usually occur in the legs or abdomen.
o How to treat it: Move to a cool place; slowly drink cool water; remove tight clothing, apply cool compresses to skin.
· Heat exhaustion normally involves the loss of body fluids through heavy sweating during strenuous exercise or physical labor in high heat and humidity.
o The signs include: cool, moist, pale or flushed skin; heavy sweating; headache; nausea; dizziness; weakness; exhaustion.
o How to treat it: move the person to a cooler place; remove or loosen tight clothing; apply cool, wet clothes or towels to skin; fan the person; if conscious, give the person small amounts of cool water to drink… make sure they drink slowly; watch for changes in condition.
§ If the person refuses water, is unconscious or vomits, call 9-1-1.
· Heat stroke or sun stroke is a life-threatening condition which is caused by a person’s temperature control system not working, so the body is unable to cool itself.
o The signs include: hot, red skin which may be moist or dry; changes in consciousness; vomiting; high body temperature
o How to treat it: Call 9-1-1 immediately; move the person to a cooler place; remove or loosen tight clothing; apply cool, wet clothes or towels to skin; fan the person; if conscious, give the person small amounts of cool water to drink… make sure they drink slowly; apply ice/cold packs wrapped in cloth to wrists, ankles, groin, neck, and armpits.
For tips on how to prepare for a heat wave and what you should do during a heat wave, click here to view a Red Cross fact sheet!
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