Heat wave prompts warnings, bakes nation ahead of July 4 holiday


A heat advisory remains in effect until noon today through late Monday evening.

- Southern-style heat is expected this weekend. "Hot and humid weather will continue through most of next week".

With temperatures soaring into the upper 90s and a heat index as high as 104 degrees, the region is in the middle of a potentially-dangerous heat wave.

Meteorologists say the intense heat will be caused by a ridge of high pressure - or a "heat dome".

The National Weather Service has issued a heat advisory for Ithaca and all of Central New York that's in effect through the weekend and until Monday night at 10pm.

Because of the prolonged heat the excessive heat warning for Milwaukee, Waukesha, Walworth, Racine and Kenosha Counties has been extended until 4 p.m. on Sunday.

Drink plenty of water and avoid caffeine to stay hydrated. That means heat index values will be 107-112 in the afternoon.

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Air quality levels in outdoor air are predicted to be greater than an air quality index value of 100 for ozone.

Young children and pets should never be left unattended in vehicles under any circumstances. A fan can make a person hotter at higher temperatures.

The signs of heat stroke are a throbbing headache, no sweating, a body temperature above 103 degrees, red and dry skin, nausea/vomiting, a rapid and strong pulse and someone might lose consciousness.

Given it's the first heat wave of the summer, it is important to remember and practice hot weather safety measures.

Jessica Kourkounis via Getty Images People try to cool off in a downtown fountain in sweltering heat in Philadelphia on Sunday. Check the temperatures in your neighborhood with our Current Temperatures Map.

Take extra precautions if you work or spend time outside. As far as precipitation goes, an isolated storm possible Tuesday afternoon and a better chance on the 4th...right now, it looks like much of those (if they even develop) should be out of here in time for the fireworks Wednesday night. Heat stroke is an emergency - call 9 1 1. This is risky for anyone working outside and for those without air conditioning, it can be life-threatening.

Also, a must: wearing light-colored, light-weight clothing and drinking plenty of water.