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Excessive Heat, Code Red Air Warnings This Weekend

As temperatures climb above 100 and heat index values reach 110+ in Herndon, what you can do to stay cool.

Excessive heat and unhealthy air warnings are in effect for the Herndon area for much of this weekend.

The excessive heat warning remains in effect until 8 p.m. Friday and resumes Saturday from 11 a.m. to 10 p.m.

A Code Red air quality alert—indicating that air pollution concentrations have reached a level harmful to all populations—has also been issued for Saturday by the Metropolitan Washington Council of Governments.

The National Weather Service says temperatures will reach up to 105 in some areas of Northern Virginia on Saturday. The heat index will reach 110 on Saturday, the service said.

The warnings carry a high risk of heat exhaustion or other heat-related illness for those without air-conditioning or those spending time outdoors for an extended period of time.

The county offered the following suggestions:

For People:

  • Drink plenty of fluids. Drink two to four glasses of cool fluids each hour if you are in a hot environment.
  • Stay in an air-conditioned room
  • Stay out of the sun
  • Check in on relatives and neighbors.  
  • Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening.
  • Know the signs and symptoms of heat exhaustion and heat stroke. wear lightweight and loose-fitting clothing when possible and drink plenty of water.  
  • To reduce risk during outdoor work, the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. anyone overcome by heat should be moved to a cool and shaded location.

Conservation/Household Tips:

  • Refuel vehicles after dusk and limit idling.
  • Limit driving, if possible 
  • Turn off lights and electronics when not in use.  
  • Keep air conditioning no lower than 78 degrees. 
  • Avoid mowing lawns with gasoline-powered motors. 
  • Don’t use chemicals on your lawn and gardens.  
  • Put off painting until air quality improves.

If you or someone you know begins to experience a heat-related emergency, officials urge you to call 9-1-1 immediately.

For more tips, visit Fairfax County's emergency blog.

Sunday should offer some relief: Though temperatures will hover around 98 witha heat index as high as 104, showers and thunderstorms will likely roll through the area after 2 p.m.

Mark Carolla July 07, 2012 at 06:17 PM
The Weather Channel is warning of possible - probable - severe storms hitting us tomorrow -Sunday. What contingency and response plans are the utilities and our local governments making to deal with it? As one with some medical concerns are there recommendations that those in that category evacuate? Responding to these type of concerns after the storm when communications are totally down is not adequate. I don't think the human toll of this week has been evaluated - thousands of dollars of medicines lost; asthmatic, elderly, children and diabetics in hospital ERs....millions of food supplies destroyed. Let's see some leadership --- beginning at the local micro level in dealing with these preparations. I'm not whining - I'm volunteering my thoughts and whatever skills I have at this and looking for our media, utilities and governments to get out of the reactive mode.

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