Archive by Author | Fairfax County Emergency Information

Video: Heat Advisory Issued Today and Heat Safety Tips

Posted at 1:15 p.m.

The National Weather Service has issued a heat advisory today, in effect until 8 p.m. tonight.

Heat index values will be up to 107 degrees with maximum temperatures in the mid to upper 90s. The heat and humidity may cause heat stress during outdoor exertion or extended exposure.

Staff from our Office of Emergency Management, Health Department and Office to Prevent and End Homelessness joined us to discuss today’s heat advisory, what you can do to stay cool and safe in the summer heat, as well as what you should be aware of and can do to assist our vulnerable population.

For more information on extreme heat, visit www.fairfaxcounty.gov/emergency/hazards/extreme-heat.htm. For the current weather forecast, visit www.fairfaxcounty.gov/emergency/weather-forecast.htm.

Heat Advisory

Posted at 10:30 a.m.

Heat Advisory issued for July 20, 2017

The National Weather Service has issued a Heat Advisory, in effect from noon to 7 p.m. today, Thursday, July 20. A Heat Advisory means that a period of high temperatures is expected.

Heat index values of up to around 105 degrees are expected.

The combination of high temperatures and high humidity will create a situation in which heat illnesses are possible during outdoor exertion or extended exposure.

Extended excessive heat is expected across the region through the weekend; severe thunderstorms also are possible tonight through the weekend.

Heat Advisory Issued for July 20m, 2017

 

Precautionary / Preparedness Actions

  • Never leave children or pets alone in a closed vehicle.
  • Take extra precautions if you work or spend time outside.
  • When possible, reschedule strenuous activities to early morning or evening.
  • Wear light weight and loose fitting clothing when possible and drink plenty of water.
  • Drink plenty of fluids: Drink two to four glasses of cool fluids each hour. Your body needs water to keep cool. Drink water even if you don’t feel thirsty. Do not drink caffeinated or alcoholic beverages because they dehydrate the body.

To reduce risk during outdoor work, take frequent rest breaks in shaded or air conditioned environments such as shopping malls, etc. Resting for just two hours in air conditioning can significantly reduce heat-related illnesses. Consider spending the warmest part of the day in public buildings such as movie theaters, shopping malls and other community facilities. You can also visit one of Fairfax County’s Cooling Centers.

Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency — call or text 9-1-1 immediately.

Air Quality Alert

The Metropolitan Washington Council of Governments has issued a Code Orange Air Quality Alert today for the D.C. metro area.

A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children, people suffering from asthma, heart disease or other lung diseases and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors.


Fairfax Alerts

Severe Thunderstorm Warning Issued for Fairfax County

Posted at 4:35 p.m.

Thunderstorm Warning

The National Weather Service in Sterling has issued a Severe Thunderstorm Warning until 5:15 p.m. for parts of Fairfax County.

At 4:24 p.m., severe thunderstorms were located along a line extending from Mclean to Springfield, moving east at 35 mph; 60 mph wind gusts are possible.

  • Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles.
  • Roadways may become blocked by downed trees.
  • Localized power outages are possible.
  • Unsecured light objects may become projectiles.

Precautions / Preparedness Actions

  • Get indoors to protect yourself from wind and lightning.
  • Trees around you may be downed from damaging winds, so if you are near large trees, move to an interior room on the lowest floor.
  • Don’t drive underneath trees or in wooded areas until the threat has passed.

 

Severe Thunderstorm Watch and Heat Advisory

Posted at 3 p.m.

Thunderstorm WatchA severe thunderstorm watch, issued by the National Weather Service, remains in effect until 9 p.m. this evening. In addition, a heat advisory is in effect until 7 p.m.

Live Weather Radar

Severe Thunderstorm Watch

A severe thunderstorm watch is issued by the National Weather Service when conditions are favorable for the development of severe thunderstorms in and close to the watch area. A severe thunderstorm by definition is a thunderstorm that produces one inch hail or larger in diameter and/or winds equal or exceed 58 miles an hour.

Heat Advisory

A Heat Advisory is issued when the heat index value is expected to reach 105 to 109 degrees (east of the Blue Ridge) or 100 to 104 degrees (west of the Blue Ridge) within the next 12 to 24 hours. A Heat Advisory may be issued for lower criteria if it is early in the season or during a multi-day heat wave.

Heat Advisory in Effect Today, July 13, Beginning at Noon

Posted at 9:29 a.m.

Heat Advisory

The National Weather Services has issued a Heat Advisory, in effect from noon today, Thursday, July 13, until 8 p.m. this evening.

Temperatures in the mid to upper 90s are expected with heat index values around 105 degrees. (View the complete forecast.)

A heat advisory means that a period of high temperatures is expected. The combination of high temperatures and high humidity will create a situation in which heat illnesses are possible. There is a risk of heat-related illness for those without air conditioning or those outdoors for an extended period.

Precautions and Preparedness Actions

Take extra precautions if you work or spend time outside.

  • When possible, reschedule strenuous activities to early morning or evening.
  • Wear light weight and loose fitting clothing.
  • 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.

Know the Signs and Symptoms of Heat Exhaustion and Heat Stroke

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