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Records broken on hottest day in a decade

Friday - 7/29/2011, 4:32pm  ET

WASHINGTON - The hottest day in the D.C. region in 10 years broke heat records at all three area airports.

The heat index reached 107 degrees Friday, mirroring the dangerous heat levels the Washington, D.C. region saw earlier this month.

According to the ABC 7 Weather Team, the record high of 104 was only two degrees shy of the highest temperature ever in Washington.

A heat advisory is in effect until 9 p.m. Friday, with heat index values to hover between 105 and 110 degrees.

By 4 p.m., all three area airports has broken records.

Reagan National Airport hit a high of 102 around 1 p.m., breaking a record set in 1993. Dulles International Airport hit 98, also breaking a 1993 record.

The high at BWI airport at 4 p.m. was 100 degrees, breaking a record that stood since 1954.

A Hyperthermia Alert has been issued in the District. Residents can call the District's Hyperthermia hotline at 202-399-709 for a ride to a cooling center.

In addition, the D.C. Department of Public Recreation has has extended pool hours for the remainder of Friday.

A Code Red air quality alert is in effect. Outdoor strenuous activity should be limited.

A heat advisory is in effect until 9 p.m. Friday, with heat index values to hover between 105 and 110 degrees.

D.C. HSEMA has several suggestions on lowering hyperthermia risks:

  • Stay indoors as much as possible.
  • Turn on the air-conditioner or fan.
  • DO NOT leave children or pets in vehicles.
  • Avoid beverages containing alcohol, caffeine or a lot of sugar.
  • Wear light-colored, lightweight and loose-fitting clothing.
  • Apply sunscreen at least 20 minutes before going outside.
  • Limit exposure to the sun (the sun is most powerful between 10 am and 3 pm).
  • Watch for heat cramps, heat exhaustion and heat stroke.
  • Be aware of signs of heat-related illness such as dizziness, nausea, and vomiting.
  • When possible, reschedule strenuous activities to early morning or evening.
  • To reduce risk during outdoor work the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments.
  • Move anyone overcome by heat to a cool and shaded location.

The temperature will cool into the evening, with the low expected to be in the high 70s.

The weekend will be clear and warm, with highs in the low-to-mid 90's.

(Copyright 2011 by WTOP. All rights reserved.)