« View county listHeat Advisory
Frederick MD-Carroll-Northern Baltimore-Northwest Montgomery-
Central and Southeast Montgomery-Northwest Howard-
Central and Southeast Howard-Northwest Harford-Nelson-Albemarle-
Northern Fauquier-Southern Fauquier-Western Loudoun-
Including the cities of Frederick, Ballenger Creek, Eldersburg,
Westminster, Reisterstown, Cockeysville, Germantown, Damascus,
Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon,
Columbia, Ellicott City, Jarrettsville, Lovingston,
Charlottesville, Stanardsville, Madison, Washington, Orange,
Gordonsville, Culpeper, Fredericksburg, Warrenton, Turnbull,
Purcellville, Leesburg, Ashburn, and Sterling
1239 PM EDT Thu Jul 20 2017
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
* HEAT INDEX VALUES...Up to 104 due to temperatures in the mid
90s, and dewpoints in the upper 60s.
* IMPACTS...The heat and humidity may cause heat stress during
outdoor exertion or extended exposure.
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.
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 light weight 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. Heat stroke
is an emergency - call 911.