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Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1239 PM EDT Thu Jul 20 2017


MDZ003-502-VAZ027>031-WVZ051>053-202300-
/O.CON.KLWX.HT.Y.0004.000000T0000Z-170720T2300Z/
Washington-Central and Eastern Allegany-Shenandoah-Frederick VA-
Page-Warren-Clarke-Morgan-Berkeley-Jefferson-
Including the cities of Hagerstown, Cumberland, Strasburg,
Woodstock, Mount Jackson, New Market, Winchester, Luray,
Shenandoah, Stanley, Front Royal, Berryville, Paw Paw,
Martinsburg, Charles Town, and Shepherdstown
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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$



Hazardous Weather Outlook

Hazardous Weather Outlook...UPDATED
National Weather Service Baltimore MD/Washington DC
1051 AM EDT Thu Jul 20 2017

MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053-
055-501>506-211000-
Washington-Frederick MD-Carroll-Northern Baltimore-
Extreme Western Allegany-Central and Eastern Allegany-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Northern Fauquier-Southern Fauquier-Western Highland-
Eastern Highland-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Hampshire-Morgan-Berkeley-Jefferson-Hardy-Western Grant-
Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
1051 AM EDT Thu Jul 20 2017

This Hazardous Weather Outlook is for eastern West Virginia,
northern and central Virginia, and central and western Maryland
with the exception of Garrett County.

.DAY ONE...Today and Tonight

A heat advisory is in effect until 7 PM for lower elevation
locations for heat indices of 100 to 105 degrees.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Heat indices of 105 degrees or higher are likely for Piedmont
areas east of the Blue Ridge Friday through Sunday. Heat indices
of 100 degrees or higher are likely for lower elevations west of
the Blue Ridge today through Saturday.

Isolated severe thunderstorms with damaging winds and hail are
possible Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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