NOAA logo  
alert map
Radar valid at 800 pm EDT, Jul 10th 2024

alert legend

DCZ001-MDZ011-013-014-016>018-504-506-VAZ053>055-057-527-101700-
/O.UPG.KLWX.HT.Y.0009.240710T1600Z-240711T0000Z/
/O.NEW.KLWX.EH.W.0005.240710T1600Z-240711T0000Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Fairfax-Arlington/Falls Church/Alexandria-Stafford-King George-
Central and Southeast Prince William/Manassas/Manassas Park-
Including the cities of Washington, Baltimore, Bowie,
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel,
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate,
Severna Park, Arnold, Odenton, St. Charles, Waldorf,
Lexington Park, California, Chesapeake Beach, Huntingtown,
Dunkirk, North Beach, Lusby, Prince Frederick, Bethesda,
Rockville, Gaithersburg, Silver Spring, Columbia, Ellicott City,
Reston, Herndon, Annandale, Centreville, Chantilly, McLean,
Franconia, Arlington, Alexandria, Falls Church, Falmouth,
Dahlgren, Dale City, Manassas, Woodbridge, Lake Ridge,
and Montclair
459 AM EDT Wed Jul 10 2024

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT
THIS EVENING...

* WHAT...Dangerously hot conditions with heat index values up to
110 expected.

* WHERE...Portions of central and southern Maryland, The District
of Columbia, and portions of the northern neck of Virginia.

* WHEN...From noon today to 8 PM EDT.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

* ADDITIONAL DETAILS...Very warm and humid conditions will persist
into the overnight hours. Ensure to stay hydrated and find ways
to stay cool.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

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. 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 9 1 1.

&&

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.