Interactive NWS Alert
Radar valid at 800 pm EDT, Jul 20th 2020
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
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,
Aberdeen, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair,
Reston, Herndon, Annandale, Centreville, Chantilly, McLean,
Franconia, Arlington, Alexandria, Falls Church, Falmouth,
Fredericksburg, and Dahlgren
804 PM EDT Sun Jul 19 2020
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM EDT MONDAY...
...HEAT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...
* WHAT...Heat index values up to 109 expected.
* WHERE...The District of Columbia, and portions of central and
southern Maryland and central and northern Virginia.
* WHEN...From noon to 8 PM EDT Monday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses to occur.
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.
CDC recommends that if you need to go to a cooling center, wear a
cloth face covering. While you are there, wash your hands with
soap, or use hand sanitizer, often. Face covers should not be
used by children under the age of 2. They also should not be used
by people having trouble breathing, or who are unconscious,
injured, or can't remove the mask themselves.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government