3 products issued by NWS for: Reston VA
Severe Thunderstorm Warning
Severe Thunderstorm Warning
MDC021-031-VAC059-107-172130-
/O.NEW.KLWX.SV.W.0369.190717T2043Z-190717T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Baltimore MD/Washington DC
443 PM EDT Wed Jul 17 2019
The National Weather Service in Sterling Virginia has issued a
* Severe Thunderstorm Warning for...
Montgomery County in central Maryland...
Southeastern Frederick County in north central Maryland...
Eastern Loudoun County in northern Virginia...
North central Fairfax County in northern Virginia...
* Until 530 PM EDT.
* At 442 PM EDT, a severe thunderstorm was located over Lansdowne,
moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches
to fall. This could injure those outdoors, as well as
damage homes and vehicles. Roadways may become blocked by
downed trees. Localized power outages are possible.
Unsecured light objects may become projectiles.
* Locations impacted include...
Germantown, Rockville, Gaithersburg, Reston, Leesburg, Herndon,
Damascus, Broadlands, Lansdowne, Lowes Island, Brambleton,
Poolesville, Aspen Hill, Potomac, North Bethesda, Ashburn,
Montgomery Village, Sterling, North Potomac and Redland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3895 7751 3919 7761 3939 7722 3903 7706
TIME...MOT...LOC 2042Z 252DEG 25KT 3911 7749
HAIL...<.75IN
WIND...60MPH
$$
BKF
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 435 PM EDT Wed Jul 17 2019 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-181000- Chesapeake Bay north of Pooles Island MD- Chesapeake Bay from Pooles Island to Sandy Point MD- Chesapeake Bay from Sandy Point to North Beach MD- Chesapeake Bay from North Beach to Drum Point MD- Chesapeake Bay from Drum Point MD to Smith Point VA- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island-District of Columbia-Southern Baltimore-Prince Georges- Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George- 435 PM EDT Wed Jul 17 2019 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and adjacent counties in central Maryland and northern Virginia as well as the District of Columbia. .DAY ONE...Tonight A Heat Advisory is in effect for the entire area from until 8 PM this evening. Thunderstorms will be capable of producing damaging wind gusts late this afternoon and evening. The strongest storms are most likely in the Washington Metropolitan area between 5 PM and 6 PM, and the Baltimore Metro area between 5:30 PM and 7 PM. Localized flooding is possible from heavy rain associated with thunderstorms during this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Heat indices may approach 105 degrees Thursday afternoon. Dangerous heat and humidity are likely Friday through Sunday across the entire area. Heat indices of 110 to 115 degrees are possible during the afternoon and evening hours each day, and heat indices may hold in the 80s and 90s at night. If the prolonged heat and humidity is realized, it will become a significant threat to anyone exposed to the heat for an extended period of time. .SPOTTER INFORMATION STATEMENT... Please report any wind damage to the National Weather Service. $$
Heat Advisory
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1133 AM EDT Wed Jul 17 2019 DCZ001-MDZ011-013-014-016>018-504-506-508-VAZ052>057-172345- /O.CON.KLWX.HT.Y.0001.000000T0000Z-190718T0000Z/ 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- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George- 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 1133 AM EDT Wed Jul 17 2019 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX VALUES...Between 105 and 109 due to temperatures in the mid 90s, and dewpoints in the lower 70s. * 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. && $$