
Thunderstorm
18.7 6:19 PM 18:19 – 19.7 1:00 AM 01:00
Severe Thunderstorm Watch issued July 18 at 2:19PM EDT until July 18 at 9:00PM EDT by NWS Baltimore MD/Washington DC SEVERE THUNDERSTORM WATCH 496 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 5 COUNTIES IN NORTH CENTRAL MARYLAND WASHINGTON IN SOUTHERN MARYLAND CHARLES ST. MARYS IN WESTERN MARYLAND ALLEGANY GARRETT IN VIRGINIA THIS WATCH INCLUDES 34 COUNTIES IN CENTRAL VIRGINIA ALBEMARLE CITY OF CHARLOTTESVILLE CITY OF FREDERICKSBURG GREENE KING GEORGE NELSON ORANGE SPOTSYLVANIA IN NORTHERN VIRGINIA ARLINGTON CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM STAFFORD IN NORTHWEST VIRGINIA CITY OF WINCHESTER CLARKE FREDERICK MADISON PAGE RAPPAHANNOCK SHENANDOAH WARREN IN WESTERN VIRGINIA AUGUSTA CITY OF HARRISONBURG CITY OF STAUNTON CITY OF WAYNESBORO HIGHLAND ROCKINGHAM IN WEST VIRGINIA THIS WATCH INCLUDES 8 COUNTIES IN EASTERN WEST VIRGINIA GRANT HAMPSHIRE HARDY MINERAL PENDLETON IN PANHANDLE WEST VIRGINIA BERKELEY JEFFERSON MORGAN THIS INCLUDES THE CITIES OF ADAMS MORGAN, ADEN, AIRLIE, ALBIN, ALEXANDRIA, ALONZAVILLE, ALSOP, ANNANDALE, ANTIOCH, ARCO, ARKENDALE, ARLINGTON, BAKERTON, BALLSTON, BARCROFT, BEAN SETTLEMENT, BENTONVILLE, BERKELEY SPGS, BERRYVILLE, BERRYVILLE, BETHEL, BLOOMERY, BRADY, BRAKE, BRANDYWINE, BROKENBURG, BROOKFIELD, BUCKTON, BURKE, BURR HILL, CABINS, CALIFORNIA, CALLAWAY, CARDOVA, CATALPA, CEDAR GROVE, CEDARVILLE, CHANTILLY, CHARLES TOWN, CHARLOTTESVILLE, CHERRYDALE, CHESTER GAP, CHRISTIAN, CHURCHVILLE, CLARY, CLOVER CREEK, COMPTON, COUNTRYSIDE, CULPEPER, CUMBERLAND, DAHLGREN, DALE CITY, DAMERON, DULLES INTERNATIONAL AIRPORT, ELLERSLIE, EVERONA, FAIRFAX, FAIRFAX STATION, FAIRVIEW, FALLS CHURCH, FALMOUTH, FISHER, FIVE FORKS, FORDSVILLE, FORT ASHBY, FRANKLIN, FREDERICKSBURG, FRENCHBURG, FRONT ROYAL, FROSTBURG, GAINESBORO, GARRISONVILLE, GATEWOOD, GLEEDSVILLE, GLEN ECHO, GLENDIE, GRANTSVILLE, GREENFIELD, HAGERSTOWN, HALFWAY, HAMBURG, HANCOCK, HARRISONBURG, HAWKINSTOWN, HEADSVILLE, HIGHTOWN, HOWELLSVILLE, INDEPENDENT HILL, KEYSER, KIMBALL, KLINE GAP, LAHORE, LAKE RIDGE, LANDES, LANGLEY, LEESBURG, LEXINGTON PARK, LIBERTY, LINVILLE, LUCKETTS, LURAY, MADISON MILLS, MADISON RUN, MAGNOLIA, MANASSAS, MANASSAS PARK, MARTINSBURG, MASONVILLE, MASSAPONAX, MCCOOLE, MCDOWELL, MCLEAN, MCNEILL, MIDDLEWAY, MILL GAP, MILLVILLE, MONTCLAIR, MONTEBELLO, MONTEREY, MOOREFIELD, MOUNT CLIFTON, MOUNT JACKSON, MOUNTAIN LAKE PARK, MUSTOE, NASONS, NEW CREEK, OAK FLAT, OAK GROVE, OAKLAND, ORANGE, OVERTON, PARTLOW, PAW PAW, PETERSBURG, PINEY POINT, POINTS, POST OAK, PURGITSVILLE, RANSON, RAPIDAN, RAWLINGS, REAGAN NATIONAL AIRPORT, RESTON, REVA, RIDGE, RIDGEVILLE, RILEYVILLE, RIVERCREST, RIVERTON, ROLLINS FORK, ROMNEY, ROSSLYN, RUDDLE, RUSSELLDALE, SEYMOURVILLE, SHADY GROVE, SHADY GROVE, SHENANDOAH JUNCTION, SHILOH, SKYLAND, SMITH CROSSROADS, SOTTERLEY, SPOTSYLVANIA COURT, SPOTTSWOOD, SPRINGFIELD, ST. CHARLES, STAUNTON, STERLING PARK, STEVENSBURG, STRASBURG, STRINGTOWN, STUARTS DRAFT, SUGAR GROVE, THREE CHURCHES, TURNBULL, TWYMANS MILL, UNIONVILLE, WALDORF, WAPOCOMO, WARRENTON, WASHINGTON, WAYNESBORO, WELTON, WIDEWATER, WINCHESTER, WINSTON, WOODBRIDGE, AND WOODSTOCK.
National Weather Service
Air quality
17.7 8:40 PM 20:40 – 19.7 4:00 AM 04:00
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Hagerstown area. Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon. Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children, people suffering from asthma, heart disease or other lung diseases and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles visit the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
National Weather Service
Thunderstorm
18.7 6:41 PM 18:41 – 18.7 7:30 PM 19:30
Severe Thunderstorm Warning issued July 18 at 2:41PM EDT until July 18 at 3:30PM EDT by NWS Baltimore MD/Washington DC SVRLWX The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Southeastern Washington County in north central Maryland... Southwestern Frederick County in north central Maryland... North central Loudoun County in northern Virginia... Northeastern Jefferson County in the Panhandle of West Virginia... * Until 330 PM EDT. * At 241 PM EDT, a severe thunderstorm was located near Shepherdstown, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. 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... Frederick, Shepherdstown, Harry Grove Stadium, Ballenger Creek, Brunswick, Walkersville, Boonsboro, Braddock Heights, Harpers Ferry, Clover Hill, Discovery-Spring Garden, Linganore-Bartonsville, Adamstown, Jefferson, Myersville, Keedysville, Buckeystown, Sharpsburg, Rosemont, and Rohrersville. For your protection move to an interior room on the lowest floor of a building. Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. A Tornado Watch remains in effect until 900 PM EDT for north central Maryland.
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