A thunderstorm passed over Manassas, Virginia shortly after 1:30 PM producing frequent lightning. A man was struck by lightning in a parking lot.
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The episode as NWS LWX wrote it up.
A thunderstorm passed over Manassas, Virginia shortly after 1:30 PM producing frequent lightning. A man was struck by lightning in a parking lot.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before the first event at Jun 19, 9:36 AM EST, 2 hours 59 minutes earlier.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1036 AM EDT Fri Jun 19 2020 .SYNOPSIS... Low pressure at the surface and aloft will weaken while meandering over the Mid-Atlantic region through Saturday. The upper trough will start to push off to the east on Sunday. A cold front will slowly approach from the Great Lakes next week while high pressure remains offshore. && .NEAR TERM /THROUGH TONIGHT/... A few clusters of showers continue to drift northeast this morning in broad moist advection and weak instability around a closed upper low positioned over the upper Ohio Valley. These showers have become more isolated, but can't totally rule out showers at anytime. It does look like the most favored corridor will be parallel to the Blue Ridge. Upper low won't move much through the day. While highest precipitable water values (~1.5+ inches) will be along the I-95 corridor, best low level moisture, weak convergence, and proximity to upper low points to the most rapid development of showers and some thunderstorms first across the mountains around midday. These will likely spread eastward through the afternoon and early evening. With weak shear and modest instability, the severe weather threat will be low. However, storm motions will be slow, leading to potential for locally heavy rain. Given the saturated conditions over the highlands, they may be particularly susceptible to flooding issues today. Confidence is not quite there for a Flash Flood Watch, but concerns are mainly between Highland, Pendleton, Grant and Mineral counties. Precipitation placement potential along with perhaps a subtle trough axis points to possible another corridor of heavier storms across southern Maryland, though this area has been much drier recently. With warm advection in place, should see highs a little bit warmer than Thursday...in the upper 70s to lower 80s. There should be a noticeable diurnal component to the convection, though spokes of vorticity could keep some showers going into tonight. There's a decent signal for fog in the guidance, especially west of I-95, though this will likely be dependent on cloud cover. Lows in the 60s. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... Upper low will drift nearly overhead on Saturday. The column may be a bit more saturated and instability a little weaker...and overall model QPF is a little lower. However, showers will probably be more widespread with only embedded thunderstorms. Best precipitable water greater than 1.5 inches remains east of the Blue Ridge. There is some risk of slow storm motions and repetitive storms, though overall confidence in the details is lower. Ample cloud cover will again hold temperatures in the upper 70s and lower 80s. There could be a few showers lingering into the night, especially across eastern areas closer to the upper low, but coverage should decrease. Fog could again be a threat if skies clear. On Sunday, it appears the upper low will finally begin filling/opening and shifting offshore. Better opportunity for breaks of sun and warm advection will lead to highs reaching the mid 80s. With ample moisture still in place, instability should lead to the development of afternoon showers and storms, although coverage should be lower compared to Friday/Saturday as weak ridging tries to build from the west. There could be two foci for storms: across the Balt/Wash metro, closer to the upper low, and over the mountains, due to terrain circulations. Muggy with decreasing shower chances for Sunday night. && .LONG TERM /MONDAY THROUGH THURSDAY/... Increasing warmth and humidity and an approaching weak upper level disturbance will allow for diurnal showers and a few thunderstorms to develop Monday afternoon and evening. A trough of low pressure will setup over the Shenandoah Valley on Tuesday. This trough, along with stronger upper level support across the Ohio Valley, will spawn showers and a few thunderstorms. This activity will be mainly Tuesday afternoon and evening. Both Monday and Tuesday will encounter high temperatures near or lower 90s. Additional pieces of energy pivoting southeastward from the Lower Great Lakes toward the mid-Atlantic will provide support for a surface cold front to push through the region Wednesday into Thursday. Each afternoon and evening will encounter the threat once again for showers and a couple of thunderstorms. High temperatures Wednesday and Thursday could be in the upper 80s. By Friday, weak high pressure should be able to move into the region and bring slightly cooler and drier air with it. Plenty of sunshine and possibly low humidity could be the story for Friday. && .AVIATION /15Z FRIDAY THROUGH TUESDAY/... A few clusters of showers will continue to drift northeast through, mainly targeting CHO, IAD, and MRB. Periods of MVFR/IFR conditions could continue for the next hours mainly over CHO. Expect numerous showers and scattered thunderstorms to gradually develop through the midday and afternoon hours before diminishing this evening. Some could produce heavy rainfall. Lower rain chances after sunset, though fog or low clouds could develop late tonight into Saturday morning. Expect a repeat for Saturday into Saturday night, though convective development initially may be more widespread versus drifting from the west. Lower, but still present risk of showers and thunderstorms on Sunday as the persistent upper level low pulls away, mainly focused on the afternoon and evening hours. VFR conditions are expected for most of the time Monday and Tuesday, but there is a chance for showers and thunderstorms each afternoon that could bring brief MVFR conditions. && .MARINE... South winds are remaining below Small Craft Advisory Criteria and are expected to remain this way through Sunday night as surface and upper level low pressure weaken over the Mid- Atlantic region. Brief periods of gusts near the mid teens are possible tonight. Afternoon and evening showers and thunderstorms are possible over the waters each day through Sunday, which may prompt the issuance of Special Marine Warnings. Small craft conditions possible Monday and Tuesday due to a tighter pressure gradient between high pressure offshore of the mid- Atlantic Coast and developing low pressure to our west. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && SYNOPSIS...ADS NEAR TERM...ADS/IMR SHORT TERM...ADS LONG TERM...KLW AVIATION...ADS/IMR/KLW MARINE...ADS/KLW
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 131 PM EDT Fri Jun 19 2020 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-201745- 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- 131 PM EDT Fri Jun 19 2020 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...This Afternoon and Tonight Isolated instances of flooding are possible from locally heavy rain this afternoon and evening. Thunderstorms capable of producing strong winds are possible over the tidal Potomac River and Maryland's portion of the Chesapeake Bay and its surrounding tributaries this afternoon and evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Please report heavy rainfall measurements and flooding to the National Weather Service according to standard operating procedures. MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053- 055-501>506-201745- 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- 131 PM EDT Fri Jun 19 2020 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...This Afternoon and Tonight A Flash Flood Watch is in effect over the Potomac Highlands and parts of the Shenandoah Valley through 11 PM this evening. Isolated instances of flooding are possible from locally heavy rain this afternoon and evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Please report heavy rainfall measurements and flooding to the National Weather Service according to standard operating procedures.
The Sterling radar (KLWX), 27 km away, was scanning. The volume nearest the first event began at 17:35 UTC.
1 lightning. Local standard time, as filed.
One man was struck by lightning in a parking lot outside of a grocery store.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2020Every state in 2020This day in weather historyWarnings in Virginia, June 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 906584.