Stationary thunderstorms along the Bay Breeze resulted in localized rainfall amounts of two to four inches near Baltimore in an hour or two.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
Stationary thunderstorms along the Bay Breeze resulted in localized rainfall amounts of two to four inches near Baltimore in an hour or two.
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 Aug 14, 1:56 PM EST, 1 hour 31 minutes earlier.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 256 PM EDT Thu Aug 14 2025 .SYNOPSIS... A cold front will approach and move through the forecast area today before stalling to the south on Friday. Surface high pressure briefly builds overhead Saturday and Sunday ahead of another cold front set to move through the region early next week. && .NEAR TERM /THROUGH TONIGHT/... Latest surface observations have a weak cold front tracking southward across the southernmost portions of the forecast area. Peak heating with a hot and humid airmass combined with the frontal passage is yielding showers and thunderstorms tracking across the forecast area. Isolated to scattered showers and thunderstorms continue this afternoon and into the evening, with damaging wind gusts and heavy rain as the primary threats. PWATS nearing 2 inches will lead to strong thunderstorms capable of producing heavy rain. Storm motion and coverage will inhibit flash flooding threat across the area. Conditions dry out overnight as the cold front moves further to the south. Overnight low temperatures will be in the 60s for those west of the Blue Ridge and low to mid 70s along and east of the Blue Ridge. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... The aforementioned cold front will be located just south of the forecast area come Friday morning and is forecast to slowly drift south towards the Carolinas throughout the day. The nearby front will yield afternoon shower and thunderstorm chances, mainly in the southern and eastern portions of the forecast area. To the north, surface high pressure centered over Quebec will extend south over the Mid-Atlantic. This dry Canadian airmass will limit precipitation chances to 40% or less and additionally provide slightly cooler temperatures. High temperatures Friday and Saturday will be in the 80s for most with higher elevations staying in the 70s. On Saturday, surface high pressure remains overhead as the front remains over the Carolinas. An isolated rain shower or thunderstorm cannot be ruled out sure to the proximity of the front, although no widespread precipitation is expected. Conditions dry out overnight Saturday with low temperatures expected to be in the 60s for most. && .LONG TERM /SUNDAY THROUGH THURSDAY/... The high should push far enough to the east by Sunday that the airmass trajectories should be more continental versus marine, allowing temperatures to spike to the upper 80s to mid 90s. Primary forcing with a trough and associated front should remain far enough to the north to keep precipitation chances to a minimum. However, some remnant showers could move into the area Sunday night. This front will slip southward into the area Monday. However, it may make enough progress that the highest thunderstorm chances will reside across southern parts of the forecast area. Toward the middle of the week, the front may stall out or waver across the Mid Atlantic. Surface high pressure will build southeastward from Canada across New England. The high latitude wave train will cause the upper level ridge axis to retrograde from the central US to the Rockies, resulting in northwesterly flow along the east coast. The current forecast favors a cloudier and cooler solution, with onshore flow leading to more stable conditions east of the mountains. However, with the stalled front nearby along with terrain forcing, showers and thunderstorms will be in the forecast each day. && .AVIATION /19Z THURSDAY THROUGH TUESDAY/... Shower and thunderstorm chances remain this afternoon and evening with the greatest chances at KCHO where a front will be nearby. Brief restrictions are possible across all terminals as isolated to scattered showers and thunderstorms remain possible. Have a TEMPO group at all terminals except KMRB where there is less confidence. Outside of precipitation VFR conditions are expected. Northwest winds blowing 5 to 10 knots tonight to easterly on Friday, blowing around 5 knots. Light winds are expected both nights. Prevailing VFR conditions are expected on Saturday as winds remain light out of the east. KCHO and KMRB have the greatest chance of seeing an isolated afternoon shower or thunderstorm, although precipitation farther east cannot be ruled out. An isolated thunderstorm is possible late Sunday into Monday as a weak front moves through the area. Easterly flow may lead to sub-VFR ceilings Monday night into Tuesday. && .MARINE... Winds remain well below Small Craft Advisory criteria through the weekend, gusting 10 knots or less. Light northwest winds today become light and variable overnight. Winds shift to easterly Friday, blowing 5 to 10 knots in the afternoon. On Saturday, winds remain light out of the east. Isolated thunderstorms are possible over the waters Thursday and Friday with SMWs possible, although not likely. No marine hazards are expected on Saturday as precipitation is expected to remain west of the waters. Southerly winds on Sunday will become northerly Sunday night or Monday as a front moves through the area. Thunderstorm chances look to remain fairly isolated. Easterly winds may increase Tuesday, but it remains uncertain if advisories will be needed. && .TIDES/COASTAL FLOODING... Elevated tidal anomalies look to continue through the end of the week given the recent full moon and light winds. While minor tidal flooding is not expected, some cycles could go into Action stage during the high astronomical tides (especially at Annapolis and perhaps Dahlgren/Alexandria). && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && SYNOPSIS...AVS NEAR TERM...AVS SHORT TERM...AVS LONG TERM...ADS AVIATION...ADS/AVS MARINE...ADS/AVS TIDES/COASTAL FLOODING...LWX
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 407 PM EDT Thu Aug 14 2025 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ053>057-527-152015- 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-Cecil-Southern Baltimore- Prince Georges-Anne Arundel-Charles-St. Marys-Calvert- Central and Southeast Montgomery-Central and Southeast Howard- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Stafford-Spotsylvania-King George- Central and Southeast Prince William/Manassas/Manassas Park- 407 PM EDT Thu Aug 14 2025 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and I-95 corridor through central Maryland, northern Virginia, and District of Columbia. .DAY ONE...Tonight A few severe thunderstorms are possible this afternoon. Special Marine Warnings will also be needed due to gusty winds over the waters. Thunderstorms this afternoon are producing very heavy rainfall, and may result in isolated instances of flash flooding, especially in sensitive urban areas with poor drainage. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- 526-WVZ050>053-055-152015- Washington-Frederick MD-Carroll-Northern Baltimore- Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta- Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson- Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun-Northern Virginia Blue Ridge- Central Virginia Blue Ridge-Northwest Prince William-Hampshire- Morgan-Berkeley-Jefferson-Hardy- 407 PM EDT Thu Aug 14 2025 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ501-502-509-510-VAZ503-504-WVZ501>506-152015- Extreme Western Allegany-Central and Eastern Allegany- Western Garrett-Eastern Garrett-Western Highland-Eastern Highland- Western Grant-Eastern Grant-Western Mineral-Eastern Mineral- Western Pendleton-Eastern Pendleton- 407 PM EDT Thu Aug 14 2025 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Sterling radar (KLWX), 92 km away, was scanning. The volume nearest the first event began at 20:28 UTC.
1 flash flood. Local standard time, as filed.
North Point Road closed between Willow Road and German Hill Road for 6 inches or more of flowing water over the bridge at Bread and Cheese Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2025Every state in 2025This day in weather historyWarnings in Maryland, August 2025
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: 1276064.