Heavy showers and thunderstorms ahead of a cold front led to flash flooding for portions of Washington County in Maryland.
Every event with a place to put it. Tap one for its entry below.
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.
Heavy showers and thunderstorms ahead of a cold front led to flash flooding for portions of Washington County in Maryland.
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 Jul 22, 8:26 PM EST, 8 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 318 PM EDT Mon Jul 22 2024 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ053>057-527-231930- 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- 318 PM EDT Mon Jul 22 2024 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...This Afternoon and Tonight Multiple rounds of showers and thunderstorms move across the area through tonight. Heavy rainfall could result in scattered instances of flooding, mainly in the urban centers. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday A few instances of flash flooding are possible, especially over the Baltimore/Washington DC metro areas and in areas that see repetitive rounds of slow-moving thunderstorms through Thursday. .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>053-055-231930- 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- 318 PM EDT Mon Jul 22 2024 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...This Afternoon and Tonight Multiple rounds of showers and thunderstorms move across the area through tonight. Heavy rainfall could result in scattered instances of flooding, mainly in the urban centers. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday A few instances of flash flooding are possible over areas that see repetitive rounds of slow-moving thunderstorms through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ001-501-502-VAZ503-504-WVZ501>506-231930- Garrett-Extreme Western Allegany-Central and Eastern Allegany- Western Highland-Eastern Highland-Western Grant-Eastern Grant- Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- 318 PM EDT Mon Jul 22 2024 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...This Afternoon and Tonight Multiple rounds of showers and thunderstorms move across the area through tonight. Heavy rainfall could result in isolated instances of flooding, mainly in urban town and city centers. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday A few instances of flash flooding are possible over areas that see repetitive rounds of slow-moving thunderstorms through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
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</html>The Sterling radar (KLWX), 82 km away, was scanning. The volume nearest the first event began at 01:36 UTC.
3 flash flood. Local standard time, as filed.
Greencastle Pike near Pinehill Drive had high water flowing over the roadway.
Garden View Road near Troupe Run was closed due to high flowing water over the road.
Broadfording Road was closed near McDade Road due to high water flowing across the highway.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2024Every state in 2024This day in weather historyWarnings in Maryland, July 2024
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 2026-10-01. Each event’s entry at NCEI: 1185298, 1185299, 1185300.