Alert archive / Virginia / Flash Flood Warnings in 2022
Flash Flood Warning 43, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Aug 4, 2022, 1:52 PM EDT for Greene County, Madison County, Virginia. It was in force for 109 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 4, 2022, 1:52 PM EDT (17:52 UTC)
- Expired
- Aug 4, 2022, 3:41 PM EDT
- In force
- 109 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, VA, Madison County, VA
The radar
The Sterling radar (KLWX), 103 km from the middle of the area, began a volume at 17:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.9 hours before the alert went out and 107 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 729 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1307 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Aug 4, 10:19 AM EDT, 3 hours 33 minutes earlier.
Area forecast discussion, Aug 4, 10:19 AM EDT, 3 hours 33 minutes before
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</html>Hazardous weather outlook, Aug 4, 5:00 AM EDT, 8 hours 52 minutes before
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 500 AM EDT Thu Aug 4 2022 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ052>057-050900- 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-Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George- 500 AM EDT Thu Aug 4 2022 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...Today and Tonight A Heat Advisory is in effect from 11 AM to 8 PM EDT for most of the outlook area. Elsewhere, heat index values may approach 105 degrees for a few hours this afternoon. Scattered showers and thunderstorms may produce heavy rainfall and isolated instances of flooding or wind damage this afternoon and evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a threat of scattered instances of flooding Friday afternoon and night. In addition, thunderstorms may produce localized damaging wind gusts or large hail. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible at times into the weekend. MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- WVZ050>053-055-050900- 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-Hampshire-Morgan-Berkeley-Jefferson- Hardy- 500 AM EDT Thu Aug 4 2022 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Today and Tonight A Heat Advisory is in effect from 11 AM until 8 PM for portions of central Maryland. Elsewhere, heat index values around 100 to 105 degrees are possible for a few hours this afternoon. Scattered to numerous showers and thunderstorms may produce heavy rainfall and isolated instances of flooding or wind damage this afternoon and evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a threat of scattered instances of flooding Friday afternoon and night. In addition, thunderstorms may produce localized damaging wind gusts or large hail. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible at times into the weekend. MDZ001-501-502-VAZ503-504-WVZ501>506-050900- Garrett-Extreme Western Allegany-Central and Eastern Allegany- Western Highland-Eastern Highland-Western Grant-Eastern Grant- Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- 500 AM EDT Thu Aug 4 2022 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...Today and Tonight Scattered to numerous showers and thunderstorms may produce heavy rainfall and instances of flooding or wind damage this afternoon. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a threat of scattered instances of flooding Friday afternoon and night. In addition, thunderstorms may produce localized damaging wind gusts or large hail. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible at times into the weekend. DHOF
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 10:05 PM EDT | Small Craft Advisory | LWX | 26 hr | |
| Aug 4, 1:56 PM EDT | Severe Thunderstorm Warning | LWX | Greene, Madison | 26 min |
| Aug 4, 3:30 PM EDT | Flash Flood Warning | LWX | Rockingham | 87 min |
| Aug 4, 3:41 PM EDT | Areal Flood Warning | LWX | Greene, Madison | 73 min |
| Aug 4, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Frederick, Shenandoah, Warren, City of Winchester | 29 min |
| Aug 4, 4:57 PM EDT | Areal Flood Warning | LWX | Rockingham | 93 min |
| Aug 4, 5:29 PM EDT | Special Marine Warning | LWX | 91 min | |
| Aug 4, 5:30 PM EDT | Special Marine Warning | LWX | 90 min | |
| Aug 4, 5:31 PM EDT | Special Marine Warning | LWX | 39 min | |
| Aug 4, 6:07 PM EDT | Special Marine Warning | LWX | 21 min | |
| Aug 4, 6:16 PM EDT | Special Marine Warning | LWX | 36 min | |
| Aug 4, 6:21 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Orange | 39 min |
| Aug 4, 6:28 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 47 min |
| Aug 4, 6:51 PM EDT | Special Marine Warning | LWX | 39 min | |
| Aug 4, 6:52 PM EDT | Special Marine Warning | LWX | 98 min | |
| Aug 4, 7:07 PM EDT | Special Marine Warning | LWX | 83 min | |
| Aug 4, 7:24 PM EDT | Special Marine Warning | LWX | 96 min | |
| Aug 4, 7:24 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Prince William | 36 min |
| Aug 4, 7:41 PM EDT | Special Marine Warning | LWX | 94 min | |
| Aug 4, 7:43 PM EDT | Special Marine Warning | LWX | 92 min | |
| Aug 4, 2:35 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 28 min |
| Aug 4, 3:00 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 45 min |
| Aug 4, 3:23 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 52 min |
| Aug 4, 4:07 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 25 min |
| Aug 4, 5:08 PM EDT | Flash Flood Warning | LWX | Allegany, Garrett | 3 hr |
| Aug 4, 5:19 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 41 min |
| Aug 4, 5:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Howard, Montgomery, Prince George's | 51 min |
| Aug 4, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 48 min |
| Aug 4, 5:50 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Aug 4, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Prince George's, City of Baltimore | 47 min |
| Aug 4, 6:04 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 2 hr |
| Aug 4, 6:09 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 26 min |
| Aug 4, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 41 min |
| Aug 4, 6:25 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 20 min |
| Aug 4, 6:53 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 52 min |
| Aug 4, 7:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 47 min |
| Aug 4, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 45 min |
| Aug 4, 7:48 PM EDT | Areal Flood Warning | LWX | Allegany, Garrett | 2 hr |
| Aug 4, 1:06 PM EDT | Severe Thunderstorm Warning | LWX | Grant, Hampshire, Hardy, Mineral | 15 min |
| Aug 4, 4:24 PM EDT | Severe Thunderstorm Warning | LWX | Berkeley, Jefferson | 35 min |
Nearby
Flash Flood Warnings in Virginia, 2022Every flash flood warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.