Alert archive / Virginia / Tornado Warnings in 2022
Tornado Warning 38, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Sep 12, 2022, 4:52 PM EDT for Fairfax County, Prince William County, Virginia; Charles County, Maryland. It was in force for 23 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
- Sep 12, 2022, 4:52 PM EDT (20:52 UTC)
- Expired
- Sep 12, 2022, 5:15 PM EDT
- In force
- 23 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Charles County, MD, Fairfax County, VA, Prince William County, VA
The radar
The Sterling radar (KLWX), 39 km from the middle of the area, began a volume at 20:53 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, 8.9 hours before the alert went out and 34 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
- 666 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 559 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Sep 12, 3:31 PM EDT, 1 hour 21 minutes earlier.
Area forecast discussion, Sep 12, 3:31 PM EDT, 1 hour 21 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Sep 12, 10:25 AM EDT, 6 hours 27 minutes before
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 1025 AM EDT Mon Sep 12 2022 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ052>057-131000- 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- 1025 AM EDT Mon Sep 12 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 Flood Watch is in effect for portions of the Baltimore and Washington Metropolitan Areas from 5 PM to midnight. An isolated instance of flooding is possible elsewhere. In addition, an isolated thunderstorm may produce damaging wind gusts or a brief tornado. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening. MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- WVZ050>053-055-131000- 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- 1025 AM EDT Mon Sep 12 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 Flood Watch is in effect for portions of northern and northwest Virginia, eastern West Virginia, and north central Maryland this afternoon and evening. An isolated instance of flooding is possible elsewhere. In addition, an isolated thunderstorm may produce damaging wind gusts or a brief tornado, mainly east of Interstate 81. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening. MDZ001-501-502-VAZ503-504-WVZ501>506-131000- Garrett-Extreme Western Allegany-Central and Eastern Allegany- Western Highland-Eastern Highland-Western Grant-Eastern Grant- Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- 1025 AM EDT Mon Sep 12 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 An isolated instance of flooding is possible through this afternoon. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Sep 12, 3:18 PM EDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
318 PM EDT MON SEP 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0225 PM TSTM WND DMG 2 SE ALANTHUS 38.52N 77.90W
09/12/2022 CULPEPER VA EMERGENCY MNGR
NUMEROUS TREES DOWN NEAR THE INTERSECTION OF FARLEY
ROAD AND ALANTHUS ROAD.
&&
EVENT NUMBER LWX2204964
ADMLocal storm report, Sep 12, 4:28 PM EDT, 24 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 9:04 PM EDT | Coastal Flood Advisory | LWX | Arlington, King George, City of Alexandria, City of Falls Church | 14 hr |
| Sep 12, 2:52 AM EDT | Flood Watch | LWX | Arlington, Clarke, Fairfax, Frederick, Loudoun, Page and 6 more | 17 hr |
| Sep 12, 5:15 AM EDT | Dense Fog Advisory | LWX | Albemarle, Amherst, Augusta, Clarke, Culpeper, Fauquier and 17 more | 4 hr |
| Sep 12, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier | 37 min |
| Sep 12, 2:11 PM EDT | Areal Flood Warning | LWX | Clarke, Frederick, Warren, City of Winchester | 103 min |
| Sep 12, 2:37 PM EDT | Tornado Warning | LWX | Culpeper, Fauquier | 23 min |
| Sep 12, 4:01 PM EDT | Special Marine Warning | LWX | 89 min | |
| Sep 12, 4:28 PM EDT | Severe Thunderstorm Warning | LWX | Prince William, Stafford | 47 min |
| Sep 12, 5:20 PM EDT | Special Marine Warning | LWX | 55 min | |
| Sep 12, 5:33 PM EDT | Special Marine Warning | LWX | 87 min | |
| Sep 12, 5:38 PM EDT | Special Marine Warning | LWX | 78 min | |
| Sep 12, 5:41 PM EDT | Areal Flood Warning | LWX | Arlington, Fairfax, Prince William, City of Alexandria, City of Fairfax, City of Falls Church and 2 more | 3 hr |
| Sep 12, 5:53 PM EDT | Special Marine Warning | LWX | 61 min | |
| Sep 12, 6:59 PM EDT | Special Marine Warning | LWX | 46 min | |
| Sep 12, 7:15 PM EDT | Special Marine Warning | LWX | 60 min | |
| Sep 12, 4:10 PM EDT | Areal Flood Warning | LWX | Baltimore | 6 hr |
| Sep 12, 5:28 PM EDT | Areal Flood Warning | LWX | Baltimore, Carroll | 5 hr |
| Sep 12, 6:18 PM EDT | Flash Flood Warning | LWX | Baltimore | 3 hr |
| Sep 12, 6:28 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 32 min |
Nearby
Tornado Warnings in Virginia, 2022Tornado Warnings in Maryland, 2022Every tornado warning in 2022Tornadoes 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.