Alert archive / Virginia / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 577, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Aug 19, 2019, 11:06 PM EDT for Arlington County, Fairfax County, City of Alexandria, Virginia; Montgomery County, Prince George's County, Maryland. It was in force for 15 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 19, 2019, 11:06 PM EDT (03:06 UTC)
- Expired
- Aug 19, 2019, 11:21 PM EDT
- In force
- 15 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Montgomery County, MD, Prince George's County, MD, Arlington County, VA, City of Alexandria, VA, Fairfax County, VA
The radar
The Sterling radar (KLWX), 35 km from the middle of the area, began a volume at 03:08 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.
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 19, 9:29 PM EDT, 1 hour 37 minutes earlier.
Area forecast discussion, Aug 19, 9:29 PM EDT, 1 hour 37 minutes before
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</html>Hazardous weather outlook, Aug 19, 5:26 PM EDT, 5 hours 40 minutes before
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</html>In the hours before
Local storm report, Aug 19, 7:54 PM EDT, 3 hours 12 minutes before
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</html>Local storm report, Aug 19, 8:59 PM EDT, 2 hours 7 minutes before
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</html>Local storm report, Aug 19, 9:02 PM EDT, 2 hours 4 minutes before
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</html>Local storm report, Aug 19, 9:37 PM EDT, 1 hour 29 minutes before
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<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Local storm report, Aug 19, 9:42 PM EDT, 1 hour 24 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Local storm report, Aug 19, 10:51 PM EDT, 15 minutes before
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<main class="wrap">
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<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.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:06 PM EDT | Special Marine Warning | LWX | 84 min | |
| Aug 19, 9:00 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun, Prince William | 30 min |
| Aug 19, 9:05 PM EDT | Special Marine Warning | LWX | 34 min | |
| Aug 19, 10:28 PM EDT | Severe Thunderstorm Warning | LWX | Prince William | 47 min |
| Aug 19, 10:34 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Loudoun, City of Fairfax | 41 min |
| Aug 19, 10:47 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Fairfax, City of Falls Church | 43 min |
| Aug 19, 11:04 PM EDT | Special Marine Warning | LWX | 27 min | |
| Aug 20, 1:20 PM EDT | Small Craft Advisory | LWX | 35 hr | |
| Aug 20, 1:47 PM EDT | Severe Thunderstorm Warning | LWX | Highland | 28 min |
| Aug 20, 2:29 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 46 min |
| Aug 20, 3:25 PM EDT | Special Marine Warning | LWX | 35 min | |
| Aug 20, 3:44 PM EDT | Severe Thunderstorm Warning | LWX | Shenandoah | 46 min |
| Aug 20, 3:54 PM EDT | Special Marine Warning | LWX | 66 min | |
| Aug 20, 4:16 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Shenandoah, Warren | 59 min |
| Aug 20, 4:27 PM EDT | Severe Thunderstorm Warning | LWX | Page, Rockingham, Shenandoah | 48 min |
| Aug 20, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax | 41 min |
| Aug 20, 4:36 PM EDT | Special Marine Warning | LWX | 54 min | |
| Aug 20, 4:44 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Loudoun, Prince William, City of Fairfax | 46 min |
| Aug 20, 4:47 PM EDT | Special Marine Warning | LWX | 88 min | |
| Aug 20, 4:58 PM EDT | Severe Thunderstorm Warning | LWX | Rockingham, City of Harrisonburg | 47 min |
| Aug 20, 5:10 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Loudoun | 20 min |
| Aug 20, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Augusta, Rockingham | 44 min |
| Aug 20, 5:21 PM EDT | Special Marine Warning | LWX | 84 min | |
| Aug 20, 5:21 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, Madison, Orange | 39 min |
| Aug 20, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Stafford | 37 min |
| Aug 20, 5:24 PM EDT | Special Marine Warning | LWX | 33 min | |
| Aug 20, 5:28 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Loudoun | 30 min |
| Aug 20, 5:32 PM EDT | Areal Flood Warning | LWX | Rockingham, City of Harrisonburg | 4 hr |
| Aug 20, 5:33 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Alexandria | 27 min |
| Aug 20, 5:38 PM EDT | Special Marine Warning | LWX | 97 min | |
| Aug 20, 5:43 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Prince William, City of Manassas, City of Manassas Park | 32 min |
| Aug 20, 5:51 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 39 min |
| Aug 20, 5:52 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 38 min |
| Aug 20, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Madison, Orange | 49 min |
| Aug 20, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Greene, Madison | 47 min |
| Aug 20, 6:05 PM EDT | Severe Thunderstorm Warning | LWX | King George | 22 min |
| Aug 20, 6:12 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Prince William | 48 min |
| Aug 20, 6:20 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Orange, Spotsylvania | 30 min |
| Aug 20, 6:21 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 39 min |
| Aug 20, 6:23 PM EDT | Special Marine Warning | LWX | 97 min | |
| Aug 20, 6:27 PM EDT | Flash Flood Warning | LWX | Rockingham, City of Harrisonburg | 114 min |
| Aug 20, 6:32 PM EDT | Special Marine Warning | LWX | 88 min | |
| Aug 20, 7:03 PM EDT | Special Marine Warning | LWX | 87 min | |
| Aug 20, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | King George, Spotsylvania, Stafford, City of Fredericksburg | 38 min |
| Aug 20, 7:11 PM EDT | Areal Flood Warning | LWX | Prince William | 3 hr |
| Aug 20, 7:29 PM EDT | Areal Flood Warning | LWX | King George, Stafford, City of Fredericksburg | 4 hr |
| Aug 20, 7:56 PM EDT | Special Marine Warning | LWX | 45 min | |
| Aug 20, 7:59 PM EDT | Special Marine Warning | LWX | 91 min | |
| Aug 20, 4:45 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 45 min |
| Aug 20, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 41 min |
| Aug 20, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 34 min |
| Aug 20, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Aug 20, 5:46 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 44 min |
| Aug 20, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard | 17 min |
| Aug 20, 1:13 PM EDT | Severe Thunderstorm Warning | LWX | Grant | 47 min |
| Aug 20, 1:59 PM EDT | Severe Thunderstorm Warning | LWX | Grant | 46 min |
| Aug 20, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | Hampshire | 37 min |
| Aug 20, 2:15 PM EDT | Severe Thunderstorm Warning | LWX | Pendleton | 45 min |
| Aug 20, 2:41 PM EDT | Severe Thunderstorm Warning | LWX | Hampshire, Hardy | 49 min |
| Aug 20, 3:04 PM EDT | Severe Thunderstorm Warning | LWX | Hardy | 41 min |
| Aug 20, 3:23 PM EDT | Areal Flood Warning | LWX | Grant, Hardy | 3 hr |
Nearby
Severe Thunderstorm Warnings in Virginia, 2019Severe Thunderstorm Warnings in Maryland, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.