Alert archive / Virginia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 166, NWS Baltimore/Washington

July 4, 2007Loudoun County, Virginia; Montgomery County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Jul 4, 2007, 5:51 PM EDT for Loudoun County, Virginia; Montgomery County, Maryland. It was in force for 39 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
Jul 4, 2007, 5:51 PM EDT (21:51 UTC)
Expired
Jul 4, 2007, 6:30 PM EDT
In force
39 min
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

Counties Montgomery County, MD, Loudoun County, VA

The radar

The Sterling radar (KLWX), 16 km from the middle of the area, began a volume at 21:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 4, 2:06 PM EDTTornado WatchSPC8 hr

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 Jul 3, 5:58 PM EDT, 23 hours 53 minutes earlier.

Area forecast discussion, Jul 3, 5:58 PM EDT, 23 hours 53 minutes before
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Hazardous weather outlook, Jul 3, 5:58 PM EDT, 23 hours 53 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.
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    </section>
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The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 3:51 PM EDTSevere Thunderstorm WarningLWXFauquier39 min
Jul 4, 3:56 PM EDTSevere Thunderstorm WarningLWXClarke19 min
Jul 4, 4:22 PM EDTSevere Thunderstorm WarningLWXFauquier, Loudoun38 min
Jul 4, 4:41 PM EDTTornado WarningLWXFauquier, Loudoun, Prince William34 min
Jul 4, 4:43 PM EDTSpecial Marine WarningLWX2 hr
Jul 4, 4:54 PM EDTSpecial Marine WarningLWX2 hr
Jul 4, 5:15 PM EDTSevere Thunderstorm WarningLWXFairfax, Loudoun, Prince William, City of Fairfax, City of Manassas, City of Manassas Park45 min
Jul 4, 5:32 PM EDTSevere Thunderstorm WarningLWXCulpeper, Orange31 min
Jul 4, 5:32 PM EDTTornado WarningLWXFairfax, City of Fairfax, City of Falls Church43 min
Jul 4, 6:01 PM EDTSevere Thunderstorm WarningLWXArlington, City of Alexandria53 min
Jul 4, 6:52 PM EDTSpecial Marine WarningLWX113 min
Jul 4, 7:52 PM EDTSevere Thunderstorm WarningLWXLoudoun26 min
Jul 4, 3:34 PM EDTSevere Thunderstorm WarningLWXFrederick41 min
Jul 4, 3:55 PM EDTSevere Thunderstorm WarningLWXMontgomery50 min
Jul 4, 4:16 PM EDTTornado WarningLWXMontgomery29 min
Jul 4, 4:29 PM EDTSevere Thunderstorm WarningLWXHoward46 min
Jul 4, 4:41 PM EDTTornado WarningLWXMontgomery14 min
Jul 4, 5:11 PM EDTTornado WarningLWXHoward27 min
Jul 4, 5:26 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore22 min
Jul 4, 5:28 PM EDTSevere Thunderstorm WarningLWXAnne Arundel19 min
Jul 4, 6:27 PM EDTSevere Thunderstorm WarningLWXMontgomery63 min
Jul 4, 6:48 PM EDTSevere Thunderstorm WarningLWXPrince George's42 min
Jul 4, 7:27 PM EDTSevere Thunderstorm WarningLWXMontgomery31 min
Jul 4, 7:32 PM EDTSevere Thunderstorm WarningLWXHoward, Prince George's40 min
Jul 4, 7:47 PM EDTSevere Thunderstorm WarningLWXAnne Arundel51 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2007Severe Thunderstorm Warnings in Maryland, 2007Every severe thunderstorm warning in 2007

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.