Alert archive / Virginia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 361, NWS Baltimore/Washington

October 18, 20125 counties in Virginia; Berkeley County, Jefferson County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Oct 18, 2012, 9:21 PM EDT for 5 counties in Virginia; Berkeley County, Jefferson County, West Virginia. 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
Oct 18, 2012, 9:21 PM EDT (01:21 UTC)
Expired
Oct 18, 2012, 10:00 PM EDT
In force
39 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon

Counties City of Winchester, VA, Clarke County, VA, Frederick County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Jefferson County, WV

The radar

The Sterling radar (KLWX), 61 km from the middle of the area, began a volume at 01:21 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 Oct 18, 9:16 PM EDT, 5 minutes earlier.

Area forecast discussion, Oct 18, 9:16 PM EDT, 5 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>

In the hours before

Special weather statement, Oct 18, 8:45 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
845 PM EDT THU OCT 18 2012

VAZ026-027-029-190115-
SHENANDOAH VA-PAGE VA-ROCKINGHAM VA-
845 PM EDT THU OCT 18 2012

...STRONG THUNDERSTORM TO AFFECT SHENANDOAH...PAGE AND ROCKINGHAM
COUNTIES...

AT 846 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 2 MILES EAST OF
LINVILLE...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE MOUNT JACKSON AND LURAY.

WIND GUSTS IN EXCESS OF 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH
THIS STORM. WINDS THIS STRONG CAN BRING DOWN LARGE TREE BRANCHES.
TAKE SHELTER UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3883 7863 3867 7844 3841 7876 3854 7893
TIME...MOT...LOC 0046Z 222DEG 43KT 3855 7876
Special weather statement, Oct 18, 9:17 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
917 PM EDT THU OCT 18 2012

VAZ027-028-030-031-WVZ051>053-190145-
SHENANDOAH VA-WARREN VA-CLARKE VA-MORGAN WV-JEFFERSON WV-BERKELEY WV-
FREDERICK VA-
917 PM EDT THU OCT 18 2012

...STRONG THUNDERSTORM TO AFFECT SHENANDOAH...WARREN...CLARKE...
MORGAN...JEFFERSON...BERKELEY AND FREDERICK COUNTIES...

AT 918 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTH OF
STRASBURG...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE STEPHENS CITY...WINCHESTER...MILLWOOD
PIKE...GREENWOOD...INWOOD AND VALLEY HIGH.

STORM INTENSITY IS INCREASING...AND SEVERE WEATHER MAY DEVELOP
RAPIDLY. REMAIN ALERT...AND BE PREPARED TO TAKE ACTION IF WARNINGS
ARE ISSUED.

THIS STORM IS PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING. MOVE
INDOORS IMMEDIATELY FOR YOUR SAFETY. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

HEAVY RAIN WITH THIS STORM WILL REDUCE VISIBILITIES TO BELOW ONE MILE
AND MAY CAUSE PONDING OF WATER ON ROADWAYS.

PENNY-SIZE TO NICKEL-SIZE HAIL AND WIND GUSTS IN EXCESS OF 50 MPH CAN
BE EXPECTED WITH THIS STORM. WINDS THIS STRONG CAN BRING DOWN LARGE
TREE BRANCHES. TAKE SHELTER UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3948 7827 3928 7786 3890 7833 3896 7848
TIME...MOT...LOC 0118Z 208DEG 38KT 3904 7835

KONARIK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 8:45 PM EDTSpecial Weather StatementLWXRockingham30 min
Oct 18, 8:53 PM EDTSevere Thunderstorm WarningLWXPage, Rockingham, Shenandoah, Warren52 min
Oct 18, 9:17 PM EDTSpecial Weather StatementLWXFrederick, City of Winchester28 min
Oct 18, 9:26 PM EDTSpecial Weather StatementLWXMadison, Rappahannock34 min
Oct 18, 9:40 PM EDTSpecial Weather StatementLWXRockingham, Shenandoah35 min
Oct 18, 9:41 PM EDTSevere Thunderstorm WarningLWXClarke, Fauquier, Loudoun, Page, Rappahannock, Shenandoah and 1 more26 min
Oct 18, 10:08 PM EDTSpecial Weather StatementLWXFauquier, Loudoun37 min
Oct 18, 10:09 PM EDTSpecial Weather StatementLWXAlbemarle, City of Charlottesville36 min
Oct 18, 10:25 PM EDTSpecial Weather StatementLWXOrange35 min
Oct 18, 10:27 PM EDTSevere Thunderstorm WarningLWXLoudoun37 min
Oct 18, 10:43 PM EDTSpecial Weather StatementLWXLoudoun32 min
Oct 18, 10:49 PM EDTSpecial Weather StatementLWXOrange26 min
Oct 18, 11:10 PM EDTSpecial Weather StatementLWXOrange35 min
Oct 18, 11:16 PM EDTSevere Thunderstorm WarningLWXCulpeper, Madison, Orange29 min
Oct 18, 11:19 PM EDTSpecial Weather StatementLWXFauquier26 min
Oct 18, 11:38 PM EDTSpecial Weather StatementLWXAlbemarle, City of Charlottesville37 min
Oct 18, 11:44 PM EDTSpecial Weather StatementLWXCulpeper31 min
Oct 19, 12:04 AM EDTSmall Craft AdvisoryLWX3 hr
Oct 19, 12:12 AM EDTSpecial Weather StatementLWXPrince William, City of Manassas33 min
Oct 19, 12:49 AM EDTSpecial Weather StatementLWXArlington, Fairfax, City of Fairfax, City of Falls Church, City of Manassas Park41 min
Oct 19, 12:56 AM EDTSpecial Marine WarningLWX47 min
Oct 19, 3:12 AM EDTSpecial Weather StatementLWXSpotsylvania33 min
Oct 19, 8:14 AM EDTSpecial Marine WarningLWX26 min
Oct 19, 2:06 PM EDTSmall Craft AdvisoryLWX11 hr
Oct 19, 3:29 PM EDTCoastal Flood AdvisoryLWXArlington, City of Alexandria, City of Falls Church11 hr
Oct 19, 5:13 PM EDTSpecial Weather StatementLWXArlington, Fairfax, City of Alexandria, City of Falls Church32 min
Oct 19, 5:14 PM EDTSpecial Marine WarningLWX91 min
Oct 19, 5:48 PM EDTSpecial Weather StatementLWXArlington, Fairfax, City of Alexandria, City of Falls Church57 min
Oct 19, 5:53 PM EDTSpecial Marine WarningLWX97 min
Oct 19, 6:31 PM EDTSpecial Marine WarningLWX89 min
Oct 19, 6:50 PM EDTSpecial Weather StatementLWXArlington, City of Alexandria55 min
Oct 19, 7:59 PM EDTSpecial Marine WarningLWX91 min
Oct 18, 9:23 PM EDTSpecial Weather StatementLWXFrederick37 min
Oct 18, 9:51 PM EDTSpecial Weather StatementLWXFrederick24 min
Oct 18, 9:52 PM EDTSpecial Weather StatementLWXWashington38 min
Oct 18, 9:55 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Washington30 min
Oct 18, 10:30 PM EDTSpecial Weather StatementLWXCarroll30 min
Oct 18, 10:53 PM EDTSpecial Weather StatementLWXCarroll37 min
Oct 18, 11:20 PM EDTSpecial Weather StatementLWXHoward, Montgomery25 min
Oct 19, 1:29 AM EDTSpecial Weather StatementLWXBaltimore, Howard, City of Baltimore46 min
Oct 19, 2:11 AM EDTSpecial Weather StatementLWXHarford34 min
Oct 19, 6:27 PM EDTTornado WarningLWXBaltimore33 min
Oct 19, 6:52 PM EDTTornado WarningLWXBaltimore, Harford38 min
Oct 18, 9:31 PM EDTSpecial Weather StatementLWXMorgan29 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2012Severe Thunderstorm Warnings in West Virginia, 2012Every severe thunderstorm warning in 2012

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.