Alert archive / Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 142, NWS Baltimore/Washington

May 26, 2011Highland County, Virginia; Pendleton County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at May 26, 2011, 10:17 PM EDT for Highland County, Virginia; Pendleton County, West Virginia. It was in force for 43 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: May 26, 2011, 10:17 PM EDT (02:17 UTC)
Expired: May 26, 2011, 11:00 PM EDT
In force: 43 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

Counties Highland County, VA, Pendleton County, WV

The radar

The Sterling radar (KLWX), 178 km from the middle of the area, began a volume at 02:18 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.

Issued	Product	Office	Lasted
May 26, 1:42 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 2.3 hours before the alert went out and 147 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 278 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1807 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.8

Open this sounding in Storm Lab

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 May 26, 9:21 PM EDT, 56 minutes earlier.

Area forecast discussion, May 26, 9:21 PM EDT, 56 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, May 26, 8:46 PM EDT, 1 hour 31 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

Local storm report, May 26, 9:55 PM EDT, 22 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>

Special weather statement, May 26, 10:02 PM EDT, 15 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>

Special weather statement, May 26, 10:07 PM EDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1007 PM EDT THU MAY 26 2011

VAZ503-504-WVZ505-506-270230-
EASTERN HIGHLAND VA-EASTERN PENDLETON WV-WESTERN HIGHLAND VA-
WESTERN PENDLETON WV-
1007 PM EDT THU MAY 26 2011

...STRONG THUNDERSTORM TO AFFECT EASTERN HIGHLAND...EASTERN
PENDLETON...WESTERN HIGHLAND AND WESTERN PENDLETON COUNTIES...

AT 1007 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6
MILES WEST OF HIGHTOWN...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE NEW HAMPDEN...BLUE GRASS...CHERRY GROVE
AND CIRCLEVILLE.

PENNY-SIZE TO NICKEL-SIZE HAIL CAN BE EXPECTED WITH THIS STORM.

&&

LAT...LON 3840 7972 3844 7969 3850 7970 3852 7967
      3856 7968 3860 7964 3867 7963 3868 7961
      3875 7954 3883 7950 3868 7928 3834 7971
      3836 7974
TIME...MOT...LOC 0207Z 221DEG 33KT 3846 7971

BJL

Local storm report, May 26, 10:08 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1008 PM EDT THU MAY 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0420 PM     HAIL             SHORT GAP               39.54N  78.81W
05/26/2011  E1.00 INCH       MINERAL            WV   PUBLIC

            QUARTER SIZE HAIL

&&

EVENT NUMBER LWX1100758

KLW

Local storm report, May 26, 10:12 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1012 PM EDT THU MAY 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0427 PM     HAIL             1 WSW PINTO             39.57N  78.85W
05/26/2011  E1.00 INCH       ALLEGANY           MD   PUBLIC

            QUARTER SIZE HAIL WHITENED THE GROUND NEAR INTERSECTION
            OF RT 956 AND US 220.

&&

EVENT NUMBER LWX1100759

KLW

Local storm report, May 26, 10:13 PM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1013 PM EDT THU MAY 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     HAIL             FRANKLIN                38.64N  79.33W
05/26/2011  M0.88 INCH       PENDLETON          WV   911 CALL CENTER

            NICKEL SIZE HAIL IN FRANKLIN... WEST VIRGINIA

&&

EVENT NUMBER LWX1100760

KLW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 10:02 PM EDT	Special Weather Statement	LWX	Rockingham	28 min
May 26, 10:32 PM EDT	Special Weather Statement	LWX	Shenandoah	28 min
May 26, 10:53 PM EDT	Severe Thunderstorm Warning	LWX	Augusta, Highland, Rockingham	52 min
May 26, 11:07 PM EDT	Tornado Warning	LWX	Rockingham	38 min
May 26, 11:18 PM EDT	Severe Thunderstorm Warning	LWX	Augusta, Highland, Rockingham, City of Harrisonburg, City of Staunton	42 min
May 26, 11:23 PM EDT	Flash Flood Warning	LWX	Augusta, Highland, Rockingham	3 hr
May 26, 11:52 PM EDT	Severe Thunderstorm Warning	LWX	Augusta, Page, Rockingham, Shenandoah	53 min
May 27, 12:28 AM EDT	Severe Thunderstorm Warning	LWX	Frederick, Shenandoah, Warren	47 min
May 27, 1:00 AM EDT	Severe Thunderstorm Warning	LWX	Clarke, Frederick, Loudoun, City of Winchester	45 min
May 27, 4:38 AM EDT	Flash Flood Watch	LWX	Highland	19 hr
May 27, 4:04 PM EDT	Special Weather Statement	LWX	Nelson	41 min
May 27, 4:08 PM EDT	Special Weather Statement	LWX	Nelson, City of Waynesboro	52 min
May 27, 5:07 PM EDT	Special Weather Statement	LWX	Albemarle, Greene, City of Charlottesville, City of Waynesboro	23 min
May 27, 5:38 PM EDT	Special Weather Statement	LWX	Culpeper, Madison, Orange	37 min
May 27, 5:57 PM EDT	Flash Flood Warning	LWX	Rockingham, Shenandoah	2 hr
May 27, 6:13 PM EDT	Special Weather Statement	LWX	Spotsylvania	32 min
May 27, 6:16 PM EDT	Special Weather Statement	LWX	Culpeper, Fauquier, Prince William, Rappahannock	44 min
May 27, 6:34 PM EDT	Severe Thunderstorm Warning	LWX	Culpeper, Fauquier, Prince William, Rappahannock	41 min
May 27, 6:37 PM EDT	Special Weather Statement	LWX	Stafford, City of Fredericksburg	38 min
May 27, 6:38 PM EDT	Special Marine Warning	LWX		2 hr
May 27, 6:40 PM EDT	Severe Thunderstorm Warning	LWX	Culpeper, Fauquier, King George, Prince William, Spotsylvania, Stafford and 1 more	35 min
May 27, 6:45 PM EDT	Tornado Warning	LWX	Fairfax, Prince William, Spotsylvania, Stafford, City of Fredericksburg	30 min
May 27, 6:52 PM EDT	Special Weather Statement	LWX	Prince William, City of Manassas	23 min
May 27, 6:58 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Prince William, Stafford	32 min
May 27, 7:06 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Fauquier, Loudoun, Prince William, City of Fairfax, City of Manassas and 1 more	39 min
May 27, 7:21 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, Fairfax, Loudoun, Prince William, City of Alexandria, City of Fairfax and 3 more	39 min
May 27, 7:29 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Loudoun	46 min
May 26, 11:47 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	58 min
May 27, 3:06 PM EDT	Special Weather Statement	LWX	Allegany	24 min
May 27, 3:13 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	38 min
May 27, 4:40 PM EDT	Special Weather Statement	LWX	Allegany	50 min
May 27, 4:53 PM EDT	Special Weather Statement	LWX	Allegany	37 min
May 27, 4:57 PM EDT	Flash Flood Warning	LWX	Allegany	6 hr
May 27, 5:04 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	15 min
May 27, 5:13 PM EDT	Special Weather Statement	LWX	Allegany	47 min
May 27, 5:29 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	31 min
May 27, 5:33 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	27 min
May 27, 5:38 PM EDT	Flash Flood Warning	LWX	Allegany	3 hr
May 27, 6:00 PM EDT	Special Weather Statement	LWX	Allegany	15 min
May 27, 7:55 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Frederick, Howard, Montgomery and 1 more	50 min
May 27, 7:59 PM EDT	Special Weather Statement	LWX	Frederick, Washington	46 min
May 26, 10:07 PM EDT	Special Weather Statement	LWX	Pendleton	23 min
May 26, 10:42 PM EDT	Special Weather Statement	LWX	Pendleton	48 min
May 26, 11:11 PM EDT	Special Weather Statement	LWX	Morgan	34 min
May 26, 11:15 PM EDT	Special Weather Statement	LWX	Hardy	30 min
May 26, 11:32 PM EDT	Tornado Warning	LWX	Grant, Hardy	28 min
May 27, 2:46 PM EDT	Special Weather Statement	LWX	Mineral	29 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2011 Severe Thunderstorm Warnings in West Virginia, 2011 Every severe thunderstorm warning in 2011

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.