Alert archive / Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

August 7, 2018Charlotte County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 7, 2018, 7:11 PM EDT for Charlotte County, Virginia. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 7, 2018, 7:11 PM EDT (23:11 UTC)
Expired: Aug 7, 2018, 8:00 PM EDT
In force: 49 min
Issued by: NWS Blacksburg, VA

County Charlotte County, VA

The radar

The Norfolk radar (KAKQ), 143 km from the middle of the area, began a volume at 23:13 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

Roanoke, VA (KRNK), launched 12:00Z, 11.2 hours before the alert went out and 81 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: 562 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -69 m²/s²
0-3 km storm-relative helicity: -32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this special weather statement went out at Aug 7, 7:06 PM EDT, 5 minutes earlier.

Area forecast discussion, Aug 7, 7:06 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>

Hazardous weather outlook, Aug 7, 4:10 AM EDT, 15 hours 1 minute before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
410 AM EDT Tue Aug 7 2018

VAZ007-010>014-016>020-022>024-032>035-043>047-058-059-WVZ042>044-
507-508-080900-
Tazewell-Bland-Giles-Wythe-Pulaski-Montgomery-Carroll-Floyd-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Patrick-Franklin-
Bedford-Amherst-Henry-Pittsylvania-Campbell-Appomattox-Buckingham-
Halifax-Charlotte-Mercer-Summers-Monroe-Eastern Greenbrier-
Western Greenbrier-
410 AM EDT Tue Aug 7 2018

This Hazardous Weather Outlook is for central Virginia, south
central Virginia, southwest Virginia, west central Virginia and
southeast West Virginia.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Some storms Wednesday afternoon and evening may produce locally
damaging wind, especially north of Route 460.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ009-015-080900-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Smyth-Grayson-
410 AM EDT Tue Aug 7 2018

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina and southwest Virginia.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 7, 5:32 PM EDT, 1 hour 39 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
532 PM EDT TUE AUG 7 2018

VAZ047-072230-
Buckingham-
532 PM EDT TUE AUG 7 2018

...A STRONG THUNDERSTORM WILL AFFECT
NORTH CENTRAL BUCKINGHAM COUNTY...

Until 630 PM EDT.

At 532 PM EDT, a strong thunderstorm was located near Schuyler,
moving east at 5 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Centenary.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3760 7843 3772 7865 3776 7861 3775 7858
      3776 7855 3776 7850 3780 7849 3779 7848
      3776 7847 3773 7840 3773 7836 3772 7836
TIME...MOT...LOC 2132Z 290DEG 6KT 3783 7864

Loconto

Local storm report, Aug 7, 5:33 PM EDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
533 PM EDT TUE AUG 7 2018

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

0505 PM     TSTM WND DMG     2 E EAST BEND           36.21N 80.47W
08/07/2018                   YADKIN             NC   911 CALL CENTER

            SEVERAL TREES BLOWN DOWN NEAR THE INTERSECTION OF ROUTE
            67 AND BUTNER MILL ROAD

&&

PW

Special weather statement, Aug 7, 5:57 PM EDT, 1 hour 14 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
557 PM EDT TUE AUG 7 2018

NCZ005-006-VAZ033-043-044-058-072300-
Rockingham-Caswell-Henry-Franklin-Halifax-Pittsylvania-
557 PM EDT TUE AUG 7 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT
NORTHERN ROCKINGHAM...NORTHWESTERN CASWELL...PITTSYLVANIA...WEST
CENTRAL HALIFAX...HENRY AND SOUTHEASTERN FRANKLIN COUNTIES...THE CITY
OF DANVILLE AND THE CITY OF MARTINSVILLE...

Until 700 PM EDT.

At 557 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Penhook to Leatherwood to Spencer.
Movement was east at 20 mph.

Winds in excess of 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Danville...
Eden...
Reidsville...
Martinsville...
and Wentworth.

This includes The following Locations The Martinsville Speedway,
Martinsville Airport, and Danville Airport.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

LAT...LON 3653 8003 3654 8003 3654 8005 3660 8005
      3676 7985 3702 7962 3688 7907 3655 7922
      3633 7960
TIME...MOT...LOC 2157Z 292DEG 18KT 3695 7964 3673 7977 3660 8000

Loconto

Special weather statement, Aug 7, 6:44 PM EDT, 27 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
644 PM EDT TUE AUG 7 2018

VAZ044-045-058-072345-
Halifax-Campbell-Pittsylvania-
644 PM EDT TUE AUG 7 2018

...A STRONG THUNDERSTORM WILL AFFECT
SOUTH CENTRAL CAMPBELL...NORTHEASTERN PITTSYLVANIA AND NORTHWESTERN
HALIFAX COUNTIES...

Until 745 PM EDT.

At 644 PM EDT, a strong thunderstorm was located over Mt Airy. the
storm is nearly stationary.

Wind gusts up to 50 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Mt Airy...
Cody...
Leda...
Straightstone...
and Chalk Level.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

LAT...LON 3690 7928 3703 7929 3710 7899 3686 7899
TIME...MOT...LOC 2244Z 264DEG 4KT 3695 7919

Loconto

Special weather statement, Aug 7, 6:59 PM EDT, 12 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, Aug 7, 7:11 PM EDT, 0 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 Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 7, 12:10 PM EDT	Special Weather Statement	RNK	Pulaski	35 min
Aug 7, 12:59 PM EDT	Special Weather Statement	RNK	Bath	46 min
Aug 7, 1:35 PM EDT	Special Weather Statement	RNK	Bland, Tazewell	55 min
Aug 7, 3:15 PM EDT	Special Weather Statement	RNK	Pulaski	45 min
Aug 7, 3:25 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	50 min
Aug 7, 3:30 PM EDT	Special Weather Statement	RNK	Montgomery	45 min
Aug 7, 3:56 PM EDT	Special Weather Statement	RNK	Floyd, Montgomery, City of Radford	49 min
Aug 7, 4:12 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Montgomery, Roanoke, City of Roanoke, City of Salem	63 min
Aug 7, 4:29 PM EDT	Special Weather Statement	RNK	City of Lynchburg	46 min
Aug 7, 4:47 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, City of Lynchburg	72 min
Aug 7, 4:56 PM EDT	Special Weather Statement	RNK	Henry, Patrick	49 min
Aug 7, 5:05 PM EDT	Special Weather Statement	RNK	Franklin, Pittsylvania, City of Martinsville	40 min
Aug 7, 5:25 PM EDT	Special Weather Statement	RNK	Campbell	50 min
Aug 7, 5:32 PM EDT	Special Weather Statement	RNK	Buckingham	58 min
Aug 7, 5:57 PM EDT	Special Weather Statement	RNK	Henry, Pittsylvania, City of Danville, City of Martinsville	63 min
Aug 7, 6:18 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	57 min
Aug 7, 6:44 PM EDT	Special Weather Statement	RNK	Campbell	61 min
Aug 7, 6:51 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Charlotte, Halifax, Pittsylvania	34 min
Aug 7, 3:03 PM EDT	Special Weather Statement	RNK	Stokes	42 min
Aug 7, 3:48 PM EDT	Special Weather Statement	RNK	Stokes	57 min
Aug 7, 4:49 PM EDT	Special Weather Statement	RNK	Yadkin	56 min
Aug 7, 4:52 PM EDT	Severe Thunderstorm Warning	RNK	Yadkin	53 min
Aug 7, 6:59 PM EDT	Special Weather Statement	RNK	Alleghany	46 min
Aug 7, 7:54 PM EDT	Special Weather Statement	RNK	Surry	51 min

Nearby

Special Weather Statements in Virginia, 2018 Every special weather statement in 2018

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.