Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 162, NWS Blacksburg, VA

July 31, 2019Bath County, Rockbridge County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 31, 2019, 2:41 PM EDT for Bath County, Rockbridge County, Virginia. It was in force for 22 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 31, 2019, 2:41 PM EDT (18:41 UTC)
Expired
Jul 31, 2019, 3:03 PM EDT
In force
22 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bath County, VA, Rockbridge County, VA

The radar

The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 18:41 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, 6.7 hours before the alert went out and 82 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2019-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2019-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
7 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
1412 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 9:45 AM EDT, 4 hours 56 minutes earlier.

Area forecast discussion, Jul 31, 9:45 AM EDT, 4 hours 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, Jul 31, 4:37 AM EDT, 10 hours 4 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
437 AM EDT Wed Jul 31 2019

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-010845-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
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-
437 AM EDT Wed Jul 31 2019

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

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Some localized flooding is possible Thursday into Sunday as a
frontal system stalls near the area resulting in several rounds of
showers and thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 31, 1:57 PM EDT, 44 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, Jul 31, 2:17 PM EDT, 24 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
217 PM EDT Wed Jul 31 2019

NCZ001-018-311845-
Ashe-Watauga-
217 PM EDT Wed Jul 31 2019

...A STRONG THUNDERSTORM WILL AFFECT ASHE AND WATAUGA COUNTIES...

Until 245 PM EDT.

At 217 PM EDT, a strong thunderstorm was located over Todd. the storm
is nearly stationary.

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

Locations impacted include...
Jefferson...
West Jefferson...
Todd...
Glendale Springs...
and Trout.

LAT...LON 3639 8165 3647 8140 3628 8138 3629 8141
      3628 8141 3627 8143 3626 8143 3626 8146
      3624 8148 3626 8165
TIME...MOT...LOC 1817Z 267DEG 2KT 3633 8158

VFJ
Special weather statement, Jul 31, 2:25 PM EDT, 16 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
225 PM EDT Wed Jul 31 2019

VAZ011-013-014-311915-
Giles-Pulaski-Montgomery-
225 PM EDT Wed Jul 31 2019

...A STRONG THUNDERSTORM WILL AFFECT GILES, PULASKI AND MONTGOMERY
COUNTIES...

Until 315 PM EDT.

At 224 PM EDT, a strong thunderstorm was located over Bane, moving
east at 10 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
Radford...
Pearisburg...
Dublin...
Pembroke...
and Mountain Lake.

LAT...LON 3725 8089 3740 8053 3713 8048 3708 8055
      3709 8088 3713 8088 3715 8086 3717 8088
      3718 8086 3719 8087 3719 8089
TIME...MOT...LOC 1824Z 262DEG 7KT 3725 8074

VFJ
Local storm report, Jul 31, 2:31 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
231 PM EDT WED JUL 31 2019

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

0230 PM     HAIL             BALDWIN                 36.35N 81.53W
07/31/2019  E0.70 INCH       ASHE               NC   TRAINED SPOTTER

            DIME SIZE HAIL ALMOST COVERING THE GROUND,
            ALONG WITH 2 INCHES OF RAIN IN 30 MINUTES.

&&
Local storm report, Jul 31, 2:36 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
236 PM EDT WED JUL 31 2019

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

0236 PM     HAIL             BALDWIN                 36.35N 81.53W
07/31/2019  E1.75 INCH       ASHE               NC   PUBLIC

            GOLF BALL SIZE HAIL NOW FALLING IN BALDWIN.

&&
Special weather statement, Jul 31, 2:36 PM EDT, 5 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
236 PM EDT Wed Jul 31 2019

VAZ018-WVZ044-311915-
Craig-Monroe-
236 PM EDT Wed Jul 31 2019

...A STRONG THUNDERSTORM WILL AFFECT CRAIG AND MONROE COUNTIES...

Until 315 PM EDT.

At 236 PM EDT, a strong thunderstorm was located over Maggie, moving
east at 10 mph.

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

Locations impacted include...
Paint Bank...
Sinking Creek...
Abbott...
Craig Springs...
and Huffman.

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 3762 8025 3740 8013 3736 8032 3737 8033
      3736 8034 3734 8042 3749 8046
TIME...MOT...LOC 1836Z 262DEG 7KT 3742 8038

VFJ

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 31, 12:33 PM EDTSpecial Weather StatementRNKGrayson57 min
Jul 31, 1:25 PM EDTSevere Thunderstorm WarningRNKGrayson, Smyth25 min
Jul 31, 1:57 PM EDTSpecial Weather StatementRNKBath63 min
Jul 31, 2:25 PM EDTSpecial Weather StatementRNKGiles, City of Radford50 min
Jul 31, 2:36 PM EDTSpecial Weather StatementRNKCraig39 min
Jul 31, 2:49 PM EDTSpecial Weather StatementRNKGrayson41 min
Jul 31, 3:00 PM EDTSevere Thunderstorm WarningRNKGiles, Pulaski45 min
Jul 31, 3:16 PM EDTSevere Thunderstorm WarningRNKGrayson59 min
Jul 31, 3:34 PM EDTSevere Thunderstorm WarningRNKRockbridge26 min
Jul 31, 3:38 PM EDTSevere Thunderstorm WarningRNKAlleghany, Bath, Botetourt, Rockbridge, City of Lexington67 min
Jul 31, 4:05 PM EDTSpecial Weather StatementRNKFloyd25 min
Jul 31, 4:21 PM EDTSevere Thunderstorm WarningRNKBedford, Botetourt, Rockbridge39 min
Jul 31, 4:48 PM EDTSpecial Weather StatementRNKFloyd57 min
Jul 31, 4:52 PM EDTSevere Thunderstorm WarningRNKAmherst, Bedford, Botetourt, Rockbridge, City of Buena Vista53 min
Jul 31, 4:58 PM EDTSpecial Weather StatementRNKFloyd47 min
Jul 31, 5:01 PM EDTSevere Thunderstorm WarningRNKBedford, Botetourt, Roanoke59 min
Jul 31, 5:05 PM EDTSpecial Weather StatementRNKAlleghany25 min
Jul 31, 5:17 PM EDTSpecial Weather StatementRNKSmyth, Tazewell58 min
Jul 31, 5:39 PM EDTSpecial Weather StatementRNKAlleghany, City of Covington66 min
Jul 31, 5:46 PM EDTSpecial Weather StatementRNKPulaski, City of Radford44 min
Jul 31, 5:50 PM EDTSpecial Weather StatementRNKCity of Martinsville25 min
Jul 31, 5:57 PM EDTSpecial Weather StatementRNKAmherst33 min
Jul 31, 6:02 PM EDTSevere Thunderstorm WarningRNKAlleghany, Botetourt33 min
Jul 31, 6:07 PM EDTSpecial Weather StatementRNKBuckingham53 min
Jul 31, 6:25 PM EDTSpecial Weather StatementRNKPittsylvania35 min
Jul 31, 6:30 PM EDTSevere Thunderstorm WarningRNKHalifax, Pittsylvania60 min
Jul 31, 7:33 PM EDTFlash Flood WarningRNKHalifax, Pittsylvania4 hr
Jul 31, 7:42 PM EDTSpecial Weather StatementRNKHalifax33 min
Jul 31, 1:50 PM EDTAreal Flood AdvisoryRNKWatauga26 min
Jul 31, 2:17 PM EDTSpecial Weather StatementRNKAshe28 min
Jul 31, 2:20 PM EDTSevere Thunderstorm WarningRNKAshe, Watauga, Wilkes55 min
Jul 31, 3:24 PM EDTSpecial Weather StatementRNKYadkin36 min
Jul 31, 3:50 PM EDTSpecial Weather StatementRNKCaswell25 min
Jul 31, 3:56 PM EDTSevere Thunderstorm WarningRNKSurry, Wilkes49 min
Jul 31, 6:19 PM EDTSpecial Weather StatementRNKCaswell26 min
Jul 31, 6:56 PM EDTSpecial Weather StatementRNKCaswell34 min
Jul 31, 4:16 PM EDTSpecial Weather StatementRNKMonroe, Summers59 min
Jul 31, 6:33 PM EDTSevere Thunderstorm WarningRNKMercer24 min

Nearby

Severe Thunderstorm Warnings in Virginia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.