Alert archive / Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

May 5, 2018Bland County, Virginia

NWS Blacksburg, VA issued this special weather statement at May 5, 2018, 3:13 PM EDT for Bland County, Virginia. It was in force for 32 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
May 5, 2018, 3:13 PM EDT (19:13 UTC)
Expired
May 5, 2018, 3:45 PM EDT
In force
32 min
Issued by
NWS Blacksburg, VA

County Bland County, VA

The radar

The Roanoke radar (KFCX), 101 km from the middle of the area, began a volume at 19:16 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, 7.2 hours before the alert went out and 165 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 2018-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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 2018-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.19395878Sfc1 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
28 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 May 5, 1:54 PM EDT, 1 hour 19 minutes earlier.

Area forecast discussion, May 5, 1:54 PM EDT, 1 hour 19 minutes before
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Hazardous weather outlook, May 5, 4:37 AM EDT, 10 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
437 AM EDT Sat May 5 2018

VAZ007-009>011-018>020-WVZ042>044-507-508-060845-
Tazewell-Smyth-Bland-Giles-Craig-Alleghany VA-Bath-Mercer-Summers-
Monroe-Eastern Greenbrier-Western Greenbrier-
437 AM EDT Sat May 5 2018

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

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms are expected Saturday afternoon
into the evening. Locally heavy downpours are possible with these
showers and thunderstorms, which may cause localized minor flooding.
There is a marginal risk of excessive rainfall for today.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ012>017-022>024-032>035-043>047-058-059-060845-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Wythe-Pulaski-Montgomery-Grayson-Carroll-Floyd-Roanoke-
Botetourt-Rockbridge-Patrick-Franklin-Bedford-Amherst-Henry-
Pittsylvania-Campbell-Appomattox-Buckingham-Halifax-Charlotte-
437 AM EDT Sat May 5 2018

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

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, May 5, 2:37 PM EDT, 36 minutes before
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Special weather statement, May 5, 2:39 PM EDT, 34 minutes before
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Special weather statement, May 5, 3:06 PM EDT, 7 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
306 PM EDT SAT MAY 5 2018

WVZ042-051930-
Mercer-
306 PM EDT SAT MAY 5 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MERCER COUNTY...

Until 330 PM EDT

At 306 PM EDT, a strong thunderstorm was located over Pinnacle Rock
State Park, moving northeast at 20 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Princeton...
Bramwell...
Kegley...
Montcalm...
and Pinnacle Rock State Park.

This includes The following Location Mercer County Airport.

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 3727 8127 3731 8133 3744 8119 3739 8105
TIME...MOT...LOC 1906Z 224DEG 19KT 3730 8126

DS
Special weather statement, May 5, 3:13 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
313 PM EDT SAT MAY 5 2018

VAZ007-WVZ042-051945-
Tazewell-Mercer-
313 PM EDT SAT MAY 5 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN TAZEWELL AND
SOUTHWESTERN MERCER COUNTIES...

Until 345 PM EDT

At 313 PM EDT, a strong thunderstorm was located over Tiptop, moving
northeast at 20 mph.

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

Locations impacted include...
Bluefield...
Pocahontas...
Bramwell...
Coaldale...
and Pinnacle Rock State Park.

LAT...LON 3732 8138 3732 8137 3733 8137 3735 8135
      3727 8120 3718 8139 3722 8143
TIME...MOT...LOC 1913Z 218DEG 17KT 3721 8139

DS

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 2:37 PM EDTSpecial Weather StatementRNKGiles23 min
May 5, 2:39 PM EDTSpecial Weather StatementRNKTazewell36 min
May 5, 4:16 PM EDTSpecial Weather StatementRNKBuchanan29 min
May 5, 4:41 PM EDTSpecial Weather StatementRNKMontgomery34 min
May 5, 6:21 PM EDTSpecial Weather StatementRNKTazewell24 min
May 5, 6:45 PM EDTSpecial Weather StatementRNKTazewell30 min
May 5, 7:15 PM EDTSpecial Weather StatementRNKBland, Wythe30 min
May 5, 7:50 PM EDTSpecial Weather StatementRNKBland, Giles25 min
May 5, 3:06 PM EDTSpecial Weather StatementRNKMercer24 min
May 5, 3:33 PM EDTSpecial Weather StatementRNKMercer27 min
May 5, 3:45 PM EDTSpecial Weather StatementRNKMercer30 min
May 5, 4:00 PM EDTAreal Flood AdvisoryRNKMercer6 hr
May 5, 4:04 PM EDTSpecial Weather StatementRNKMercer26 min
May 5, 4:32 PM EDTSpecial Weather StatementRNKMercer, Summers28 min
May 5, 4:45 PM EDTSpecial Weather StatementRNKGreenbrier30 min
May 5, 4:58 PM EDTAreal Flood AdvisoryRNKMercer, Summers8 hr
May 5, 5:01 PM EDTSpecial Weather StatementRNKSummers29 min
May 5, 5:03 PM EDTSpecial Weather StatementRNKSummers27 min
May 5, 5:05 PM EDTSpecial Weather StatementRNKSummers25 min
May 5, 5:28 PM EDTSevere Thunderstorm WarningRNKGreenbrier, Summers47 min
May 5, 5:34 PM EDTSpecial Weather StatementRNKMonroe26 min
May 5, 5:57 PM EDTSpecial Weather StatementRNKGreenbrier33 min
May 5, 6:04 PM EDTSpecial Weather StatementRNKMonroe26 min
May 5, 6:25 PM EDTSpecial Weather StatementRNKGreenbrier35 min
May 5, 7:17 PM EDTSpecial Weather StatementRNKMercer, Summers28 min
May 5, 7:23 PM EDTSpecial Weather StatementRNKSummers37 min
May 5, 7:43 PM EDTSevere Thunderstorm WarningRNKMonroe, Summers47 min

Nearby

Special Weather Statements in Virginia, 2018Every 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.