Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Blacksburg, VA

August 2, 2020Surry County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 2, 2020, 3:33 PM EDT for Surry County, North Carolina. It was in force for 27 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 2, 2020, 3:33 PM EDT (19:33 UTC)
Expired
Aug 2, 2020, 4:00 PM EDT
In force
27 min
Issued by
NWS Blacksburg, VA

County Surry County, NC

The radar

The Roanoke radar (KFCX), 96 km from the middle of the area, began a volume at 19:35 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 87 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, Greensboro/Hi Pt, NC at 12:00Z on 2020-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 564 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, Greensboro/Hi Pt, NC at 12:00Z on 2020-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
564 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
987 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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 Aug 2, 3:17 PM EDT, 16 minutes earlier.

Area forecast discussion, Aug 2, 3:17 PM EDT, 16 minutes before
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Hazardous weather outlook, Aug 2, 5:48 AM EDT, 9 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
548 AM EDT Sun Aug 2 2020

NCZ004-VAZ007-009>014-018>020-022>024-033>035-046-047-WVZ042>044-507-
508-031200-
Stokes-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Franklin-Bedford-
Amherst-Appomattox-Buckingham-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
548 AM EDT Sun Aug 2 2020

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

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats with any thunderstorms today and tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Scattered to numerous showers and a few thunderstorms are expected
Monday through Wednesday, with isolated to scattered thunderstorms
possible Thursday through Saturday. An isolated strong to severe
thunderstorm will be possible each day, mainly during the afternoon
and evening. In addition, a period of heavy rainfall will be possible
Monday and Tuesday as the remnants of Tropical Storm Isaias move
northward through eastern Virginia.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation is possible this afternoon and evening for
isolated severe thunderstorms and isolated flash flooding. The public
and CoCoRahs observers are encouraged to send their rainfall reports
to the National Weather Service during the next few days.

NCZ001>003-018-019-VAZ015>017-032-031200-
Ashe-Alleghany NC-Surry-Watauga-Wilkes-Grayson-Carroll-Floyd-Patrick-
548 AM EDT Sun Aug 2 2020

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

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

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats with any thunderstorms today and tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Scattered to numerous showers and a few thunderstorms are expected
Monday through Wednesday, with isolated to scattered thunderstorms
possible Thursday through Saturday. An isolated strong to severe
thunderstorm will be possible each day, mainly during the afternoon
and evening. In addition, heavy rainfall is expected Monday and
Tuesday as the remnants of Tropical Storm Isaias move northward
through eastern Virginia.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible this afternoon and evening for
isolated severe thunderstorms and isolated flash flooding. Spotter
activation is more likely Monday and Tuesday due to the increased
flash flooding potential. The public and CoCoRahs observers are
encouraged to send their rainfall reports to the National Weather
Service during the next few days.

NCZ020-031200-
Yadkin-
548 AM EDT Sun Aug 2 2020

This Hazardous Weather Outlook is for northwest North Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats with any thunderstorms today and tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Scattered to numerous showers and a few thunderstorms are expected
Monday through Wednesday, with isolated to scattered thunderstorms
possible Thursday through Saturday. An isolated strong to severe
thunderstorm will be possible each day, mainly during the afternoon
and evening. In addition, a period of heavy rainfall will be possible
Monday and Tuesday as the remnants of Tropical Storm Isaias move
northward through eastern Virginia.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible this afternoon and evening for
isolated severe thunderstorms and isolated flash flooding. Spotter
activation is more likely Monday and Tuesday due to the increased
flash flooding potential. The public and CoCoRahs observers are
encouraged to send their rainfall reports to the National Weather
Service during the next few days.

NCZ005-006-VAZ043>045-058-059-031200-
Rockingham-Caswell-Henry-Pittsylvania-Campbell-Halifax-Charlotte-
548 AM EDT Sun Aug 2 2020

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY
EVENING...

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

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats with any thunderstorms today and tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Scattered to numerous showers and a few thunderstorms are expected
Monday through Wednesday, with isolated to scattered thunderstorms
possible Thursday through Saturday. An isolated strong to severe
thunderstorm will be possible each day, mainly during the afternoon
and evening. In addition, heavy rainfall is expected Monday and
Tuesday as the remnants of Tropical Storm Isaias move northward
through eastern Virginia.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible this afternoon and evening for
isolated severe thunderstorms and isolated flash flooding. Spotter
activation is more likely Monday and Tuesday due to the increased
flash flooding potential. The public and CoCoRahs observers are
encouraged to send their rainfall reports to the National Weather
Service during the next few days.

RAB

In the hours before

Special weather statement, Aug 2, 1:40 PM EDT, 1 hour 53 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
140 PM EDT Sun Aug 2 2020

VAZ034-035-045-021815-
Amherst-Campbell-Bedford-
140 PM EDT Sun Aug 2 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT
NORTH CENTRAL CAMPBELL...SOUTHEASTERN AMHERST...AND EAST CENTRAL
BEDFORD COUNTIES AND THE CITY OF LYNCHBURG...

At 140 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Boonsboro to near Goode. Movement
was northeast at 40 mph.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

Locations impacted include...
Lynchburg...
Amherst...
Forest...
Clifford...
Madison Heights...
Boonsboro...
and Falconerville.

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.

LAT...LON 3747 7897 3744 7901 3743 7902 3739 7900
      3726 7941 3751 7927 3770 7899 3768 7898
      3768 7897 3767 7897 3765 7896
TIME...MOT...LOC 1740Z 230DEG 33KT 3749 7924 3732 7934

DS
Special weather statement, Aug 2, 2:08 PM EDT, 1 hour 25 minutes before
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Special weather statement, Aug 2, 2:10 PM EDT, 1 hour 23 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
210 PM EDT Sun Aug 2 2020

VAZ032-033-043-021845-
Henry-Franklin-Patrick-
210 PM EDT Sun Aug 2 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN
HENRY...NORTHEASTERN PATRICK AND SOUTHERN FRANKLIN COUNTIES...

At 209 PM EDT, a strong thunderstorm was located near Endicott, or 8
miles southwest of Ferrum, moving northeast at 30 mph.

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

Locations impacted include...
Rocky Mount...
Sydnorsville...
Ferrum...
Endicott...
Fairy Stone State Park...
Oak Level...
and Sontag.

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

LAT...LON 3686 8028 3687 8024 3690 8020 3693 8019
      3695 8016 3695 8015 3696 8014 3712 7988
      3689 7969 3672 8018
TIME...MOT...LOC 1809Z 236DEG 27KT 3684 8013

BMG
Special weather statement, Aug 2, 2:38 PM EDT, 55 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
238 PM EDT Sun Aug 2 2020

VAZ047-021900-
Buckingham-
238 PM EDT Sun Aug 2 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BUCKINGHAM
COUNTY...

At 238 PM EDT, a strong thunderstorm was located near Centenary, or 9
miles north of Buckingham, moving northeast at 35 mph.

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

Locations impacted include...
New Canton...
and 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.

LAT...LON 3759 7862 3770 7869 3768 7866 3768 7865
      3769 7864 3770 7865 3771 7865 3775 7862
      3776 7855 3776 7851 3777 7850 3779 7850
      3780 7849 3776 7847 3775 7844 3773 7836
      3769 7825
TIME...MOT...LOC 1838Z 239DEG 31KT 3768 7859

BMG
Special weather statement, Aug 2, 2:53 PM EDT, 40 minutes before
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Special weather statement, Aug 2, 3:33 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:02 PM EDTSpecial Weather StatementRNKCharlotte28 min
Aug 1, 8:05 PM EDTSpecial Weather StatementRNKRockbridge, City of Lexington25 min
Aug 1, 8:11 PM EDTSevere Thunderstorm WarningRNKCharlotte, Halifax35 min
Aug 2, 4:55 AM EDTFlash Flood WatchRNKAmherst, Appomattox, Bedford, Bland, Botetourt, Buckingham and 28 more50 hr
Aug 2, 1:40 PM EDTSpecial Weather StatementRNKCity of Lynchburg35 min
Aug 2, 2:08 PM EDTSpecial Weather StatementRNKAppomattox37 min
Aug 2, 2:10 PM EDTSpecial Weather StatementRNKFranklin35 min
Aug 2, 2:25 PM EDTSevere Thunderstorm WarningRNKFranklin35 min
Aug 2, 2:38 PM EDTSpecial Weather StatementRNKBuckingham22 min
Aug 2, 2:42 PM EDTSevere Thunderstorm WarningRNKBuckingham22 min
Aug 2, 4:19 PM EDTSpecial Weather StatementRNKPatrick26 min
Aug 2, 4:48 PM EDTSpecial Weather StatementRNKCity of Martinsville27 min
Aug 2, 5:24 PM EDTSpecial Weather StatementRNKCampbell36 min
Aug 2, 6:24 PM EDTSpecial Weather StatementRNKCharlotte51 min
Aug 2, 6:59 PM EDTAreal Flood AdvisoryRNKMontgomery, Pulaski63 min
Aug 2, 7:24 PM EDTSpecial Weather StatementRNKCharlotte36 min
Aug 2, 2:53 PM EDTSpecial Weather StatementRNKWilkes37 min
Aug 2, 4:04 PM EDTSpecial Weather StatementRNKSurry26 min
Aug 2, 5:21 PM EDTSpecial Weather StatementRNKAshe, Watauga39 min
Aug 1, 8:20 PM EDTSpecial Weather StatementRNKGreenbrier25 min
Aug 1, 8:42 PM EDTSpecial Weather StatementRNKGreenbrier48 min

Nearby

Special Weather Statements in North Carolina, 2020Every special weather statement in 2020

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.