Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 165, NWS Blacksburg, VA

August 8, 2018Amherst County, Appomattox County, Buckingham County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 8, 2018, 7:22 PM EDT for Amherst County, Appomattox County, Buckingham County, Virginia. It was in force for 53 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: Aug 8, 2018, 7:22 PM EDT (23:22 UTC)
Expired: Aug 8, 2018, 8:15 PM EDT
In force: 53 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Amherst County, VA, Appomattox County, VA, Buckingham County, VA

The radar

The Roanoke radar (KFCX), 139 km from the middle of the area, began a volume at 23:23 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, 11.4 hours before the alert went out and 69 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: 49 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 51 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 Aug 8, 6:58 PM EDT, 24 minutes earlier.

Area forecast discussion, Aug 8, 6:58 PM EDT, 24 minutes before

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Hazardous weather outlook, Aug 8, 3:21 PM EDT, 4 hours 1 minute before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
321 PM EDT Wed Aug 8 2018

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-091930-
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-
321 PM EDT Wed Aug 8 2018

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...This afternoon and tonight.

Scattered strong to severe thunderstorms containing primarily
damaging winds and heavy rain will be possible through 10 PM this
evening.

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

A renewed potential for heavy rainfall and possible localized
flooding exists for Sunday and Monday.

Otherwise, the probability for widespready hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Aug 8, 5:40 PM EDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
540 PM EDT WED AUG 8 2018

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

0151 PM     TSTM WND DMG     5 E CHRISTIANSBURG      37.14N 80.31W
08/08/2018                   MONTGOMERY         VA   911 CALL CENTER

            ONE TREE BLOWN DOWN THAT TOOK DOWN A POWER LINE NEAR THE
            INTERSECTION OF GEORGES RUN ROAD AND MOUNT PLEASANT ROAD

&&

PW

Special weather statement, Aug 8, 6:14 PM EDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
614 PM EDT WED AUG 8 2018

NCZ004-005-082300-
Stokes-Rockingham-
614 PM EDT WED AUG 8 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT
SOUTHEASTERN STOKES AND ROCKINGHAM COUNTIES...

Until 700 PM EDT.

At 614 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Wentworth to 7 miles southeast of Pine
Hall. Movement was east at 20 mph.

Winds of 30 mph to 40 mph are possible with these storms.

Locations impacted include...
Reidsville...
Wentworth...
Mayodan...
Madison...
and Walnut Cove.

LAT...LON 3626 8022 3649 7990 3638 7953 3624 7953
TIME...MOT...LOC 2214Z 291DEG 18KT 3642 7978 3622 8001

16

Local storm report, Aug 8, 6:15 PM EDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
615 PM EDT WED AUG 8 2018

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

0521 PM     TSTM WND DMG     3 SW BOONVILLE          36.21N 80.75W
08/08/2018                   YADKIN             NC   PUBLIC

            ONE TREE BLOWN DOWN NEAR THE INTERSECTION OF MOXLEY ROAD
            AND NORTH OAK RIDGE CHURCH ROAD

&&

PW

Special weather statement, Aug 8, 6:16 PM EDT, 1 hour 6 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
616 PM EDT WED AUG 8 2018

NCZ006-082315-
Caswell-
616 PM EDT WED AUG 8 2018

...A STRONG THUNDERSTORM WILL AFFECT
SOUTHERN CASWELL COUNTY...

Until 715 PM EDT.

At 616 PM EDT, a strong thunderstorm was located near Jericho, moving
east at 20 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Prospect Hill...
Jericho...
Camp Springs...
Topnot...
and Hightowers.

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 3625 7941 3629 7950 3640 7944 3635 7915
      3624 7916
TIME...MOT...LOC 2216Z 291DEG 17KT 3632 7941

16

Special weather statement, Aug 8, 6:49 PM EDT, 33 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
649 PM EDT WED AUG 8 2018

VAZ035-046-047-082345-
Buckingham-Amherst-Appomattox-
649 PM EDT WED AUG 8 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN
APPOMATTOX...EAST CENTRAL AMHERST...AND BUCKINGHAM COUNTIES...

Until 745 PM EDT.

At 648 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Schuyler to near Amherst. Movement
was east at 20 mph.

Winds in excess of 40 mph are possible with these storms.

Locations impacted include...
Buckingham...
Amherst...
Dillwyn...
Bent Creek...
and Clifford.

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.

LAT...LON 3762 7826 3733 7849 3736 7858 3740 7859
      3733 7861 3740 7883 3762 7912 3768 7897
      3755 7890 3754 7883 3763 7882 3764 7872
      3770 7869 3768 7864 3771 7865 3775 7862
      3776 7851 3780 7849 3775 7844 3769 7824
TIME...MOT...LOC 2248Z 278DEG 19KT 3780 7862 3762 7906

RAB

Local storm report, Aug 8, 6:56 PM EDT, 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 10:52 PM EDT	Special Weather Statement	RNK	Tazewell	53 min
Aug 8, 12:57 PM EDT	Special Weather Statement	RNK	Tazewell	63 min
Aug 8, 1:19 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	56 min
Aug 8, 1:35 PM EDT	Special Weather Statement	RNK	Montgomery	40 min
Aug 8, 1:41 PM EDT	Special Weather Statement	RNK	Bedford, Campbell	49 min
Aug 8, 1:53 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Carroll, Grayson, Pulaski, Smyth, Tazewell and 1 more	67 min
Aug 8, 1:55 PM EDT	Special Weather Statement	RNK	Giles	65 min
Aug 8, 2:11 PM EDT	Special Weather Statement	RNK	Henry	64 min
Aug 8, 2:14 PM EDT	Special Weather Statement	RNK	Grayson	46 min
Aug 8, 2:19 PM EDT	Special Weather Statement	RNK	Franklin	56 min
Aug 8, 2:31 PM EDT	Special Weather Statement	RNK	Appomattox, City of Lynchburg	59 min
Aug 8, 2:43 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Henry, Pittsylvania, City of Danville	62 min
Aug 8, 2:54 PM EDT	Special Weather Statement	RNK	Montgomery, Pulaski, Roanoke, City of Radford	66 min
Aug 8, 3:05 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Montgomery, Pulaski	40 min
Aug 8, 3:10 PM EDT	Special Weather Statement	RNK	Grayson	65 min
Aug 8, 3:16 PM EDT	Special Weather Statement	RNK	Franklin, Pittsylvania	59 min
Aug 8, 3:39 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Franklin	51 min
Aug 8, 3:40 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania, City of Danville	49 min
Aug 8, 4:04 PM EDT	Special Weather Statement	RNK	Henry, Patrick, City of Martinsville	56 min
Aug 8, 4:09 PM EDT	Special Weather Statement	RNK	Campbell	66 min
Aug 8, 4:35 PM EDT	Special Weather Statement	RNK	Pittsylvania	55 min
Aug 8, 4:40 PM EDT	Special Weather Statement	RNK	Charlotte	50 min
Aug 8, 5:03 PM EDT	Special Weather Statement	RNK	Campbell	27 min
Aug 8, 5:28 PM EDT	Special Weather Statement	RNK	Charlotte	32 min
Aug 8, 6:49 PM EDT	Special Weather Statement	RNK	Buckingham	56 min
Aug 7, 8:04 PM EDT	Special Weather Statement	RNK	Watauga	41 min
Aug 7, 8:11 PM EDT	Special Weather Statement	RNK	Yadkin	49 min
Aug 7, 8:33 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Yadkin	57 min
Aug 7, 8:45 PM EDT	Special Weather Statement	RNK	Stokes	45 min
Aug 7, 9:01 PM EDT	Special Weather Statement	RNK	Stokes	44 min
Aug 7, 9:34 PM EDT	Areal Flood Advisory	RNK	Rockingham	38 min
Aug 7, 9:50 PM EDT	Special Weather Statement	RNK	Rockingham	25 min
Aug 7, 10:09 PM EDT	Flash Flood Warning	RNK	Rockingham	3 hr
Aug 8, 12:38 PM EDT	Special Weather Statement	RNK	Stokes	52 min
Aug 8, 1:33 PM EDT	Special Weather Statement	RNK	Stokes, Surry	57 min
Aug 8, 2:06 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry	43 min
Aug 8, 2:17 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	58 min
Aug 8, 3:12 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	63 min
Aug 8, 3:45 PM EDT	Special Weather Statement	RNK	Wilkes	60 min
Aug 8, 4:20 PM EDT	Special Weather Statement	RNK	Surry, Wilkes	40 min
Aug 8, 4:58 PM EDT	Special Weather Statement	RNK	Stokes, Surry, Wilkes, Yadkin	47 min
Aug 8, 5:19 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry, Yadkin	56 min
Aug 8, 5:33 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham, Stokes	42 min
Aug 8, 5:52 PM EDT	Flash Flood Warning	RNK	Stokes, Surry	113 min
Aug 8, 6:14 PM EDT	Special Weather Statement	RNK	Rockingham	46 min
Aug 8, 6:16 PM EDT	Special Weather Statement	RNK	Caswell	59 min
Aug 8, 1:11 PM EDT	Special Weather Statement	RNK	Mercer	49 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2018 Every severe thunderstorm warning 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.