Alert archive / Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

August 3, 2018Halifax County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 3, 2018, 1:53 AM EDT for Halifax County, Virginia. It was in force for 67 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 3, 2018, 1:53 AM EDT (05:53 UTC)
Expired: Aug 3, 2018, 3:00 AM EDT
In force: 67 min
Issued by: NWS Blacksburg, VA

County Halifax County, VA

The radar

The Raleigh/Durham radar (KRAX), 114 km from the middle of the area, began a volume at 05:52 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 00:00Z, 5.9 hours before the alert went out and 88 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: 426 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 6.1

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, 10:29 PM EDT, 3 hours 24 minutes earlier.

Area forecast discussion, Aug 2, 10:29 PM EDT, 3 hours 24 minutes before

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Hazardous weather outlook, Aug 2, 2:59 PM EDT, 10 hours 54 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Blacksburg VA
259 PM EDT Thu Aug 2 2018

NCZ001>004-018>020-VAZ007-009>020-032-WVZ042>044-507-508-031900-
Ashe-Alleghany NC-Surry-Stokes-Watauga-Wilkes-Yadkin-Tazewell-Smyth-
Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-Carroll-Floyd-Craig-
Alleghany VA-Bath-Patrick-Mercer-Summers-Monroe-Eastern Greenbrier-
Western Greenbrier-
259 PM EDT Thu Aug 2 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH FRIDAY EVENING...

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

.DAY ONE...This afternoon and tonight.

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

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ005-006-VAZ022>024-033>035-043>047-058-059-031900-
Rockingham-Caswell-Roanoke-Botetourt-Rockbridge-Franklin-Bedford-
Amherst-Henry-Pittsylvania-Campbell-Appomattox-Buckingham-Halifax-
Charlotte-
259 PM EDT Thu Aug 2 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH FRIDAY EVENING...

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

.DAY ONE...This afternoon and tonight.

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

   Flash Flood Watch.

In addition, strong to isolated severe thunderstorms containing
damaging winds will be possible into this evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Aug 2, 8:53 PM EDT, 5 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
853 PM EDT THU AUG 2 2018

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

0752 PM     FLASH FLOOD      5 N EVINGTON            37.30N 79.28W
08/02/2018                   CAMPBELL           VA   BROADCAST MEDIA

            SIGNIFICANT FLOODING ACROSS ALUM SPRINGS ROAD.

&&

LOCONTO

Local storm report, Aug 2, 10:36 PM EDT, 3 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1036 PM EDT THU AUG 2 2018

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

1000 PM     FLASH FLOOD      2 WSW LYNCHBURG CITY    37.40N 79.18W
08/02/2018                   CITY OF LYNCHBURG  VA   COUNTY OFFICIAL

            COLLEGE LAKE HAS FILLED BEYOND ITS CAPACITY AND IS
            FLOWING OVER LAKESIDE DRIVE 12 TO 18 INCHES DEEP INTO
            BLACKWATER CREEK.

&&

16

Local storm report, Aug 2, 11:29 PM EDT, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BLACKSBURG VA
1129 PM EDT THU AUG 2 2018

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

0435 PM     HAIL             5 W MADISON             36.38N 80.07W
08/02/2018  M0.50 INCH       STOKES             NC   EMERGENCY MNGR

0450 PM     TSTM WND DMG     MARTINSVILLE CITY       36.68N 79.87W
08/02/2018                   CITY OF MARTINSVIL VA   911 CALL CENTER

            AT LEAST 20 TREES WERE BLOWN DOWN BY THUNDERSTORM WINDS
            AT SEVERAL LOCATIONS ACROSS HENRY COUNTY AND THE CITY OF
            MARTINSVILLE.

0501 PM     HEAVY RAIN       ROANOKE                 37.28N 79.96W
08/02/2018  U0.00 INCH       CITY OF ROANOKE    VA   911 CALL CENTER

            CITY OF ROANOKE REPORTS MINOR FLOODING OF SEVERAL LOW
            WATER CROSSINGS.

0523 PM     FLASH FLOOD      1 W MARTINSVILLE CITY   36.68N 79.88W
08/02/2018                   CITY OF MARTINSVIL VA   BROADCAST MEDIA

            WDBJ VIEWER REPORTED BRIDGE STREET AND MEMORIAL BOULEVARD
            WERE FLOODED.

0530 PM     HEAVY RAIN       2 S FOREST              37.34N 79.28W
08/02/2018  E0.00 INCH       BEDFORD            VA   PUBLIC

            MINOR STREET FLOODING ON WATERLICK ROAD NEAR INTERSECTION
            WITH THOMAS JEFFERSON ROAD.

0633 PM     FLASH FLOOD      2 WSW LYNCHBURG CITY    37.40N 79.18W
08/02/2018                   CITY OF LYNCHBURG  VA   BROADCAST MEDIA

            LAKESIDE DRIVE NEAR COLLEGE LAKE HAS HIGH WATER COVERING
            THE ROAD. PHOTOS SHARED TO NWS BLACKSBURG TWITTER
            ACCOUNT.

0645 PM     FLASH FLOOD      3 E FOREST              37.37N 79.23W
08/02/2018                   CITY OF LYNCHBURG  VA   PUBLIC

            GRAVES MILL ROAD NEAR INTERSECTION WITH OLD GRAVES MILL
            ROAD IN LYNCHBURG IS FLOODED. WATER REPORTED TO BE UP TO
            CAR WHEELBASES.

0705 PM     FLASH FLOOD      6 NNE EVINGTON          37.31N 79.25W
08/02/2018                   CAMPBELL           VA   TRAINED SPOTTER

            SPOTTER REPORTED THE 500 BLOCK OF SUNBURST ROAD IS
            IMPASSIBLE WITH AN ESTIMATED FOOT OF WATER COVERING THE
            ROAD.

0710 PM     HEAVY RAIN       5 NNW ELKIN             36.33N 80.87W
08/02/2018  E0.00 INCH       SURRY              NC   TRAINED SPOTTER

            PONDING AND MINOR STREET FLOODING ON ROUTE 21 NEAR OLD
            HIGHWAY 21 NEAR ELKIN.

0710 PM     TSTM WND DMG     5 NNW ELKIN             36.33N 80.87W
08/02/2018                   SURRY              NC   TRAINED SPOTTER

            TREE DOWN ON US ROUTE 21 NEAR OLD HIGHWAY 21 NEAR ELKIN.
            TIME ESTIMATED FROM RADAR.

0710 PM     FLASH FLOOD      5 N EVINGTON            37.31N 79.29W
08/02/2018                   CAMPBELL           VA   PUBLIC

            BUFFALO CREEK IS WELL OUT OF ITS BANKS AND FLOODING ROUTE
            460. ROUTE 460 IS CLOSED AND REQUIRED ONE SWIFT WATER
            RESCUE.

0740 PM     FLOOD            6 N EVINGTON            37.31N 79.27W
08/02/2018                   CAMPBELL           VA   911 CALL CENTER

            WATER THIRTEEN INCHES DEEP WAS OBSERVED FLOWING OVER THE
            SPILLWAY OF TIMBERLAKE DAM.

0752 PM     FLASH FLOOD      5 N EVINGTON            37.30N 79.28W
08/02/2018                   CAMPBELL           VA   BROADCAST MEDIA

            SIGNIFICANT FLOODING ACROSS ALUM SPRINGS ROAD.

0842 PM     FLOOD            3 ESE FOREST            37.35N 79.23W
08/02/2018                   CITY OF LYNCHBURG  VA   PUBLIC

            BASEMENT FLOODING AT A RESIDENCE ON SEVEN OAKS DRIVE.

0842 PM     FLOOD            3 ESE FOREST            37.35N 79.23W
08/02/2018                   CITY OF LYNCHBURG  VA   PUBLIC

            BASEMENT FLOODING AT A RESIDENCE ON SEVEN OAKS DRIVE.

0849 PM     FLOOD            3 ESE FOREST            37.35N 79.23W
08/02/2018                   CITY OF LYNCHBURG  VA   PUBLIC

            BASEMENT FLOODING AT A RESIDENCE ON SEVEN OAKS DRIVE.

1000 PM     FLASH FLOOD      2 WSW LYNCHBURG CITY    37.40N 79.18W
08/02/2018                   CITY OF LYNCHBURG  VA   COUNTY OFFICIAL

            COLLEGE LAKE HAS FILLED BEYOND ITS CAPACITY AND IS
            FLOWING OVER LAKESIDE DRIVE 12 TO 18 INCHES DEEP INTO
            BLACKWATER CREEK.

&&

LOCONTO

Local storm report, Aug 2, 11:50 PM EDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1150 PM EDT THU AUG 2 2018

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

0430 PM     TSTM WND DMG     PINE HALL               36.32N 80.07W
08/02/2018                   STOKES             NC   TRAINED SPOTTER

            A LARGE TREE AND MULTIPLE LARGE LIMBS WERE BLOWN DOWN
            NEAR THE COMMUNITY OF PINE HALL BY THUNDERSTORM WINDS.

&&

16

Local storm report, Aug 3, 12:22 AM EDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1222 AM EDT FRI AUG 3 2018

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

0710 PM     NON-TSTM WND DMG 3 ENE MAYFIELD          36.53N 79.52W
08/02/2018                   ROCKINGHAM         NC   911 CALL CENTER

            A TREE WAS DOWNED DUE TO THE COMBINATION OF GUSTY WINDS
            AND WET SOIL CONDITIONS.

&&

16

Special weather statement, Aug 3, 1:53 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
153 AM EDT FRI AUG 3 2018

VAZ058-059-030700-
Halifax-Charlotte-
153 AM EDT FRI AUG 3 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL CHARLOTTE AND
SOUTHEASTERN HALIFAX COUNTIES...

Until 300 AM EDT.

At 153 AM EDT, a strong thunderstorm was located over Alton, moving
northeast at 20 mph.

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

Locations impacted include...
South Boston...
Halifax...
Redoak...
Clover...
and Turbeville.

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

LAT...LON 3669 7866 3668 7870 3658 7872 3654 7876
      3654 7912 3656 7916 3698 7883 3677 7858
      3670 7865 3663 7855
TIME...MOT...LOC 0553Z 227DEG 18KT 3660 7898

KK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 8:09 PM EDT	Special Weather Statement	RNK	Giles	66 min
Aug 2, 8:24 PM EDT	Tornado Warning	RNK	Giles	36 min
Aug 2, 8:38 PM EDT	Severe Thunderstorm Warning	RNK	Giles	37 min
Aug 2, 8:43 PM EDT	Tornado Warning	RNK	Giles	32 min
Aug 2, 8:51 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Craig	26 min
Aug 2, 9:13 PM EDT	Severe Thunderstorm Warning	RNK	Giles	47 min
Aug 2, 9:20 PM EDT	Flash Flood Warning	RNK	City of Lynchburg	6 hr
Aug 2, 10:01 PM EDT	Areal Flood Warning	RNK	Bland, Giles, Pulaski, Wythe	3 hr
Aug 3, 3:09 AM EDT	Flash Flood Warning	RNK	City of Lynchburg	23 hr
Aug 3, 5:38 AM EDT	Areal Flood Warning	RNK	Amherst, Bedford, Campbell, City of Lynchburg	9 hr
Aug 3, 8:47 AM EDT	Areal Flood Warning	RNK	Grayson, Smyth, Wythe	9 hr
Aug 3, 2:42 PM EDT	Areal Flood Warning	RNK	Bland, Giles, Montgomery, Pulaski, Wythe	3 hr
Aug 3, 2:54 PM EDT	Special Weather Statement	RNK	Franklin, Henry, City of Martinsville	66 min
Aug 3, 4:02 PM EDT	Special Weather Statement	RNK	Amherst, Bedford, Pittsylvania, City of Danville, City of Lynchburg, City of Martinsville	58 min
Aug 3, 4:27 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Campbell, Franklin, Halifax, Henry and 3 more	63 min
Aug 3, 5:30 PM EDT	Special Weather Statement	RNK	Halifax, Pittsylvania, City of Danville	60 min
Aug 3, 5:36 PM EDT	Special Weather Statement	RNK	Franklin	54 min
Aug 2, 10:29 PM EDT	Areal Flood Warning	RNK	Rockingham	6 hr
Aug 3, 12:41 AM EDT	Areal Flood Advisory	RNK	Surry, Wilkes	3 hr
Aug 3, 5:14 PM EDT	Areal Flood Advisory	RNK	Caswell	4 hr

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.