Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

August 1, 2018Surry County, Yadkin County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 1, 2018, 4:15 PM EDT for Surry County, Yadkin County, North Carolina. It was in force for 45 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 1, 2018, 4:15 PM EDT (20:15 UTC)
Expired: Aug 1, 2018, 5:00 PM EDT
In force: 45 min
Issued by: NWS Blacksburg, VA

Counties Surry County, NC, Yadkin County, NC

The radar

The Roanoke radar (KFCX), 78 km from the middle of the area, began a volume at 20:15 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, 8.3 hours before the alert went out and 72 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: 83 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 1, 2:20 PM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Aug 1, 2:20 PM EDT, 1 hour 55 minutes before

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Hazardous weather outlook, Aug 1, 11:13 AM EDT, 5 hours 2 minutes before

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In the hours before

Special weather statement, Aug 1, 3:57 PM EDT, 18 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
357 PM EDT WED AUG 1 2018

VAZ018>020-WVZ044-507-012100-
Bath-Craig-Alleghany-Eastern Greenbrier-Monroe-
357 PM EDT WED AUG 1 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WESTERN ALLEGHANY
COUNTY IN WEST CENTRAL VIRGINIA...NORTHWESTERN CRAIG COUNTY IN
SOUTHWESTERN VIRGINIA...CENTRAL BATH COUNTY IN WEST CENTRAL
VIRGINIA...SOUTHEASTERN GREENBRIER AND NORTHEASTERN MONROE COUNTIES
IN SOUTHEASTERN WEST VIRGINIA...

Until 500 PM EDT.

At 356 PM EDT, strong thunderstorms extending from Natural Well to
Glace. Movement was northeast at 30 mph.

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

Locations impacted include...
Alleghany...
White Sulphur Springs...
Ronceverte...
Union...
and Paint Bank.

Locally heavy rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

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 3822 7971 3820 7956 3748 8036 3756 8065
      3804 8018 3804 8016 3806 8011 3806 7996
      3810 7993 3813 7995 3815 7992 3818 7992
      3825 7983 3827 7980
TIME...MOT...LOC 1956Z 221DEG 27KT 3792 7995 3769 8037

MBS

Special weather statement, Aug 1, 4:15 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
415 PM EDT WED AUG 1 2018

NCZ003-004-019-020-VAZ016-032-012100-
Stokes-Yadkin-Surry-Wilkes-Patrick-Carroll-
415 PM EDT WED AUG 1 2018

...STRONG THUNDERSTORMS WILL AFFECT SURRY...SOUTHEASTERN
WILKES...WESTERN STOKES...YADKIN...SOUTHEASTERN CARROLL AND
SOUTHWESTERN PATRICK COUNTIES...

Until 500 PM EDT.

At 414 PM EDT, strong thunderstorms extended from Burch to Troutman.
Movement was northeast at 35 mph.

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

Locations impacted include...
Mount Airy...
Elkin...
Fairview...
Flat Rock...
and Yadkinville.

Locally heavy rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

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 3606 8098 3655 8091 3656 8084 3657 8085
      3673 8048 3671 8046 3674 8046 3674 8042
      3626 8043 3626 8045 3617 8044 3614 8044
      3611 8051 3605 8050
TIME...MOT...LOC 2014Z 212DEG 31KT 3628 8080 3570 8092

MBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 9:08 PM EDT	Areal Flood Advisory	RNK	Appomattox, Buckingham	3 hr
Jul 31, 9:31 PM EDT	Areal Flood Advisory	RNK	Henry, Pittsylvania, City of Martinsville	3 hr
Jul 31, 9:40 PM EDT	Special Weather Statement	RNK	Amherst, City of Lynchburg	50 min
Jul 31, 10:03 PM EDT	Special Weather Statement	RNK	City of Martinsville	57 min
Jul 31, 11:20 PM EDT	Areal Flood Advisory	RNK	Amherst, Appomattox, Campbell, Halifax, Pittsylvania, City of Danville and 1 more	115 min
Jul 31, 11:29 PM EDT	Special Weather Statement	RNK	Charlotte, Halifax	61 min
Aug 1, 12:11 AM EDT	Special Weather Statement	RNK	Appomattox, Buckingham	64 min
Aug 1, 12:50 AM EDT	Special Weather Statement	RNK	Buckingham	55 min
Aug 1, 3:44 AM EDT	Flash Flood Watch	RNK	Alleghany, Amherst, Appomattox, Bath, Bedford, Bland and 31 more	64 hr
Aug 1, 3:57 PM EDT	Special Weather Statement	RNK	Bath	63 min
Aug 1, 4:50 PM EDT	Areal Flood Advisory	RNK	Carroll, Patrick	3 hr
Aug 1, 4:58 PM EDT	Special Weather Statement	RNK	Henry, Patrick	62 min
Aug 1, 5:10 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Patrick	50 min
Aug 1, 5:26 PM EDT	Areal Flood Advisory	RNK	Franklin, Henry, Patrick, City of Martinsville	3 hr
Aug 1, 5:57 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Patrick, City of Martinsville	63 min
Aug 1, 6:35 PM EDT	Special Weather Statement	RNK	Pittsylvania, City of Danville	55 min
Aug 1, 6:58 PM EDT	Areal Flood Advisory	RNK	Franklin, Henry, Pittsylvania, City of Danville	2 hr
Aug 1, 7:04 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Halifax, Pittsylvania	41 min
Aug 1, 7:19 PM EDT	Special Weather Statement	RNK	City of Danville	26 min
Aug 1, 7:45 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte, Halifax, Pittsylvania	45 min
Aug 1, 7:50 PM EDT	Flash Flood Warning	RNK	Henry, Pittsylvania, City of Danville, City of Martinsville	6 hr
Aug 1, 7:53 PM EDT	Special Weather Statement	RNK	City of Danville	67 min
Jul 31, 8:29 PM EDT	Areal Flood Warning	RNK	Wilkes, Yadkin	2 hr
Jul 31, 9:00 PM EDT	Special Weather Statement	RNK	Rockingham	45 min
Jul 31, 9:57 PM EDT	Areal Flood Warning	RNK	Yadkin	2 hr
Aug 1, 7:38 PM EDT	Flash Flood Warning	RNK	Stokes, Surry, Yadkin	6 hr

Nearby

Special Weather Statements in North Carolina, 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.