Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Blacksburg, VA

August 18, 2017Surry County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 18, 2017, 1:32 PM EDT for Surry County, North Carolina. It was in force for 28 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 18, 2017, 1:32 PM EDT (17:32 UTC)
Expired: Aug 18, 2017, 2:00 PM EDT
In force: 28 min
Issued by: NWS Blacksburg, VA

County Surry County, NC

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.5 hours before the alert went out and 131 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: 87 J/kg
Mixed-layer CIN: -169 J/kg
Mixed-layer LCL: 1861 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 67 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 Aug 18, 12:48 PM EDT, 44 minutes earlier.

Area forecast discussion, Aug 18, 12:48 PM EDT, 44 minutes before

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Hazardous weather outlook, Aug 18, 3:39 AM EDT, 9 hours 53 minutes before

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In the hours before

Local storm report, Aug 18, 11:55 AM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1155 AM EDT FRI AUG 18 2017

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

0754 PM     TSTM WND DMG     3 SSW NORTH WILKESBORO  36.13N 81.16W
08/17/2017                   WILKES             NC   911 CALL CENTER

            TREE LIMB BROUGHT DOWN POWER LINE ON GILREATH STREET.
            TIME RADAR ESTIMATED.

&&

JRUCKMAN

Local storm report, Aug 18, 11:57 AM EDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1157 AM EDT FRI AUG 18 2017

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

0754 PM     TSTM WND DMG     1 SW NORTH WILKESBORO   36.16N 81.16W
08/17/2017                   WILKES             NC   911 CALL CENTER

            TREE DOWN ON BOONE TRAIL ROAD NEAR 421

&&

JRUCKMAN

Special weather statement, Aug 18, 1:32 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
132 PM EDT FRI AUG 18 2017

NCZ003-VAZ016-032-181800-
Surry-Patrick-Carroll-
132 PM EDT FRI AUG 18 2017

...A STRONG THUNDERSTORM WILL AFFECT
NORTHEASTERN SURRY...SOUTHEASTERN CARROLL AND SOUTHWESTERN PATRICK
COUNTIES...

At 132 PM EDT, a strong thunderstorm was located over Bottom, moving
east at 20 mph.

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

Locations impacted include...
Mount Airy...
Flat Rock...
Dobson...
Pilot Mountain...
and Cana.

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 3639 8081 3656 8085 3656 8084 3657 8085
      3666 8046 3655 8044 3639 8045
TIME...MOT...LOC 1732Z 261DEG 19KT 3650 8075

JR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 8:05 PM EDT	Special Weather Statement	RNK	Botetourt	40 min
Aug 17, 8:16 PM EDT	Special Weather Statement	RNK	Buckingham	59 min
Aug 18, 3:19 PM EDT	Special Weather Statement	RNK	Botetourt	41 min
Aug 18, 3:21 PM EDT	Special Weather Statement	RNK	Bedford	39 min
Aug 18, 4:34 PM EDT	Special Weather Statement	RNK	Appomattox, Campbell, Pittsylvania	56 min
Aug 18, 5:01 PM EDT	Special Weather Statement	RNK	City of Lynchburg	44 min
Aug 18, 5:09 PM EDT	Special Weather Statement	RNK	Henry, Patrick	51 min
Aug 18, 5:31 PM EDT	Special Weather Statement	RNK	Appomattox, Campbell	44 min
Aug 18, 5:46 PM EDT	Special Weather Statement	RNK	Buckingham, City of Lynchburg	29 min
Aug 18, 5:56 PM EDT	Special Weather Statement	RNK	Henry, Pittsylvania, City of Martinsville	34 min
Aug 18, 6:19 PM EDT	Special Weather Statement	RNK	Charlotte	26 min
Aug 18, 6:33 PM EDT	Special Weather Statement	RNK	Pittsylvania	42 min
Aug 18, 7:13 PM EDT	Special Weather Statement	RNK	Charlotte	62 min
Aug 18, 3:07 PM EDT	Special Weather Statement	RNK	Caldwell	23 min
Aug 18, 3:27 PM EDT	Special Weather Statement	RNK	Wilkes	48 min
Aug 18, 4:05 PM EDT	Special Weather Statement	RNK	Surry	40 min
Aug 18, 4:59 PM EDT	Special Weather Statement	RNK	Yadkin	46 min
Aug 18, 5:34 PM EDT	Special Weather Statement	RNK	Stokes	26 min
Aug 18, 6:52 PM EDT	Special Weather Statement	RNK	Rockingham	38 min
Aug 18, 7:20 PM EDT	Special Weather Statement	RNK	Caswell	55 min
Aug 17, 9:11 PM EDT	Special Weather Statement	RNK	Greenbrier	64 min

Nearby

Special Weather Statements in North Carolina, 2017 Every special weather statement in 2017

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.