Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Blacksburg, VA

July 22, 2011Surry County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Jul 22, 2011, 4:39 PM EDT for Surry County, North Carolina. It was in force for 66 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: Jul 22, 2011, 4:39 PM EDT (20:39 UTC)
Expired: Jul 22, 2011, 5:45 PM EDT
In force: 66 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 20:42 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, 8.7 hours before the alert went out and 102 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: 2055 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jul 22, 3:34 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Jul 22, 3:34 PM EDT, 1 hour 5 minutes before

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Hazardous weather outlook, Jul 22, 4:04 PM EDT, 35 minutes before

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In the hours before

Local storm report, Jul 22, 3:08 PM EDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
308 PM EDT FRI JUL 22 2011

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

0135 PM     TSTM WND DMG     4 WSW BLAND             37.08N 81.18W
07/22/2011                   BLAND              VA   911 CALL CENTER

            TREE BLOWN DOWN ON SOUTH SCENIC HIGHWAY.

&&

CHENARD

Special weather statement, Jul 22, 3:15 PM EDT, 1 hour 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
315 PM EDT FRI JUL 22 2011

VAZ015-222000-
GRAYSON VA-
315 PM EDT FRI JUL 22 2011

...A STRONG THUNDERSTORM WILL AFFECT GRAYSON COUNTY...

AT 313 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTH OF
INDEPENDENCE...MOVING NORTHWEST AT 10 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. VERY HEAVY RAIN
WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND
QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

THIS STORM WILL BE NEAR ELK CREEK AROUND 330 PM AND COMERS ROCK
AROUND 400 PM.

LAT...LON 3675 8129 3676 8118 3677 8115 3676 8114
      3677 8112 3666 8104 3663 8119

RCS

Special weather statement, Jul 22, 3:45 PM EDT, 54 minutes before

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Local storm report, Jul 22, 3:55 PM EDT, 44 minutes before

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Local storm report, Jul 22, 4:17 PM EDT, 22 minutes before

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Special weather statement, Jul 22, 4:39 PM EDT, 0 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
Jul 22, 12:26 PM EDT	Special Weather Statement	RNK	Smyth	49 min
Jul 22, 1:05 PM EDT	Special Weather Statement	RNK	Patrick	40 min
Jul 22, 1:14 PM EDT	Special Weather Statement	RNK	Bland	46 min
Jul 22, 1:20 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Tazewell, Wythe	40 min
Jul 22, 1:55 PM EDT	Special Weather Statement	RNK	Tazewell	35 min
Jul 22, 2:58 PM EDT	Special Weather Statement	RNK	City of Galax	47 min
Jul 22, 3:00 PM EDT	Special Weather Statement	RNK	Pulaski	45 min
Jul 22, 3:15 PM EDT	Special Weather Statement	RNK	Grayson	45 min
Jul 22, 3:18 PM EDT	Severe Thunderstorm Warning	RNK	Pulaski, City of Radford	57 min
Jul 22, 3:36 PM EDT	Flash Flood Warning	RNK	Smyth, Tazewell	5 hr
Jul 22, 3:52 PM EDT	Heat Advisory	RNK	Amherst, Appomattox, Buckingham, Campbell, Charlotte, Halifax and 5 more	28 hr
Jul 22, 5:23 PM EDT	Special Weather Statement	RNK	Campbell	37 min
Jul 22, 5:27 PM EDT	Special Weather Statement	RNK	Patrick	33 min
Jul 22, 7:02 PM EDT	Special Weather Statement	RNK	Bedford	43 min
Jul 22, 7:21 PM EDT	Special Weather Statement	RNK	Pittsylvania	39 min
Jul 22, 7:38 PM EDT	Special Weather Statement	RNK	Bath	37 min
Jul 22, 1:44 PM EDT	Special Weather Statement	RNK	Ashe	46 min
Jul 22, 2:11 PM EDT	Special Weather Statement	RNK	Wilkes	64 min
Jul 22, 2:20 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Ashe	41 min
Jul 22, 2:50 PM EDT	Special Weather Statement	RNK	Ashe	55 min
Jul 22, 3:45 PM EDT	Special Weather Statement	RNK	Ashe	45 min
Jul 22, 4:50 PM EDT	Special Weather Statement	RNK	Summers	55 min
Jul 22, 7:47 PM EDT	Special Weather Statement	RNK	Greenbrier	43 min

Nearby

Special Weather Statements in North Carolina, 2011 Every special weather statement in 2011

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.