Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Blacksburg, VA

August 2, 2020Ashe County, Watauga County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 2, 2020, 5:21 PM EDT for Ashe County, Watauga County, North Carolina. It was in force for 39 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 2, 2020, 5:21 PM EDT (21:21 UTC)
Expired: Aug 2, 2020, 6:00 PM EDT
In force: 39 min
Issued by: NWS Blacksburg, VA

Counties Ashe County, NC, Watauga County, NC

The radar

The Roanoke radar (KFCX), 149 km from the middle of the area, began a volume at 21:22 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, 9.4 hours before the alert went out and 164 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: 564 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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, 3:17 PM EDT, 2 hours 4 minutes earlier.

Area forecast discussion, Aug 2, 3:17 PM EDT, 2 hours 4 minutes before

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Hazardous weather outlook, Aug 2, 3:40 PM EDT, 1 hour 41 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
340 PM EDT Sun Aug 2 2020

NCZ001>003-018-019-VAZ015>017-032-031945-
Ashe-Alleghany NC-Surry-Watauga-Wilkes-Grayson-Carroll-Floyd-Patrick-
340 PM EDT Sun Aug 2 2020

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

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

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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 may be needed.

NCZ004>006-020-VAZ022>024-033>035-043>047-058-059-031945-
Stokes-Rockingham-Caswell-Yadkin-Roanoke-Botetourt-Rockbridge-
Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-Appomattox-
Buckingham-Halifax-Charlotte-
340 PM EDT Sun Aug 2 2020

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY
EVENING...

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

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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 may be needed.

VAZ007-009>014-018>020-WVZ042>044-507-508-031945-
Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Craig-
Alleghany VA-Bath-Mercer-Summers-Monroe-Eastern Greenbrier-
Western Greenbrier-
340 PM EDT Sun Aug 2 2020

This Hazardous Weather Outlook is for southwest Virginia, west
central Virginia and southeast West Virginia.

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are expected again today. A few of these
could become strong to severe. Damaging wind gusts and very heavy
rainfall resulting in localized flash flooding will be the main
threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Scattered to numerous showers and a few thunderstorms are expected
Monday through Wednesday, with isolated to scattered thunderstorms
possible Thursday through Saturday. An isolated strong to severe
thunderstorm will be possible each day, mainly during the afternoon
and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

RCS

In the hours before

Special weather statement, Aug 2, 3:33 PM EDT, 1 hour 48 minutes before

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Local storm report, Aug 2, 3:41 PM EDT, 1 hour 40 minutes before

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Special weather statement, Aug 2, 4:04 PM EDT, 1 hour 17 minutes before

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Special weather statement, Aug 2, 4:19 PM EDT, 1 hour 2 minutes before

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Special weather statement, Aug 2, 4:48 PM EDT, 33 minutes before

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Special weather statement, Aug 2, 5:21 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
521 PM EDT Sun Aug 2 2020

NCZ001-002-018-022200-
Ashe-Watauga-Alleghany-
521 PM EDT Sun Aug 2 2020

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN
ALLEGHANY...WATAUGA AND ASHE COUNTIES IN NORTHWESTERN NORTH
CAROLINA...

At 521 PM EDT, strong thunderstorms were clustered over Baldwin, or
near West Jefferson, moving northeast at 30 mph.

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

Locations impacted include...
Boone...
Jefferson...
West Jefferson...
Blowing Rock...
Beech Mountain...
Lansing...
and Foscoe.

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

LAT...LON 3630 8190 3636 8180 3634 8177 3634 8171
      3641 8174 3647 8170 3653 8171 3659 8168
      3657 8109 3637 8132 3636 8136 3634 8136
      3612 8162 3611 8181 3616 8183 3619 8186
      3619 8188 3621 8190 3626 8189 3629 8192
TIME...MOT...LOC 2121Z 218DEG 25KT 3637 8156

BMG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:02 PM EDT	Special Weather Statement	RNK	Charlotte	28 min
Aug 1, 8:05 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Lexington	25 min
Aug 1, 8:11 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	35 min
Aug 2, 4:55 AM EDT	Flash Flood Watch	RNK	Amherst, Appomattox, Bedford, Bland, Botetourt, Buckingham and 28 more	50 hr
Aug 2, 1:40 PM EDT	Special Weather Statement	RNK	City of Lynchburg	35 min
Aug 2, 2:08 PM EDT	Special Weather Statement	RNK	Appomattox	37 min
Aug 2, 2:10 PM EDT	Special Weather Statement	RNK	Franklin	35 min
Aug 2, 2:25 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	35 min
Aug 2, 2:38 PM EDT	Special Weather Statement	RNK	Buckingham	22 min
Aug 2, 2:42 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	22 min
Aug 2, 4:19 PM EDT	Special Weather Statement	RNK	Patrick	26 min
Aug 2, 4:48 PM EDT	Special Weather Statement	RNK	City of Martinsville	27 min
Aug 2, 5:24 PM EDT	Special Weather Statement	RNK	Campbell	36 min
Aug 2, 6:24 PM EDT	Special Weather Statement	RNK	Charlotte	51 min
Aug 2, 6:59 PM EDT	Areal Flood Advisory	RNK	Montgomery, Pulaski	63 min
Aug 2, 7:24 PM EDT	Special Weather Statement	RNK	Charlotte	36 min
Aug 2, 2:53 PM EDT	Special Weather Statement	RNK	Wilkes	37 min
Aug 2, 3:33 PM EDT	Special Weather Statement	RNK	Surry	27 min
Aug 2, 4:04 PM EDT	Special Weather Statement	RNK	Surry	26 min
Aug 1, 8:20 PM EDT	Special Weather Statement	RNK	Greenbrier	25 min
Aug 1, 8:42 PM EDT	Special Weather Statement	RNK	Greenbrier	48 min

Nearby

Special Weather Statements in North Carolina, 2020 Every special weather statement in 2020

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.