Alert archive / North Carolina / High Wind Warnings in 2020
High Wind Warning 4, NWS Blacksburg, VA
NWS Blacksburg, VA issued this high wind warning at Dec 21, 2020, 2:15 PM EST for Alleghany County, Ashe County, Watauga County, North Carolina; Grayson County, Virginia. It took effect at Dec 21, 2020, 6:00 PM EST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 21, 2020, 2:15 PM EST (19:15 UTC)
- In effect from
- Dec 21, 2020, 6:00 PM EST
- Expired
- Dec 22, 2020, 12:00 PM EST
- In force
- 18 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Grayson County, VA
The radar
The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 140 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
908 WWUS71 KRNK 211915 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 215 PM EST Mon Dec 21 2020 NCZ001-002-018-VAZ015-220315- /O.UPG.KRNK.WI.Y.0022.201221T2300Z-201222T1700Z/ /O.NEW.KRNK.HW.W.0004.201221T2300Z-201222T1700Z/ Ashe-Alleghany NC-Watauga-Grayson- Including the cities of West Jefferson, Sparta, Boone, Independence, Whitetop, Troutdale, and Volney 215 PM EST Mon Dec 21 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON EST TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Virginia, Grayson County. In North Carolina, Ashe, Alleghany NC and Watauga Counties. * WHEN...From 6 PM this evening to noon EST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Use extra caution when driving, especially if operating a high profile vehicle. * ADDITIONAL DETAILS...In addition to the wind, snow showers are expected overnight into Tuesday morning. Snow accumulations from 1 inch at the lower elevations to 3 inches at the higher elevations can be expected. Blowing and drifting snow will be possible as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NCZ003-019-VAZ019-020-023-024-032>035-WVZ507-220315- /O.EXA.KRNK.WI.Y.0022.201221T2300Z-201222T1700Z/ Surry-Wilkes-Alleghany VA-Bath-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Eastern Greenbrier- Including the cities of Dobson, Wilkesboro, Clifton Forge, Covington, Hot Springs, Fincastle, Lexington, Buena Vista, Stuart, Rocky Mount, Bedford, Amherst, Lewisburg, White Sulphur Springs, and Alderson 215 PM EST Mon Dec 21 2020 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON EST TUESDAY... * WHAT...West winds 10 to 20 mph with gusts up to 40 mph expected. * WHERE...Portions of central, south central, southwest and west central Virginia, north central and northwest North Carolina and southeast West Virginia. * WHEN...From 6 PM this evening to noon EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the wind, snow showers are expected overnight into Tuesday morning. Snow accumulations from 1 inch at the lower elevations to 3 inches at the higher elevations can be expected. Blowing and drifting snow will be possible as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ VAZ007-009>014-016>018-022-WVZ042>044-220315- /O.CON.KRNK.WI.Y.0022.201221T2300Z-201222T1700Z/ Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Carroll-Floyd- Craig-Roanoke-Mercer-Summers-Monroe- Including the cities of Tazewell, Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, Blacksburg, Galax, Floyd, New Castle, Roanoke, Salem, Bluefield, Flat Top, Hinton, Hix, and Union 215 PM EST Mon Dec 21 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON EST TUESDAY... * WHAT...West winds 10 to 20 mph with gusts up to 40 mph expected. * WHERE...Portions of southwest and west central Virginia and southeast West Virginia. * WHEN...From 6 PM this evening to noon EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the wind, snow showers are expected overnight into Tuesday morning. Snow accumulations from 1 inch at the lower elevations to 3 inches at the higher elevations can be expected. Blowing and drifting snow will be possible as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
3 follow-up statements
872 WWUS71 KRNK 212127 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 427 PM EST Mon Dec 21 2020 NCZ001-002-018-VAZ015-220600- /O.CON.KRNK.HW.W.0004.201221T2300Z-201222T1700Z/ Ashe-Alleghany NC-Watauga-Grayson- Including the cities of West Jefferson, Sparta, Boone, Independence, Whitetop, Troutdale, and Volney 427 PM EST Mon Dec 21 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...In Virginia, Grayson County. In North Carolina, Ashe, Alleghany NC and Watauga Counties. * WHEN...From 6 PM this evening to noon EST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Use extra caution when driving, especially if operating a high profile vehicle. * ADDITIONAL DETAILS...In addition to the wind, snow showers are expected overnight into Tuesday morning. Snow accumulations from a coating at the lower elevations to 2 inches at the higher elevations can be expected. Blowing and drifting snow will be possible as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NCZ003-019-VAZ007-009>014-016>020-022>024-032>035-WVZ042>044-507- 220600- /O.CON.KRNK.WI.Y.0022.201221T2300Z-201222T1700Z/ Surry-Wilkes-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery- Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt- Rockbridge-Patrick-Franklin-Bedford-Amherst-Mercer-Summers-Monroe- Eastern Greenbrier- Including the cities of Dobson, Wilkesboro, Tazewell, Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, Blacksburg, Galax, Floyd, New Castle, Clifton Forge, Covington, Hot Springs, Roanoke, Salem, Fincastle, Lexington, Buena Vista, Stuart, Rocky Mount, Bedford, Amherst, Bluefield, Flat Top, Hinton, Hix, Union, Lewisburg, White Sulphur Springs, and Alderson 427 PM EST Mon Dec 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected, especially on the hilltops. * WHERE...Portions of southwest and west central Virginia and southeast West Virginia. * WHEN...From 6 PM this evening to noon EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the wind, snow showers are expected overnight into Tuesday morning. Snow accumulations from a coating at the lower elevations to 2 inches at the higher elevations can be expected. Blowing and drifting snow will be possible as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MBS
457 WWUS71 KRNK 220928 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 428 AM EST Tue Dec 22 2020 NCZ001-002-018-VAZ015-221700- /O.CON.KRNK.HW.W.0004.000000T0000Z-201222T1700Z/ Ashe-Alleghany NC-Watauga-Grayson- Including the cities of West Jefferson, Sparta, Boone, Independence, Whitetop, Troutdale, and Volney 428 AM EST Tue Dec 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...In Virginia, Grayson County. In North Carolina, Ashe, Alleghany NC and Watauga Counties. * WHEN...Until noon EST today. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Use extra caution when driving, especially if operating a high profile vehicle. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NCZ003-019-VAZ007-009>014-016>020-022>024-032>035-WVZ042>044-507- 221700- /O.CON.KRNK.WI.Y.0022.000000T0000Z-201222T1700Z/ Surry-Wilkes-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery- Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt- Rockbridge-Patrick-Franklin-Bedford-Amherst-Mercer-Summers-Monroe- Eastern Greenbrier- Including the cities of Dobson, Wilkesboro, Tazewell, Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, Blacksburg, Galax, Floyd, New Castle, Clifton Forge, Covington, Hot Springs, Roanoke, Salem, Fincastle, Lexington, Buena Vista, Stuart, Rocky Mount, Bedford, Amherst, Bluefield, Flat Top, Hinton, Hix, Union, Lewisburg, White Sulphur Springs, and Alderson 428 AM EST Tue Dec 22 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected, especially on the hilltops. * WHERE...Portions of southwest and west central Virginia, southeast West Virginia, and the foothill in northwest North Carolina. * WHEN...Until noon EST today. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
832 WWUS71 KRNK 221656 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 1156 AM EST Tue Dec 22 2020 NCZ001-002-018-VAZ015-221800- /O.EXP.KRNK.HW.W.0004.000000T0000Z-201222T1700Z/ Ashe-Alleghany NC-Watauga-Grayson- Including the cities of West Jefferson, Sparta, Boone, Independence, Whitetop, Troutdale, and Volney 1156 AM EST Tue Dec 22 2020 ...HIGH WIND WARNING WILL EXPIRE AT NOON EST TODAY... Winds will remain breezy with gusts up to 35 MPH this afternoon. Winds will continue to weaken going into this evening. $$ NCZ003-019-VAZ007-009>014-016>020-022>024-032>035-WVZ042>044-507- 221800- /O.EXP.KRNK.WI.Y.0022.000000T0000Z-201222T1700Z/ Surry-Wilkes-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery- Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt- Rockbridge-Patrick-Franklin-Bedford-Amherst-Mercer-Summers-Monroe- Eastern Greenbrier- Including the cities of Dobson, Wilkesboro, Tazewell, Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, Blacksburg, Galax, Floyd, New Castle, Clifton Forge, Covington, Hot Springs, Roanoke, Salem, Fincastle, Lexington, Buena Vista, Stuart, Rocky Mount, Bedford, Amherst, Bluefield, Flat Top, Hinton, Hix, Union, Lewisburg, White Sulphur Springs, and Alderson 1156 AM EST Tue Dec 22 2020 ...WIND ADVISORY WILL EXPIRE AT NOON EST TODAY... Winds will remain breezy with gusts up to 25 MPH this afternoon. Winds will continue to weaken going into this evening. $$ RCS
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 5:05 AM EST | Wind Advisory | RNK | Alleghany, Ashe, Surry, Watauga, Wilkes | 31 hr |
Nearby
High Wind Warnings in North Carolina, 2020High Wind Warnings in Virginia, 2020Every high wind warning 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.