Alert archive / Virginia / Wind Advisories in 2018

Wind Advisory 8, NWS Blacksburg, VA

March 21, 201824 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina; 4 counties in West Virginia

NWS Blacksburg, VA issued this wind advisory at Mar 21, 2018, 3:02 PM EDT for 24 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina; 4 counties in West Virginia. It took effect at Mar 21, 2018, 8:00 PM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Mar 21, 2018, 3:02 PM EDT (19:02 UTC)
In effect from
Mar 21, 2018, 8:00 PM EDT
Expired
Mar 22, 2018, 12:00 PM EDT
In force
16 hr
Issued by
NWS Blacksburg, VA
All 31 counties

Alleghany County, NC, Ashe County, NC, Watauga County, NC, Alleghany County, VA, Amherst County, VA, Bath County, VA, Bland County, VA, Botetourt County, VA, Carroll County, VA, City of Buena Vista, VA, City of Covington, VA, City of Galax, VA, City of Lexington, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Giles County, VA, Grayson County, VA, Montgomery County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Smyth County, VA, Tazewell County, VA, Wythe County, VA, Greenbrier County, WV, Mercer County, WV, Monroe County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 32 km from the middle of the area, began a volume at 19:00 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

Roanoke, VA (KRNK), launched 12:00Z, 7.0 hours before the alert went out and 89 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2018-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2018-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -119 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-119 m²/s²
0-3 km storm-relative helicity
-123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

764 
WWUS71 KRNK 211902
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
302 PM EDT Wed Mar 21 2018

...Gusty northwest winds tonight through early Thursday...

.Northwest winds will continue to increase tonight along and west
of the Blue Ridge as a complex low pressure area moves away from
the mid-Atlantic coast. Significant accumulations of wet snow 
have fallen across a large part of the Wind Advisory area, between
4 and 10 inches. Though snow has ended, snow weighing on trees 
and powerlines will make them more vulnerable to being downed. 
Peak wind gusts are expected between midnight and mid- morning 
Thursday before easing by late morning.


VAZ010>014-016>020-022>024-035-WVZ044-507-221000-
/O.NEW.KRNK.WI.Y.0008.180322T0000Z-180322T1600Z/
Bland-Giles-Wythe-Pulaski-Montgomery-Carroll-Floyd-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Amherst-Monroe-
Eastern Greenbrier-
Including the cities of Bland, Pearisburg, Wytheville, Radford, 
Pulaski, Blacksburg, Galax, Floyd, New Castle, Clifton Forge, 
Covington, Hot Springs, Roanoke, Salem, Fincastle, Lexington, 
Buena Vista, Amherst, Union, Lewisburg, White Sulphur Springs, 
and Alderson
302 PM EDT Wed Mar 21 2018

...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON EDT
THURSDAY...

The National Weather Service in Blacksburg has issued a Wind
Advisory, which is in effect from 8 PM this evening to noon EDT
Thursday.

* Locations...The New River Valley, the Blue Ridge Mountains
  between Carroll and Amherst Counties, the southern Shenandoah
  Valley, Alleghany Highlands and eastern Greenbrier County.

* Hazards...Strong wind gusts, downing trees and powerlines
  weighed down by significant accumulation of wet snow.

* Winds...Northwest 15 to 25 mph with gusts up to 50 mph.

* Timing...Northwest winds will increase this evening. Peak winds
  are expected to occur between midnight and mid-morning Thursday.
  Wind gusts then begin to abate by late morning Thursday. 

* Impacts...As snow weighs on trees and powerlines, they are more
  vulnerable to being downed.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory is issued when sustained winds are forecast to be
31 to 39 MPH or gusts will range between 46 and 57 MPH. Winds of
these magnitudes may cause minor property damage without extra
precautions. Motorists in high profile vehicles should use extra
caution until the winds subside.

&&

$$

Loconto
3 follow-up statements
986 
WWUS71 KRNK 220329
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
1129 PM EDT Wed Mar 21 2018

...Gusty northwest winds through early Thursday...

.Northwest winds will continue to increase tonight along and west
of the Blue Ridge as a complex low pressure area moves away from
the mid-Atlantic coast. Any lingering snow weighing on trees will
make them more vulnerable to being downed. 

NCZ001-002-018-VAZ007-009-015-WVZ042-043-508-221130-
/O.EXA.KRNK.WI.Y.0008.000000T0000Z-180322T1600Z/
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Grayson-Mercer-Summers-
Western Greenbrier-
Including the cities of West Jefferson, Sparta, Boone, Tazewell, 
Marion, Independence, Whitetop, Troutdale, Volney, Bluefield, 
Flat Top, Hinton, Hix, Quinwood, Duo, and Rainelle
1129 PM EDT Wed Mar 21 2018

...WIND ADVISORY IN EFFECT UNTIL NOON EDT THURSDAY...

The National Weather Service in Blacksburg has issued a Wind
Advisory, which is in effect until noon EDT Thursday.

* Locations...Southeast West Virginia, the Mountain Empire of
  Southwest Virginia, and the High Country of North Carolina.

* Hazards...Strong wind gusts. 

* Winds...Northwest 15 to 25 mph with gusts up to 50 mph.

* Timing...Midnight through mid-morning Thursday. 

* Impacts...Possible downed weaker trees and limbs weighed down 
  by any lingering wet snow. Isolated power outages possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory is issued when sustained winds are forecast to be
31 to 39 MPH or gusts will range between 46 and 57 MPH. Winds of
these magnitudes may cause minor property damage without extra
precautions. Motorists in high profile vehicles should use extra
caution until the winds subside.



&&

$$

VAZ010>014-016>020-022>024-035-WVZ044-507-221130-
/O.CON.KRNK.WI.Y.0008.000000T0000Z-180322T1600Z/
Bland-Giles-Wythe-Pulaski-Montgomery-Carroll-Floyd-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Amherst-Monroe-
Eastern Greenbrier-
Including the cities of Bland, Pearisburg, Wytheville, Radford, 
Pulaski, Blacksburg, Galax, Floyd, New Castle, Clifton Forge, 
Covington, Hot Springs, Roanoke, Salem, Fincastle, Lexington, 
Buena Vista, Amherst, Union, Lewisburg, White Sulphur Springs, 
and Alderson
1129 PM EDT Wed Mar 21 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EDT THURSDAY...

* Locations...The New River Valley, the Blue Ridge Mountains 
  between Carroll and Amherst Counties, the southern Shenandoah 
  Valley, Alleghany Highlands and eastern Greenbrier County.

* Hazards...Strong wind gusts.

* Winds...Northwest 15 to 25 mph with gusts up to 50 mph.

* Timing...Between midnight and mid-morning Thursday. 

* Impacts...Possible downed weaker trees and limbs weighed down 
  by any lingering wet snow. Isolated power outages possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory is issued when sustained winds are forecast to be
31 to 39 MPH or gusts will range between 46 and 57 MPH. Winds of
these magnitudes may cause minor property damage without extra
precautions. Motorists in high profile vehicles should use extra
caution until the winds subside.

&&

$$
354 
WWUS71 KRNK 220748
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
348 AM EDT Thu Mar 22 2018

...Gusty northwest winds into this morning...

.Northwest winds will remain strong across the mountains into this
morning as a complex low pressure area moves away from the mid- 
Atlantic coast. Any lingering snow weighing on trees will make 
them more vulnerable to being downed.

NCZ001-002-018-VAZ007-009>020-022>024-035-WVZ042>044-507-508-
221600-
/O.CON.KRNK.WI.Y.0008.000000T0000Z-180322T1600Z/
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Giles-Wythe-
Pulaski-Montgomery-Grayson-Carroll-Floyd-Craig-Alleghany VA-Bath-
Roanoke-Botetourt-Rockbridge-Amherst-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
Including the cities of West Jefferson, Sparta, Boone, Tazewell, 
Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, 
Blacksburg, Independence, Whitetop, Troutdale, Volney, Galax, 
Floyd, New Castle, Clifton Forge, Covington, Hot Springs, 
Roanoke, Salem, Fincastle, Lexington, Buena Vista, Amherst, 
Bluefield, Flat Top, Hinton, Hix, Union, Lewisburg, 
White Sulphur Springs, Alderson, Quinwood, Duo, and Rainelle
348 AM EDT Thu Mar 22 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY...

* Locations...Along and west of the Blue Ridge.

* Hazards...Strong wind gusts.

* Winds...Northwest 15 to 25 mph with gusts up to 50 mph.

* Timing...Mainly into this morning.

* Impacts...Possible downed weaker trees and limbs weighed down 
  by any lingering wet snow. Isolated power outages possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory is issued when sustained winds are forecast to be
31 to 39 MPH or gusts will range between 46 and 57 MPH. Winds of
these magnitudes may cause minor property damage without extra
precautions. Motorists in high profile vehicles should use extra
caution until the winds subside.

&&

$$
562 
WWUS71 KRNK 221605
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
1205 PM EDT Thu Mar 22 2018

...Wind speeds will gradually diminish this afternoon...

NCZ001-002-018-VAZ007-009>020-022>024-035-WVZ042>044-507-508-
221715-
/O.EXP.KRNK.WI.Y.0008.000000T0000Z-180322T1600Z/
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Giles-Wythe-
Pulaski-Montgomery-Grayson-Carroll-Floyd-Craig-Alleghany VA-Bath-
Roanoke-Botetourt-Rockbridge-Amherst-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
Including the cities of West Jefferson, Sparta, Boone, Tazewell, 
Marion, Bland, Pearisburg, Wytheville, Radford, Pulaski, 
Blacksburg, Independence, Whitetop, Troutdale, Volney, Galax, 
Floyd, New Castle, Clifton Forge, Covington, Hot Springs, 
Roanoke, Salem, Fincastle, Lexington, Buena Vista, Amherst, 
Bluefield, Flat Top, Hinton, Hix, Union, Lewisburg, 
White Sulphur Springs, Alderson, Quinwood, Duo, and Rainelle
1205 PM EDT Thu Mar 22 2018

...WIND ADVISORY HAS EXPIRED...

Southwest Virginia, northwest north Carolina and southeast West
Virginia will remain between a low pressure system well off the
New Jersey coast and high pressure over the Mid Mississippi
Valley. 

The wind will be out of the northwest around 10 mph with gusts up
to 35 mph. Wind gusts will gradually diminish late this afternoon
and evening. 


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 8:39 PM EDTSpecial Weather StatementRNKFloyd, Franklin, Patrick51 min
Mar 20, 8:43 PM EDTSpecial Weather StatementRNKGiles, Montgomery, Pulaski, City of Radford62 min
Mar 20, 9:05 PM EDTSpecial Weather StatementRNKHenry, Pittsylvania, City of Danville, City of Martinsville55 min
Mar 20, 9:34 PM EDTSpecial Weather StatementRNKAlleghany, Botetourt, Craig, Giles, Montgomery, Roanoke and 4 more56 min
Mar 20, 9:56 PM EDTSpecial Weather StatementRNKBedford, Campbell, City of Lynchburg64 min
Mar 20, 10:34 PM EDTSpecial Weather StatementRNKAlleghany, Craig, City of Covington56 min
Mar 20, 10:46 PM EDTSpecial Weather StatementRNKAmherst, Appomattox, Campbell, Rockbridge, City of Buena Vista, City of Lexington and 1 more44 min
Mar 21, 6:53 AM EDTSpecial Weather StatementRNKFranklin, City of Roanoke, City of Salem52 min
Mar 21, 7:34 AM EDTSpecial Weather StatementRNKBedford, Craig, Giles, Montgomery, Roanoke, City of Roanoke and 1 more56 min
Mar 21, 6:21 PM EDTSpecial Weather StatementRNKCarroll, Floyd, Giles, Montgomery, Pulaski, City of Radford54 min
Mar 21, 7:13 PM EDTSpecial Weather StatementRNKGiles, Montgomery, Pulaski, City of Radford62 min

Nearby

Wind Advisories in Virginia, 2018Wind Advisories in West Virginia, 2018Wind Advisories in North Carolina, 2018Every wind advisory 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.