Alert archive / Virginia / Wind Advisories in 2017

Wind Advisory 8, NWS Blacksburg, VA

March 10, 2017Alleghany County, Ashe County, Watauga County, North Carolina; 20 counties in Virginia

NWS Blacksburg, VA issued this wind advisory at Mar 10, 2017, 5:03 AM EST for Alleghany County, Ashe County, Watauga County, North Carolina; 20 counties in Virginia. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Mar 10, 2017, 5:03 AM EST (10:03 UTC)
Expired
Mar 10, 2017, 9:00 PM EST
In force
16 hr
Issued by
NWS Blacksburg, VA
All 23 counties

Alleghany County, NC, Ashe County, NC, Watauga County, NC, Alleghany County, VA, Bath 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, Wythe County, VA

The radar

The Roanoke radar (KFCX), 22 km from the middle of the area, began a volume at 10:03 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 00:00Z, 10.1 hours before the alert went out and 79 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 00:00Z on 2017-03-10Temperature 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 00:00Z on 2017-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.1939587897117Sfc1 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
3116 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

683 
WWUS71 KRNK 101003
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
503 AM EST Fri Mar 10 2017

...Windy and Turning Colder...

.The passage of a strong cold front will bring
windy conditions and falling temperatures today.


NCZ001-002-018-VAZ015>017-102100-
/O.NEW.KRNK.WI.Y.0008.170310T1003Z-170311T0200Z/
Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-
Including the cities of West Jefferson, Sparta, Boone, 
Independence, Whitetop, Troutdale, Volney, Galax, and Floyd
503 AM EST Fri Mar 10 2017

...WIND ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING...

The National Weather Service in Blacksburg has issued a Wind
Advisory, which is in effect until 9 PM EST this evening.

* Locations...High Country of North Carolina, and the Blue Ridge 
Parkway from North Carolina to near Roanoke Virginia.

* Hazards...Strong wind gusts.

* Winds...Northwest 20 to 30 mph with gusts of 40 to 50 mph.

* Timing...through today.

* Impacts...Strong winds may blow down tree limbs resulting in
  scattered power outages. Outdoor items such as patio furniture
  and trash cans may be blown over. Driving will be difficult,
  especially for high profile vehicles.

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.

&&

$$
2 follow-up statements
039 
WWUS71 KRNK 101805
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
105 PM EST Fri Mar 10 2017

...Windy and Turning Colder...

.The passage of a strong cold front will bring windy conditions
and falling temperatures today.

VAZ011>014-018>020-022>024-110200-
/O.EXA.KRNK.WI.Y.0008.000000T0000Z-170311T0200Z/
Giles-Wythe-Pulaski-Montgomery-Craig-Alleghany VA-Bath-Roanoke-
Botetourt-Rockbridge-
Including the cities of Pearisburg, Wytheville, Radford, Pulaski,
Blacksburg, New Castle, Clifton Forge, Covington, Hot Springs, 
Roanoke, Salem, Fincastle, Lexington, and Buena Vista
105 PM EST Fri Mar 10 2017

...WIND ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING...

The National Weather Service in Blacksburg has issued a Wind
Advisory, which is in effect until 9 PM EST this evening.

* Locations...High Country of North Carolina, and the Blue Ridge 
  Parkway from North Carolina to near Roanoke Virginia.

* Hazards...Strong wind gusts.

* Winds...Northwest 20 to 30 mph with gusts of 40 to 50 mph.

* Timing...through early this evening.

* Impacts...Strong winds may blow down tree limbs resulting in 
  scattered power outages. Outdoor items such as patio furniture 
  and trash cans may be blown over. Driving will be difficult, 
  especially for high profile vehicles.

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.

&&

$$

NCZ001-002-018-VAZ015>017-110200-
/O.CON.KRNK.WI.Y.0008.000000T0000Z-170311T0200Z/
Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-
Including the cities of West Jefferson, Sparta, Boone, 
Independence, Whitetop, Troutdale, Volney, Galax, and Floyd
105 PM EST Fri Mar 10 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM EST THIS EVENING...

* Locations...High Country of North Carolina, and the Blue Ridge 
  Parkway from North Carolina to near Roanoke Virginia.

* Hazards...Strong wind gusts.

* Winds...Northwest 25 to 35 mph with gusts of 50 to 55 mph.

* Timing...through early this evening.

* Impacts...Strong winds may blow down tree limbs resulting in 
  scattered power outages. Outdoor items such as patio furniture 
  and trash cans may be blown over. Driving will be difficult, 
  especially for high profile vehicles.

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.

&&

$$

MBS
845 
WWUS71 KRNK 110142
NPWRNK

URGENT - WEATHER MESSAGE
National Weather Service Blacksburg VA
842 PM EST Fri Mar 10 2017

...Northwest Winds to Slowly Diminish Overnight...


NCZ001-002-018-VAZ011>020-022>024-110245-
/O.EXP.KRNK.WI.Y.0008.000000T0000Z-170311T0200Z/
Ashe-Alleghany NC-Watauga-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-
Rockbridge-
Including the cities of West Jefferson, Sparta, Boone, 
Pearisburg, Wytheville, Radford, Pulaski, Blacksburg, 
Independence, Whitetop, Troutdale, Volney, Galax, Floyd, 
New Castle, Clifton Forge, Covington, Hot Springs, Roanoke, 
Salem, Fincastle, Lexington, and Buena Vista
842 PM EST Fri Mar 10 2017

...WIND ADVISORY WILL EXPIRE AT 9 PM EST THIS EVENING...

Northwest winds should continue to diminish overnight as high
pressure builds in from the northwest. Thus the wind advisory 
will be allowed to expire. However a few gusts to 45 mph or 
briefly stronger may continue across the higher elevations until 
around midnight.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 5:06 AM ESTWinter Storm WatchRNKAshe, Watauga10 hr
Mar 10, 2:36 PM ESTWinter Storm WarningRNKAshe, Watauga13 hr
Mar 10, 2:36 PM ESTWinter Weather AdvisoryRNKAlleghany, Ashe, Surry, Watauga, Wilkes, Yadkin42 hr

Nearby

Wind Advisories in Virginia, 2017Wind Advisories in North Carolina, 2017Every wind advisory 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; radar from the NEXRAD Level II archive.