Alert archive / Virginia / Wind Advisories in 2015

Wind Advisory 9, NWS Blacksburg, VA

March 14, 201520 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina

NWS Blacksburg, VA issued this wind advisory at Mar 14, 2015, 3:20 PM EDT for 20 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina. It took effect at Mar 15, 2015, 12:00 AM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Mar 14, 2015, 3:20 PM EDT (19:20 UTC)
In effect from
Mar 15, 2015, 12:00 AM EDT
Expired
Mar 15, 2015, 4:00 PM EDT
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, Grayson County, VA, Montgomery County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Smyth County, VA, Wythe County, VA

The radar

The Roanoke radar (KFCX), 22 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

Roanoke, VA (KRNK), launched 12:00Z, 7.3 hours before the alert went out and 83 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 2015-03-14Temperature 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 2015-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 square meters per square second.19395878Sfc1 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
612 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
269 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.

149 
WWUS71 KRNK 141920
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
320 PM EDT SAT MAR 14 2015

...STRONG NORTHWEST WINDS LATER TONIGHT THROUGH SUNDAY...

.A COLD FRONT WILL PASS SOUTHEAST ACROSS THE REGION THIS EVENING.
HIGH PRESSURE FOLLOWING THE FRONT WILL COMBINE WITH LOW PRESSURE
OVER NEW ENGLAND TO PRODUCE A STRONG PRESSURE GRADIENT OVERNIGHT
THROUGH MUCH OF SUNDAY. THIS SHOULD RESULT IN STRONG NORTHWEST
WINDS AFTER MIDNIGHT INTO SUNDAY AFTERNOON. WIND GUSTS TO 55 MPH
MAY OCCUR ESPECIALLY ACROSS THE HIGHER ELEVATIONS ALONG THE BLUE
RIDGE.

NCZ001-002-018-VAZ009-012>020-022>024-150330-
/O.NEW.KRNK.WI.Y.0009.150315T0400Z-150315T2000Z/
ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
MARION...WYTHEVILLE...RADFORD...PULASKI...BLACKSBURG...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...
NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...
SALEM...FINCASTLE...LEXINGTON...BUENA VISTA
320 PM EDT SAT MAR 14 2015

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EDT
SUNDAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EDT
SUNDAY.

* LOCATIONS...ALONG THE BLUE RIDGE MOUNTAINS.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...NORTHWEST 15 TO 30 MPH WITH GUSTS TO 50 OR 55 MPH.

* TIMING...AFTER MIDNIGHT INTO SUNDAY AFTERNOON WITH THE STRONGEST
  WINDS FROM JUST BEFORE DAWN THROUGH MIDDAY SUNDAY.

* IMPACTS...WINDS MAY BE STRONG ENOUGH TO TOPPLE TREES AND LEAD TO
  ISOLATED POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS SUSTAINED WINDS OF 31 TO 39 MPH...OR WIND
GUSTS OF 46 TO 57 MPH...ARE EXPECTED. WINDS THIS STRONG WILL
LIKELY CAUSE SPORADIC POWER OUTAGES AND CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. UNFASTENED
ITEMS SUCH AS GARBAGE CANS AND LAWN FURNITURE SHOULD BE MOVED
INDOORS.

&&

$$
4 follow-up statements
838 
WWUS71 KRNK 150125
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
925 PM EDT SAT MAR 14 2015

...STRONG NORTHWEST WINDS OVERNIGHT THROUGH SUNDAY...

.A COLD FRONT WILL PASS SOUTHEAST ACROSS THE REGION TONIGHT. HIGH
PRESSURE FOLLOWING THE FRONT WILL COMBINE WITH LOW PRESSURE OVER
NEW ENGLAND TO PRODUCE A STRONG PRESSURE GRADIENT OVERNIGHT
THROUGH MUCH OF SUNDAY. THIS SHOULD RESULT IN STRONG NORTHWEST
WINDS OVERNIGHT INTO SUNDAY AFTERNOON. WIND GUSTS TO 55 MPH MAY
OCCUR ESPECIALLY ACROSS THE HIGHER ELEVATIONS ALONG THE BLUE
RIDGE.

NCZ001-002-018-VAZ009-012>020-022>024-150930-
/O.CON.KRNK.WI.Y.0009.150315T0400Z-150315T2000Z/
ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
MARION...WYTHEVILLE...RADFORD...PULASKI...BLACKSBURG...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...
NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...
SALEM...FINCASTLE...LEXINGTON...BUENA VISTA
925 PM EDT SAT MAR 14 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT SUNDAY...

* LOCATIONS...ALONG THE BLUE RIDGE MOUNTAINS.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...NORTHWEST 15 TO 30 MPH WITH GUSTS TO 50 OR 55 MPH.

* TIMING...OVERNIGHT INTO SUNDAY AFTERNOON WITH THE STRONGEST
  WINDS FROM JUST BEFORE DAWN THROUGH MIDDAY SUNDAY.

* IMPACTS...WINDS MAY BE STRONG ENOUGH TO TOPPLE TREES AND LEAD 
  TO ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS SUSTAINED WINDS OF 31 TO 39 MPH...OR WIND
GUSTS OF 46 TO 57 MPH...ARE EXPECTED. WINDS THIS STRONG WILL
LIKELY CAUSE SPORADIC POWER OUTAGES AND CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. UNFASTENED
ITEMS SUCH AS GARBAGE CANS AND LAWN FURNITURE SHOULD BE MOVED
INDOORS.

&&

$$
714 
WWUS71 KRNK 150732
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
332 AM EDT SUN MAR 15 2015

...STRONG NORTHWEST WINDS THROUGH TODAY...

.A STRONG PRESSURE GRADIENT BETWEEN DEPARTING LOW OFF THE NEW
ENGLAND COAST...AND HIGH PRESSURE OVER THE MID MISSISSIPPI VALLEY
WILL CREATE A PERIOD OF BRISK WINDS THIS MORNING...MAINLY ACROSS
THE MOUNTAINS...AND ADJACENT VALLEYS. THESE WINDS WILL BEGIN TO
SUBSIDE THIS AFTERNOON TO UNDER ADVISORY LEVELS.

NCZ001-002-018-VAZ009-012>020-022>024-151545-
/O.CON.KRNK.WI.Y.0009.000000T0000Z-150315T2000Z/
ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
MARION...WYTHEVILLE...RADFORD...PULASKI...BLACKSBURG...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...
NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...
SALEM...FINCASTLE...LEXINGTON...BUENA VISTA
332 AM EDT SUN MAR 15 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* LOCATIONS...HIGHER ELEVATIONS OF THE ALLEGHANY HIGHLANDS...AS
  WELL AS THE BLUE RIDGE.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...THE STRONGEST WINDS WILL OCCUR AROUND DAWN THROUGH
  MIDDAY.

* IMPACTS...WINDS MAY BE STRONG ENOUGH TO DOWN WEAKER OR SMALLER
  TREES...LIMBS AND LEAD TO ISOLATED POWER OUTAGES. ANY OUTDOOR
  LOOSE OBJECTS WILL BE BLOWN AROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS SUSTAINED WINDS OF 31 TO 39 MPH...OR WIND
GUSTS OF 46 TO 57 MPH...ARE EXPECTED. WINDS THIS STRONG WILL
LIKELY CAUSE SPORADIC POWER OUTAGES AND CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. UNFASTENED
ITEMS SUCH AS GARBAGE CANS AND LAWN FURNITURE SHOULD BE MOVED
INDOORS.

&&

$$
260 
WWUS71 KRNK 151542
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
1142 AM EDT SUN MAR 15 2015

...STRONG NORTHWEST WINDS THROUGH TODAY...

.A STRONG PRESSURE GRADIENT BETWEEN DEPARTING LOW OFF THE NEW
ENGLAND COAST...AND HIGH PRESSURE OVER THE MID MISSISSIPPI VALLEY
IS RESPONSIBLE FOR THE GUSTY WINDS ACROSS MAINLY THE
MOUNTAINS...AND ADJACENT VALLEYS. THESE WINDS WILL GRADUALLY
SUBSIDE THIS AFTERNOON TO UNDER ADVISORY LEVELS.

NCZ001-002-018-VAZ009-012>020-022>024-152000-
/O.CON.KRNK.WI.Y.0009.000000T0000Z-150315T2000Z/
ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
MARION...WYTHEVILLE...RADFORD...PULASKI...BLACKSBURG...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...
NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...
SALEM...FINCASTLE...LEXINGTON...BUENA VISTA
1142 AM EDT SUN MAR 15 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* LOCATIONS...HIGHER ELEVATIONS OF THE ALLEGHANY HIGHLANDS...AS 
  WELL AS THE BLUE RIDGE.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...STRONGEST WIND AND GUSTS OCCURRING NOW...WILL
  GRADUALLY DECREASE THIS AFTERNOON.

* IMPACTS...WINDS MAY BE STRONG ENOUGH TO DOWN WEAKER OR SMALLER 
  TREES...LIMBS AND LEAD TO ISOLATED POWER OUTAGES. ANY OUTDOOR 
  LOOSE OBJECTS WILL BE BLOWN AROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS SUSTAINED WINDS OF 31 TO 39 MPH...OR WIND
GUSTS OF 46 TO 57 MPH...ARE EXPECTED. WINDS THIS STRONG WILL
LIKELY CAUSE SPORADIC POWER OUTAGES AND CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. UNFASTENED
ITEMS SUCH AS GARBAGE CANS AND LAWN FURNITURE SHOULD BE MOVED
INDOORS.

&&

$$
024 
WWUS71 KRNK 151934 AAA
NPWRNK

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE BLACKSBURG VA
334 PM EDT SUN MAR 15 2015

...WESTERLY WINDS TO SLOWLY DIMINISH INTO EARLY THIS EVENING...


NCZ001-002-018-VAZ009-012>020-022>024-152045-
/O.EXP.KRNK.WI.Y.0009.000000T0000Z-150315T2000Z/
ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
MARION...WYTHEVILLE...RADFORD...PULASKI...BLACKSBURG...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...
NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...
SALEM...FINCASTLE...LEXINGTON...BUENA VISTA
334 PM EDT SUN MAR 15 2015

...WIND ADVISORY WILL EXPIRE AT 4 PM EDT THIS AFTERNOON...

WESTERLY WINDS SHOULD CONTINUE TO SLOWLY DIMINISH TO BELOW
ADVISORY LEVELS OVER THE NEXT COUPLE OF HOURS. HOWEVER A FEW GUSTS
TO 45 MPH MAY STILL OCCUR INTO EARLY THIS EVENING.

$$

Nearby

Wind Advisories in Virginia, 2015Wind Advisories in North Carolina, 2015Every wind advisory in 2015

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.