Alert archive / North Carolina / Wind Advisories in 2016

Wind Advisory 9, NWS Blacksburg, VA

April 7, 2016Ashe County, Watauga County, North Carolina; Grayson County, Virginia

NWS Blacksburg, VA issued this wind advisory at Apr 7, 2016, 9:21 AM EDT for Ashe County, Watauga County, North Carolina; Grayson County, Virginia. It took effect at Apr 7, 2016, 12:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 7, 2016, 9:21 AM EDT (13:21 UTC)
In effect from
Apr 7, 2016, 12:00 PM EDT
Expired
Apr 7, 2016, 8:00 PM EDT
In force
8 hr
Issued by
NWS Blacksburg, VA

Counties Ashe County, NC, Watauga County, NC, Grayson County, VA

The radar

The Roanoke radar (KFCX), 125 km from the middle of the area, began a volume at 13:25 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, 1.4 hours before the alert went out and 147 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, Greensboro/Hi Pt, NC at 12:00Z on 2016-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 12:00Z on 2016-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
588 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

576 
WWUS71 KRNK 071321
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
921 AM EDT THU APR 7 2016

...WEST WINDS WILL BECOME STRONG AND GUSTY THIS AFTERNOON...

.A FRONT MOVES THROUGH THIS AFTERNOON ALLOWING WINDS TO INCREASE
FROM THE WEST AND GUST UP TO 50 MPH OVER THE HIGH COUNTRY OF NORTH
CAROLINA...INTO THE GRAYSON HIGHLANDS.

NCZ001-018-VAZ015-072130-
/O.NEW.KRNK.WI.Y.0009.160407T1600Z-160408T0000Z/
ASHE-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...INDEPENDENCE...
WHITETOP...TROUTDALE...VOLNEY
921 AM EDT THU APR 7 2016

...WIND ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING.

* LOCATIONS...HIGH COUNTRY OF NORTH CAROLINA...AND THE GRAYSON
  HIGHLANDS.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...MIDDAY UNTIL 8 PM TODAY.

* IMPACTS...DRIVING WILL BE IMPACTED BY THE STRONG
  WINDS...ESPECIALLY HIGH PROFILE VEHICLES. SOME SMALLER TREES AND
  LIMBS COULD BE BLOWN DOWN...WITH ISOLATED POWER OUTAGES
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WIND GUSTS OF MORE THAN 45 TO 55 MPH
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.



&&

$$
2 follow-up statements
353 
WWUS71 KRNK 071936
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
336 PM EDT THU APR 7 2016

...STRONG AND GUSTY WINDS UNTIL EARLY EVENING...
...ANOTHER FREEZE TONIGHT FOR THE MOUNTAINS...

.STRONG GUSTY WINDS WILL CONTINUE TO AFFECT THE HIGH COUNTRY OF
NORTH CAROLINA INTO THE GRAYSON HIGHLANDS THROUGH EARLY
EVENING...THEN SUBSIDE OVERNIGHT. TEMPERATURES LATE TONIGHT ARE
EXPECTED TO FALL AROUND FREEZING.

NCZ001-018-080345-
/O.NEW.KRNK.FZ.W.0006.160408T0600Z-160408T1400Z/
/O.CON.KRNK.WI.Y.0009.000000T0000Z-160408T0000Z/
ASHE-WATAUGA-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE
336 PM EDT THU APR 7 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY.

* TEMPERATURES...LOWS 27 TO 32.

* LOCATIONS...HIGH COUNTRY OF NORTH CAROLINA.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...WINDS UNTIL 8 PM TODAY. FREEZING TEMPERATURES 2 AM
  UNTIL 10 AM.

* IMPACTS...DRIVING WILL BE IMPACTED BY THE STRONG WINDS...
  ESPECIALLY HIGH PROFILE VEHICLES. SOME SMALLER TREES AND LIMBS
  COULD BE BLOWN DOWN...WITH ISOLATED POWER OUTAGES POSSIBLE.
  FREEZING TEMPERATURES WILL IMPACT VEGETATION. ANY EXPOSED CROPS
  OR FLOWERS WILL BE KILLED.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WIND GUSTS OF MORE THAN 45 TO 55 MPH
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

VAZ009-080345-
/O.NEW.KRNK.FZ.W.0006.160408T0600Z-160408T1400Z/
SMYTH-
INCLUDING THE CITY OF...MARION
336 PM EDT THU APR 7 2016

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY.

* LOCATIONS...SMYTH COUNTY VIRGINIA.

* HAZARDS...FREEZING TEMPERATURES.

* TEMPERATURES...28 TO 32.

* TIMING...2AM UNTIL 10AM FRIDAY.

* IMPACTS...SENSITIVE VEGETATION WILL BE KILLED IF LEFT EXPOSED TO
  THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

VAZ015-080000-
/O.CON.KRNK.WI.Y.0009.000000T0000Z-160408T0000Z/
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
336 PM EDT THU APR 7 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* LOCATIONS...HIGH COUNTRY OF NORTH CAROLINA...AND THE GRAYSON 
  HIGHLANDS.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...UNTIL 8 PM TODAY.

* IMPACTS...DRIVING WILL BE IMPACTED BY THE STRONG WINDS... 
  ESPECIALLY HIGH PROFILE VEHICLES. SOME SMALLER TREES AND LIMBS 
  COULD BE BLOWN DOWN...WITH ISOLATED POWER OUTAGES POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WIND GUSTS OF MORE THAN 45 TO 55 MPH
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
845 
WWUS71 KRNK 072334 AAA
NPWRNK

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE BLACKSBURG VA
734 PM EDT THU APR 7 2016

...GUSTY WINDS TO SLOWLY SUBSIDE THIS EVENING...
...ANOTHER FREEZE TONIGHT FOR THE MOUNTAINS...

.STRONG GUSTY WINDS WILL CONTINUE TO DIMINISH ACROSS THE HIGH
COUNTRY OF NORTH CAROLINA INTO THE GRAYSON HIGHLANDS THROUGH THIS
EVENING. TEMPERATURES LATE TONIGHT ARE EXPECTED TO FALL AROUND
FREEZING.

NCZ001-018-080745-
/O.EXP.KRNK.WI.Y.0009.000000T0000Z-160408T0000Z/
/O.CON.KRNK.FZ.W.0006.160408T0600Z-160408T1400Z/
ASHE-WATAUGA-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE
734 PM EDT THU APR 7 2016

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...
...WIND ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

* TEMPERATURES...LOWS 27 TO 32.

* LOCATIONS...HIGH COUNTRY OF NORTH CAROLINA.

* HAZARDS...STRONG WEST WINDS WILL CONTINUE TO DIMINISH TO BELOW
  ADVISORY LEVELS THIS EVENING. FREEZING TEMPERATURES LATE TONIGHT.

* TIMING...FREEZING TEMPERATURES 2 AM UNTIL 10 AM.

* IMPACTS...FREEZING TEMPERATURES WILL IMPACT VEGETATION. ANY
  EXPOSED CROPS OR FLOWERS WILL BE KILLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

VAZ015-080045-
/O.EXP.KRNK.WI.Y.0009.000000T0000Z-160408T0000Z/
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
734 PM EDT THU APR 7 2016

...WIND ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

WEST WINDS WILL CONTINUE TO DIMINISH THIS EVENING. HOWEVER GUSTS
TO 40 MPH COULD STILL OCCUR OVER THE NEXT FEW HOURS BEFORE SPEEDS
SUBSIDE EVEN MORE BY MIDNIGHT. 

$$

VAZ009-080745-
/O.CON.KRNK.FZ.W.0006.160408T0600Z-160408T1400Z/
SMYTH-
INCLUDING THE CITY OF...MARION
734 PM EDT THU APR 7 2016

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* LOCATIONS...SMYTH COUNTY VIRGINIA.

* HAZARDS...FREEZING TEMPERATURES.

* TEMPERATURES...28 TO 32.

* TIMING...2AM UNTIL 10AM FRIDAY.

* IMPACTS...SENSITIVE VEGETATION WILL BE KILLED IF LEFT EXPOSED 
  TO THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 5:33 AM EDTSpecial Weather StatementRNKCaswell, Rockingham57 min
Apr 7, 3:36 PM EDTFreeze WarningRNKAshe, Watauga18 hr
Apr 7, 4:33 PM EDTSpecial Weather StatementRNKAmherst, City of Lynchburg42 min
Apr 7, 5:24 PM EDTSpecial Weather StatementRNKAppomattox, Bedford, Buckingham, Montgomery, Roanoke, City of Lynchburg and 2 more51 min
Apr 7, 6:28 PM EDTSpecial Weather StatementRNKFranklin32 min
Apr 7, 6:53 PM EDTSpecial Weather StatementRNKCity of Lynchburg37 min
Apr 7, 6:54 PM EDTSpecial Weather StatementRNKBotetourt36 min
Apr 7, 6:57 PM EDTSpecial Weather StatementRNKCharlotte33 min
Apr 7, 7:10 PM EDTSevere Thunderstorm WarningRNKAmherst, Appomattox, Buckingham, Campbell, City of Lynchburg17 min
Apr 7, 7:15 PM EDTSpecial Weather StatementRNKGiles30 min

Nearby

Wind Advisories in North Carolina, 2016Wind Advisories in Virginia, 2016Every wind advisory in 2016

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.