Alert archive / Virginia / Wind Advisories in 2013

Wind Advisory 2, NWS Blacksburg, VA

January 24, 20134 counties in Virginia; Alleghany County, Surry County, Wilkes County, North Carolina

NWS Blacksburg, VA issued this wind advisory at Jan 24, 2013, 5:36 AM EST for 4 counties in Virginia; Alleghany County, Surry County, Wilkes County, North Carolina. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jan 24, 2013, 5:36 AM EST (10:36 UTC)
Expired
Jan 24, 2013, 11:23 AM EST
In force
6 hr
Issued by
NWS Blacksburg, VA

Counties Alleghany County, NC, Surry County, NC, Wilkes County, NC, Carroll County, VA, City of Galax, VA, Floyd County, VA, Patrick County, VA

The radar

The Roanoke radar (KFCX), 65 km from the middle of the area, began a volume at 10:33 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 00:00Z, 10.6 hours before the alert went out and 95 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 00:00Z on 2013-01-24Temperature 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, Greensboro/Hi Pt, NC at 00:00Z on 2013-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
1950 m above ground
0-6 km bulk shear
96 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
375 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.

882 
WWUS71 KRNK 241036
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
536 AM EST THU JAN 24 2013

...VERY STRONG NORTHWEST WINDS THIS MORNING...

.LOW PRESSURE WILL PUSH A COLD FRONT THROUGH THE REGION THIS
MORNING. THIS WILL RESULT IN GUSTY NORTHWEST WINDS AND WILL BRING
COLDER AIR BACK INTO THE AREA.

NCZ001-018-VAZ015-241700-
/O.UPG.KRNK.WI.Y.0001.000000T0000Z-130124T1700Z/
/O.NEW.KRNK.HW.W.0001.130124T1036Z-130124T1700Z/
ASHE-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...INDEPENDENCE...
WHITETOP...TROUTDALE...VOLNEY
536 AM EST THU JAN 24 2013

...HIGH WIND WARNING IN EFFECT UNTIL NOON EST TODAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL NOON EST TODAY. THE WIND
ADVISORY IS NO LONGER IN EFFECT.

* WINDS...NORTHWEST 20 TO 35 MPH WITH GUSTS UP TO 60 MPH. 

* LOCATIONS...HIGH COUNTRY OF NORTHWEST NORTH CAROLINA AS WELL AS
  GRAYSON COUNTY VIRGINIA. THE STRONGEST WINDS WILL BE AT THE
  HIGHEST ELEVATIONS. 

* HAZARDS...DOWNED TREES AND POWER LINES. 

* TIMING...UNTIL NOON.

* IMPACTS...EXERCISE CAUTION OPERATING HIGH PROFILE VEHICLES. BE
  ALERT FOR DOWNED TREES AND POWER LINES THAT HAVE FALLEN ACROSS
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF
58 MPH ARE LIKELY TO CAUSE SPORADIC POWER OUTAGES...FALLEN
TREES...MINOR PROPERTY DAMAGE...AND DANGEROUS DRIVING CONDITIONS
FOR HIGH PROFILE VEHICLES. RESIDENTS SHOULD MOVE UNFASTENED
ITEMS...SUCH AS GARBAGE CANS AND DECK FURNITURE...INDOORS.

&&

$$

NCZ002-003-019-VAZ016-017-032-241700-
/O.NEW.KRNK.WI.Y.0002.130124T1036Z-130124T1700Z/
ALLEGHANY NC-SURRY-WILKES-CARROLL-FLOYD-PATRICK-
INCLUDING THE CITIES OF...SPARTA...DOBSON...WILKESBORO...GALAX...
FLOYD...STUART
536 AM EST THU JAN 24 2013

...WIND ADVISORY IN EFFECT UNTIL NOON EST TODAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON EST TODAY.

* LOCATIONS...ALONG THE BLUE RIDGE SOUTH OF ROANOKE AND INTO
  NORTHWEST NORTH CAROLINA.

* HAZARDS...DOWNED TREES LIMBS AND POSSIBLE POWER OUTAGES. 

* WINDS...NORTHWEST 15 TO 30 MPH WITH GUSTS UP TO 50 MPH. THE
  STRONGEST WINDS WILL BE AT THE HIGHER ELEVATIONS. 

* TIMING...UNTIL NOON. 

* IMPACTS...EXERCISE CAUTION OPERATING HIGH PROFILE VEHICLES. BE
  ALERT FOR DEBRIS IN THE ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
1 follow-up statement
573 
WWUS71 KRNK 241623
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
1123 AM EST THU JAN 24 2013


NCZ001-018-VAZ015-241730-
/O.CAN.KRNK.HW.W.0001.000000T0000Z-130124T1700Z/
ASHE-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...INDEPENDENCE...
WHITETOP...TROUTDALE...VOLNEY
1123 AM EST THU JAN 24 2013

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS CANCELLED THE HIGH
WIND WARNING.

WINDS HAVE SUBSIDED ACROSS THE MOUNTAINS. GUSTS THROUGH THE
AFTERNOON WILL STILL APPROACH 40 MPH OVER THE HIGHER
TERRAIN...BUT THE STRONGER WINDS OVER 50 MPH HAVE ENDED.

$$

NCZ002-003-019-VAZ016-017-032-241730-
/O.CAN.KRNK.WI.Y.0002.000000T0000Z-130124T1700Z/
ALLEGHANY NC-SURRY-WILKES-CARROLL-FLOYD-PATRICK-
INCLUDING THE CITIES OF...SPARTA...DOBSON...WILKESBORO...GALAX...
FLOYD...STUART
1123 AM EST THU JAN 24 2013

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS CANCELLED THE WIND
ADVISORY.

WINDS WILL CONTINUE TO WEAKEN THROUGH THE AFTERNOON. OCCASIONAL
GUSTS TO 35 MPH WILL STILL OCCUR...BUT THE STRONGER GUSTS OVER 45
MPH HAVE ENDED.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 5:36 AM ESTHigh Wind WarningRNKGrayson6 hr
Jan 24, 3:52 PM ESTWinter Weather AdvisoryRNKAlleghany, Amherst, Appomattox, Bath, Bedford, Bland and 30 more41 hr

Nearby

Wind Advisories in Virginia, 2013Wind Advisories in North Carolina, 2013Every wind advisory in 2013

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.