Alert archive / Virginia / Wind Advisories in 2012

Wind Advisory 5, NWS Blacksburg, VA

January 23, 2012Mercer County, Summers County, West Virginia; 5 counties in Virginia; Ashe County, Watauga County, North Carolina

NWS Blacksburg, VA issued this wind advisory at Jan 23, 2012, 8:57 AM EST for Mercer County, Summers County, West Virginia; 5 counties in Virginia; Ashe County, Watauga County, North Carolina. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jan 23, 2012, 8:57 AM EST (13:57 UTC)
Expired
Jan 23, 2012, 6:00 PM EST
In force
9 hr
Issued by
NWS Blacksburg, VA

Counties Ashe County, NC, Watauga County, NC, Bland County, VA, Grayson County, VA, Smyth County, VA, Tazewell County, VA, Wythe County, VA, Mercer County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 92 km from the middle of the area, began a volume at 14:14 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, 2.0 hours before the alert went out and 157 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 2012-01-23Temperature 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 12:00Z on 2012-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 328 square meters per square second.193958Sfc1 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
388 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
328 m²/s²
0-3 km storm-relative helicity
422 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.

096 
WWUS71 KRNK 231357
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
857 AM EST MON JAN 23 2012

...STRONG SOUTHERLY WINDS ON THE RIDGES THROUGH LATER TODAY...

.A COLD FRONT WILL APPROACH FROM THE WEST TODAY AND PASS ACROSS
THE APPALACHIANS THIS EVENING. STRONG SOUTHERLY WINDS AHEAD OF THE
FRONT WILL OCCUR ESPECIALLY ALONG THE HIGHER WESTERN RIDGES
THROUGH LATE THIS AFTERNOON.

VAZ007-009-010-WVZ042-043-045-232200-
/O.NEW.KRNK.WI.Y.0005.120123T1357Z-120123T2300Z/
TAZEWELL-SMYTH-BLAND-MERCER-SUMMERS-GREENBRIER-
INCLUDING THE CITIES OF...TAZEWELL...MARION...BLAND...BLUEFIELD...
FLAT TOP...HINTON...HIX...LEWISBURG...QUINWOOD...DUO...RAINELLE
857 AM EST MON JAN 23 2012

...WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. 

* LOCATIONS...HIGHER WESTERN RIDGES AND ACROSS THE VALLEYS WHERE
  WINDS MAY CHANNEL.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...SOUTH 15 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...TREES AND POWER LINES COULD BE DOWNED.

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.

&&

$$
3 follow-up statements
997 
WWUS71 KRNK 231843
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
143 PM EST MON JAN 23 2012

...STRONG SOUTHERLY WINDS ON THE RIDGES THROUGH LATE THIS
AFTERNOON...

.A COLD FRONT WILL PASS ACROSS THE APPALACHIANS THIS EVENING.
STRONG SOUTHERLY WINDS AHEAD OF THE FRONT WILL OCCUR ESPECIALLY
ALONG THE HIGHER WESTERN RIDGES THROUGH LATE THIS AFTERNOON.

VAZ007-009-010-WVZ042-043-045-232300-
/O.CON.KRNK.WI.Y.0005.000000T0000Z-120123T2300Z/
TAZEWELL-SMYTH-BLAND-MERCER-SUMMERS-GREENBRIER-
INCLUDING THE CITIES OF...TAZEWELL...MARION...BLAND...BLUEFIELD...
FLAT TOP...HINTON...HIX...LEWISBURG...QUINWOOD...DUO...RAINELLE
143 PM EST MON JAN 23 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING...

* LOCATIONS...HIGHER WESTERN RIDGES AND ACROSS THE VALLEYS WHERE 
  WINDS MAY CHANNEL. 

* HAZARDS...STRONG WIND GUSTS.

* WINDS...SOUTH 15 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...TREES AND POWER LINES COULD BE DOWNED.

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.

&&

$$
473 
WWUS71 KRNK 231914 AAA
NPWRNK

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE BLACKSBURG VA
214 PM EST MON JAN 23 2012

...STRONG SOUTHERLY WINDS ON THE RIDGES THROUGH LATE THIS
AFTERNOON...

.A COLD FRONT WILL PASS ACROSS THE APPALACHIANS THIS EVENING.
STRONG SOUTHERLY WINDS AHEAD OF THE FRONT WILL OCCUR ESPECIALLY
ALONG THE HIGHER WESTERN RIDGES THROUGH LATE THIS AFTERNOON.

NCZ001-018-VAZ012-015-232300-
/O.EXA.KRNK.WI.Y.0005.000000T0000Z-120123T2300Z/
ASHE-WATAUGA-WYTHE-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...WYTHEVILLE...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY
214 PM EST MON JAN 23 2012

...WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. 

* LOCATIONS...NORTHWEST NORTH CAROLINA MOUNTAINS AS WELL AS THE
  SOUTHWEST MOUNTAINS OF VIRGINIA.

* HAZARDS...STRONG WIND GUSTS.

* WINDS...SOUTH 15 TO 30 MPH WITH GUSTS TO 50 MPH.

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...TREES AND POWER LINES COULD BE DOWNED.

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.

&&

$$

VAZ007-009-010-WVZ042-043-045-232300-
/O.CON.KRNK.WI.Y.0005.000000T0000Z-120123T2300Z/
TAZEWELL-SMYTH-BLAND-MERCER-SUMMERS-GREENBRIER-
INCLUDING THE CITIES OF...TAZEWELL...MARION...BLAND...BLUEFIELD...
FLAT TOP...HINTON...HIX...LEWISBURG...QUINWOOD...DUO...RAINELLE
214 PM EST MON JAN 23 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING...

* LOCATIONS...HIGHER WESTERN RIDGES AND ACROSS THE VALLEYS WHERE 
  WINDS MAY CHANNEL. 

* HAZARDS...STRONG WIND GUSTS.

* WINDS...SOUTH 15 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...TREES AND POWER LINES COULD BE DOWNED.

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.

&&

$$
782 
WWUS71 KRNK 232302
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
602 PM EST MON JAN 23 2012

...WINDS DIMINISH THIS EVENING...

NCZ001-018-VAZ007-009-010-012-015-WVZ042-043-045-240015-
/O.EXP.KRNK.WI.Y.0005.000000T0000Z-120123T2300Z/
ASHE-WATAUGA-TAZEWELL-SMYTH-BLAND-WYTHE-GRAYSON-MERCER-SUMMERS-
GREENBRIER-
INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...TAZEWELL...
MARION...BLAND...WYTHEVILLE...INDEPENDENCE...WHITETOP...
TROUTDALE...VOLNEY...BLUEFIELD...FLAT TOP...HINTON...HIX...
LEWISBURG...QUINWOOD...DUO...RAINELLE
602 PM EST MON JAN 23 2012

...WIND ADVISORY HAS EXPIRED...

WINDS HAVE DIMINISHED ACROSS SOUTHEAST WEST VIRGINIA AND SOUTHWEST
VIRGINIA. ANY ADDITIONAL WIND GUSTS ARE EXPECTED TO REMAIN LOWER
THAN 30 MPH. 

$$

Nearby

Wind Advisories in Virginia, 2012Wind Advisories in West Virginia, 2012Wind Advisories in North Carolina, 2012Every wind advisory in 2012

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.