Alert archive / North Carolina / High Wind Watches in 2012

High Wind Watch 2, NWS Blacksburg, VA

October 27, 2012Alleghany County, Ashe County, Watauga County, North Carolina; Grayson County, Virginia

NWS Blacksburg, VA issued this high wind watch at Oct 27, 2012, 3:56 PM EDT for Alleghany County, Ashe County, Watauga County, North Carolina; Grayson County, Virginia. It took effect at Oct 29, 2012, 12:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 27, 2012, 3:56 PM EDT (19:56 UTC)
In effect from
Oct 29, 2012, 12:00 AM EDT
Expired
Oct 28, 2012, 3:35 AM EDT
In force
Issued by
NWS Blacksburg, VA

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

The radar

The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 20:00 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, 7.9 hours before the alert went out and 140 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 2012-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 2012-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
42 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
27 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.

271 
WWUS71 KRNK 271956
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
356 PM EDT SAT OCT 27 2012

...A COMPLEX LOW PRESSURE SYSTEM WILL BRING STRONG WINDS TO THE
AREA EARLY NEXT WEEK...

.THE REMNANTS OF HURRICANE SANDY AND AN UPPER LOW MOVING INTO THE
MID-ATLANTIC REGION FROM THE WEST WILL COMBINE TO FORM A LARGE
INTENSE CYCLONE. THIS SYSTEM WILL HAVE THE POTENTIAL TO BRING VERY
STRONG...GUSTY NORTHWEST WINDS TO THE AREA THROUGH THE MIDDLE OF
NEXT WEEK. WINDS OF THIS MAGNITUDE COULD BLOW DOWN TREES AND
POWER LINES. ACCUMULATING SNOW IS ALSO POSSIBLE MONDAY NIGHT AND
TUESDAY.

NCZ001-002-018-VAZ015-280400-
/O.NEW.KRNK.HW.A.0002.121029T0400Z-121031T0000Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY
356 PM EDT SAT OCT 27 2012

...HIGH WIND WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH TUESDAY
EVENING.

* LOCATIONS...NORTHWEST NORTH CAROLINA AND GRAYSON HIGHLANDS.

* HAZARDS...STRONG AND GUSTY WINDS.

* WINDS...25 TO 40 MPH WITH GUSTS UP TO 60 MPH.

* TIMING...BEGINNING LATE SUNDAY NIGHT AND CONTINUING INTO
  TUESDAY.

* IMPACTS...UPROOTED AND DOWNED TREES COULD LEAD TO WIDESPREAD
  POWER OUTAGES. HEAVY SNOW ON TREES COULD COMPOUND THE THREAT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$
RCS
2 follow-up statements
164 
WWUS71 KRNK 280159
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
959 PM EDT SAT OCT 27 2012

...A COMPLEX LOW PRESSURE SYSTEM WILL BRING STRONG WINDS TO THE
AREA EARLY NEXT WEEK...

.THE REMNANTS OF HURRICANE SANDY AND AN UPPER LOW MOVING INTO THE
MID-ATLANTIC REGION FROM THE WEST WILL COMBINE TO FORM A LARGE
INTENSE LOW PRESSURE SYSTEM. THIS SYSTEM WILL HAVE THE POTENTIAL
TO BRING VERY STRONG...GUSTY NORTHWEST WINDS TO THE AREA THROUGH
THE MIDDLE OF NEXT WEEK. WINDS OF THIS MAGNITUDE COULD BLOW DOWN
TREES AND POWER LINES. ACCUMULATING SNOW IS ALSO POSSIBLE MONDAY
NIGHT AND TUESDAY.

NCZ001-002-018-VAZ015-281100-
/O.CON.KRNK.HW.A.0002.121029T0400Z-121031T0000Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY
959 PM EDT SAT OCT 27 2012

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT
THROUGH TUESDAY EVENING...

* LOCATIONS...NORTHWEST NORTH CAROLINA AND GRAYSON HIGHLANDS.

* HAZARDS...STRONG AND GUSTY WINDS.

* WINDS...25 TO 40 MPH WITH GUSTS UP TO 60 MPH.

* TIMING...BEGINNING LATE SUNDAY NIGHT AND CONTINUING INTO 
  TUESDAY.

* IMPACTS...UPROOTED AND DOWNED TREES COULD LEAD TO WIDESPREAD 
  POWER OUTAGES. HEAVY SNOW ON TREES COULD COMPOUND THE THREAT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$
265 
WWUS71 KRNK 280735
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
335 AM EDT SUN OCT 28 2012

...A COMPLEX LOW PRESSURE SYSTEM WILL BRING STRONG WINDS TO THE
AREA EARLY NEXT WEEK...

.THE REMNANTS OF HURRICANE SANDY AND AN UPPER LOW MOVING INTO THE
MID-ATLANTIC REGION FROM THE WEST WILL COMBINE TO FORM A LARGE
INTENSE LOW PRESSURE SYSTEM. THIS SYSTEM WILL HAVE THE POTENTIAL
TO BRING VERY STRONG...GUSTY NORTHWEST WINDS TO THE AREA THROUGH
THE MIDDLE OF NEXT WEEK. WINDS OF THIS MAGNITUDE COULD BLOW DOWN
TREES AND POWER LINES. ACCUMULATING SNOW IS ALSO POSSIBLE IN THE 
WESTERN MOUNTAINS MONDAY NIGHT INTO TUESDAY NIGHT.

NCZ001-002-018-VAZ015-281545-
/O.UPG.KRNK.HW.A.0002.121029T0400Z-121031T0000Z/
/O.NEW.KRNK.HW.W.0004.121029T0400Z-121031T0400Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY
335 AM EDT SUN OCT 28 2012

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT
EDT TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT
EDT TUESDAY NIGHT. 

* LOCATIONS...NORTHWEST NORTH CAROLINA AND GRAYSON HIGHLANDS.

* HAZARDS...STRONG AND GUSTY WINDS.

* WINDS...NORTHWEST 25 TO 40 MPH WITH GUSTS UP TO 60 MPH.

* TIMING...BEGINNING LATE SUNDAY NIGHT AND CONTINUING INTO 
  TUESDAY NIGHT.

* IMPACTS...UPROOTED AND DOWNED TREES COULD LEAD TO WIDESPREAD 
  POWER OUTAGES. HEAVY SNOW ON TREES COULD COMPOUND THE THREAT.

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.

&&

$$

NCZ003-019-VAZ007-009>014-016>020-022>024-032>035-281545-
/O.NEW.KRNK.HW.W.0004.121029T0400Z-121031T0400Z/
SURRY-WILKES-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-
ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD-AMHERST-
INCLUDING THE CITIES OF...DOBSON...WILKESBORO...TAZEWELL...
MARION...BLAND...PEARISBURG...WYTHEVILLE...RADFORD...PULASKI...
BLACKSBURG...GALAX...FLOYD...NEW CASTLE...CLIFTON FORGE...
COVINGTON...HOT SPRINGS...ROANOKE...SALEM...FINCASTLE...
LEXINGTON...BUENA VISTA...STUART...ROCKY MOUNT...BEDFORD...
AMHERST
335 AM EDT SUN OCT 28 2012

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT
EDT TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT
EDT TUESDAY NIGHT.

* LOCATIONS...HIGHER ELAVTIONS OF SOUTHWEST VIRGINIA ESPECAILLY
  ALONG THE BLUE RIDGE MOUNTAINS.

* HAZARDS...STRONG AND GUSTY WINDS.

* WINDS...WEST 15 TO 35 MPH WITH GUSTS UP TO 60 MPH.

* TIMING...BEGINNING MONDAY AND CONTINUING INTO TUESDAY
  NIGHT.

* IMPACTS...UPROOTED AND DOWNED TREES COULD LEAD TO WIDESPREAD 
  POWER OUTAGES.

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.

&&

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 27, 4:20 PM EDTWinter Storm WatchRNKAshe, Watauga25 hr

Nearby

High Wind Watches in North Carolina, 2012High Wind Watches in Virginia, 2012Every high wind watch 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.