Alert archive / North Carolina / Wind Advisories in 2009

Wind Advisory 2, NWS Blacksburg, VA

January 14, 2009Alleghany County, Ashe County, Watauga County, North Carolina; Grayson County, Virginia

NWS Blacksburg, VA issued this wind advisory at Jan 14, 2009, 5:34 PM EST for Alleghany County, Ashe County, Watauga County, North Carolina; Grayson County, Virginia. It took effect at Jan 14, 2009, 9:00 PM EST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jan 14, 2009, 5:34 PM EST (22:34 UTC)
In effect from
Jan 14, 2009, 9:00 PM EST
Expired
Jan 15, 2009, 9:57 AM EST
In force
13 hr
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 22:40 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, 10.6 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 2009-01-14Temperature 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, Greensboro/Hi Pt, NC at 12:00Z on 2009-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.1939587897117136Sfc1 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
1543 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
-7 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.

000 
WWUS71 KRNK 142234
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
534 PM EST WED JAN 14 2009

...STRONG NORTHWEST WINDS OVERNIGHT INTO EARLY THURSDAY...

.A STRONG COLD FRONT WILL SLIDE THROUGH THE REGION LATER THIS
EVENING. ARCTIC AIR PRESSURE STARTING TO BUILD IN BEHIND THE FRONT
WILL RESULT IN GUSTY NORTHWEST WINDS ACROSS THE HIGHER ELEVATIONS
LATE TONIGHT.

NCZ001-002-018-VAZ015-150645-
/O.NEW.KRNK.WI.Y.0002.090115T0200Z-090115T1700Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE
534 PM EST WED JAN 14 2009

...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 12 PM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 12 PM EST
THURSDAY. 

NORTHWEST WINDS WILL INCREASE TO BETWEEN 15 AND 30 MPH LATER
TONIGHT AS A COLD FRONT WORKS THROUGH FROM THE NORTHWEST. WIND
GUSTS TO 50 MPH CAN BE EXPECTED ACROSS THE HIGHER ELEVATIONS.

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
000 
WWUS71 KRNK 150253
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
953 PM EST WED JAN 14 2009

...STRONG NORTHWEST WINDS OVERNIGHT INTO EARLY THURSDAY...

.A STRONG COLD FRONT WILL SLIDE THROUGH THE REGION OVERNIGHT.
ARCTIC AIR PRESSURE STARTING TO BUILD IN BEHIND THE FRONT WILL
RESULT IN GUSTY NORTHWEST WINDS ACROSS THE HIGHER ELEVATIONS LATE
TONIGHT INTO THURSDAY MORNING.

NCZ001-002-018-VAZ015-151100-
/O.CON.KRNK.WI.Y.0002.000000T0000Z-090115T1700Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE
953 PM EST WED JAN 14 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST THURSDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST THURSDAY. 

NORTHWEST WINDS WILL INCREASE TO BETWEEN 15 AND 30 MPH LATER
TONIGHT AS A COLD FRONT SLIDES THROUGH FROM THE WEST. WIND GUSTS
TO 50 MPH CAN BE EXPECTED ACROSS THE HIGHER ELEVATIONS.

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.

$$
000 
WWUS71 KRNK 150923
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
423 AM EST THU JAN 15 2009

...STRONG NORTHWEST WINDS THIS MORNING...

.ARCTIC AIR SURGING INTO THE REGION BEHIND A STRONG COLD FRONT
WILL RESULT IN GUSTY NORTHWEST WINDS ACROSS THE HIGHER ELEVATIONS
THIS MORNING.

NCZ001-002-018-VAZ015-151700-
/O.CON.KRNK.WI.Y.0002.000000T0000Z-090115T1700Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE
423 AM EST THU JAN 15 2009

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

A WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY. 

WINDS WILL BE 15 TO 30 MPH FROM THE NORTHWEST THIS MORNING. WIND
GUSTS UP TO 50 MPH CAN BE EXPECTED ACROSS THE HIGHER ELEVATIONS.

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.

$$

AMS
000 
WWUS71 KRNK 151457
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
957 AM EST THU JAN 15 2009

...WIND ADVISORY CANCELED...


NCZ001-002-018-VAZ015-151600-
/O.CAN.KRNK.WI.Y.0002.000000T0000Z-090115T1700Z/
ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-
INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE...
INDEPENDENCE
957 AM EST THU JAN 15 2009

...WIND ADVISORY IS CANCELLED...

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

WINDS ACROSS THE MOUNTAINS OF NORTHWEST NORTH CAROLINA AND
SOUTHWEST VIRGINIA HAVE WEAKENED THIS MORNING WELL BELOW ADVISORY
LEVELS. EXPECT A FEW GUSTS OF 30 TO 35 MPH THIS AFTERNOON HOWEVER
WITH VERY COLD WIND CHILLS. 

$$

Nearby

Wind Advisories in North Carolina, 2009Wind Advisories in Virginia, 2009Every wind advisory in 2009

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.