Alert archive / Virginia / Wind Advisories in 2011

Wind Advisory 6, NWS Blacksburg, VA

February 5, 2011Alleghany County, Bath County, City of Covington, Virginia

NWS Blacksburg, VA issued this wind advisory at Feb 5, 2011, 2:56 PM EST for Alleghany County, Bath County, City of Covington, Virginia. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Feb 5, 2011, 2:56 PM EST (19:56 UTC)
Expired: Feb 6, 2011, 12:00 AM EST
In force: 9 hr
Issued by: NWS Blacksburg, VA

Counties Alleghany County, VA, Bath County, VA, City of Covington, VA

The radar

The Roanoke radar (KFCX), 100 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

Roanoke, VA (KRNK), launched 12:00Z, 7.9 hours before the alert went out and 84 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 472 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: 405 m²/s²
0-3 km storm-relative helicity: 290 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.

097 
WWUS71 KRNK 051956
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
256 PM EST SAT FEB 5 2011

...VERY GUSTY WINDS EXPECTED LATE THIS AFTERNOON AND EVENING...

.AN AREA OF LOW PRESSURE WILL TRACK THROUGH THE OHIO VALLEY THIS
EVENING. PRESSURE RISES ON THE BACK SIDE OF THE SYSTEM WILL ALLOW
WINDS TO INCREASE WITH GUSTS APPROACHING 50 MPH AT THE HIGHEST
ELEVATIONS. 

VAZ019-020-WVZ045-060400-
/O.NEW.KRNK.WI.Y.0006.110205T2000Z-110206T0500Z/
ALLEGHANY VA-BATH-GREENBRIER-
INCLUDING THE CITIES OF...CLIFTON FORGE...COVINGTON...
HOT SPRINGS...LEWISBURG...QUINWOOD...DUO...RAINELLE
256 PM EST SAT FEB 5 2011

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

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

* WINDS...SUSTAINED 20 TO 30 WITH GUSTS 46 TO 50 MPH AT THE
  HIGHEST ELEVATIONS.

* TIMING...LATE THIS AFTERNOON AND EVENING...FOCUS AFTER 600 PM
  EST.

* IMPACTS...MOTORISTS...ESPECIALLY THOSE IN HIGH PROFILE VEHICLES
  ON NORTH TO SOUTH ORIENTED ROADS...SHOULD BE ALERT FOR STRONG
  CROSS WIND CONDITIONS. THE WINDS MAY DOWN TREE LIMBS...SOME OF
  WHICH MAY FALL ON POWER LINES.

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.

&&

$$

DS

1 follow-up statement

918 
WWUS71 KRNK 060503
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
1203 AM EST SUN FEB 6 2011


VAZ019-020-WVZ045-060615-
/O.EXP.KRNK.WI.Y.0006.000000T0000Z-110206T0500Z/
ALLEGHANY VA-BATH-GREENBRIER-
INCLUDING THE CITIES OF...CLIFTON FORGE...COVINGTON...
HOT SPRINGS...LEWISBURG...QUINWOOD...DUO...RAINELLE
1203 AM EST SUN FEB 6 2011

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY IS NO LONGER IN EFFECT. 

* WINDS...10 TO 20 MPH WITH OCCASIONAL GUSTS TO 30 MPH WILL
  CONTINUE TO GRADUALLY DIMINISH THROUGH THE OVERNIGHT HOURS.

$$

RCS

Nearby

Wind Advisories in Virginia, 2011 Wind Advisories in West Virginia, 2011 Every wind advisory in 2011

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.