Alert archive / Virginia / Wind Advisories in 2011

Wind Advisory 14, NWS Blacksburg, VA

March 7, 2011Carroll County, City of Galax, Virginia

NWS Blacksburg, VA issued this wind advisory at Mar 7, 2011, 3:36 AM EST for Carroll County, City of Galax, Virginia. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Mar 7, 2011, 3:36 AM EST (08:36 UTC)
Expired: Mar 7, 2011, 7:43 AM EST
In force: 4 hr
Issued by: NWS Blacksburg, VA

Counties Carroll County, VA, City of Galax, VA

The radar

The Roanoke radar (KFCX), 61 km from the middle of the area, began a volume at 08:39 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, 8.6 hours before the alert went out and 108 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: 898 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: -48 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.

929 
WWUS71 KRNK 070836
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
336 AM EST MON MAR 7 2011

...STRONG WINDS ALONG INTERSTATE 77 IN CARROLL COUNTY...

.STRONG NORTH WINDS ARE OCCURRING IN THE WAKE OF AN AREA OF LOW
PRESSURE MOVING UP THE EAST COAST.

VAZ016-071300-
/O.NEW.KRNK.WI.Y.0014.110307T0836Z-110307T1300Z/
CARROLL-
INCLUDING THE CITY OF...GALAX
336 AM EST MON MAR 7 2011

...WIND ADVISORY IN EFFECT UNTIL 8 AM EST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM EST THIS MORNING. 

* LOCATIONS...INTERSTATE 77 NEAR FANCY GAP...ESPECIALLY BETWEEN
  MILE MARKERS 1 AND 3.

* HAZARDS...STRONG CROSS BARRIER WINDS ALONG THE INTERSTATE.

* WINDS...NORTHWEST 20 TO 35 MPH WITH GUSTS UP TO 50 MPH.

* TIMING...THROUGH SUNRISE THIS MORNING.

* IMPACTS...WIND IS CHANNELING THROUGH A GAP IN THE MOUNTAIN
  ALONG THE INTERSTATE...AND WILL RESULT IN A SUDDEN STRONG SURGE
  OF CROSS WIND WHICH MAY TOPPLE LIGHTLY LOADED HIGH PROFILE
  VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED...OR GUSTS
OF 50 MPH. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY
FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

11

1 follow-up statement

676 
WWUS71 KRNK 071243
NPWRNK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BLACKSBURG VA
743 AM EST MON MAR 7 2011


VAZ016-071345-
/O.CAN.KRNK.WI.Y.0014.000000T0000Z-110307T1300Z/
CARROLL-
INCLUDING THE CITY OF...GALAX
743 AM EST MON MAR 7 2011

...WIND ADVISORY IS CANCELLED...

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

WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 8:41 PM EST	River Flood Warning	RNK	Montgomery, Pulaski	11 hr
Mar 6, 8:57 PM EST	River Flood Warning	RNK	Halifax	48 hr
Mar 6, 9:02 PM EST	River Flood Warning	RNK	Charlotte, Halifax	11 hr
Mar 6, 10:09 PM EST	Areal Flood Warning	RNK	Pulaski	9 hr
Mar 6, 11:02 PM EST	River Flood Warning	RNK	Campbell, Pittsylvania	9 hr
Mar 6, 11:02 PM EST	River Flood Warning	RNK	Campbell, Charlotte, Halifax	9 hr
Mar 7, 4:17 AM EST	Areal Flood Warning	RNK	Alleghany, Botetourt	6 hr
Mar 7, 10:29 AM EST	River Flood Warning	RNK	Charlotte, Halifax	22 hr

Nearby

Wind Advisories in 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.