Alert archive / Virginia / Tornado Warnings in 2009

Tornado Warning 13, NWS Blacksburg, VA

June 19, 2009Buckingham County, Virginia

NWS Blacksburg, VA issued this tornado warning at Jun 19, 2009, 9:09 PM EDT for Buckingham County, Virginia. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 19, 2009, 9:09 PM EDT (01:09 UTC)
Expired
Jun 19, 2009, 9:45 PM EDT
In force
36 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon

County Buckingham County, VA

The radar

The Norfolk radar (KAKQ), 137 km from the middle of the area, began a volume at 01:11 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 00:00Z, 1.2 hours before the alert went out and 120 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, Roanoke, VA at 00:00Z on 2009-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1181 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, Roanoke, VA at 00:00Z on 2009-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 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
1181 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1360 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS51 KRNK 200109
TORRNK
VAC029-200145-
/O.NEW.KRNK.TO.W.0013.090620T0109Z-090620T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
909 PM EDT FRI JUN 19 2009

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BUCKINGHAM COUNTY IN CENTRAL VIRGINIA

* UNTIL 945 PM EDT.

* AT 907 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NEW
  CANTON...OR 6 MILES SOUTHWEST OF FORK UNION...MOVING SOUTH AT 20
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW CANTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

WHEN IT IS SAFE TO DO SO...PLEASE RELAY YOUR SEVERE WEATHER REPORTS
TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE AT...1...8 6
6...2 1 5...4 3 2 4.

&&

LAT...LON 3767 7825 3763 7825 3755 7831 3772 7836
      3773 7835 3772 7831 3772 7828 3769 7824
      3768 7824
TIME...MOT...LOC 0109Z 346DEG 19KT 3767 7830

$$

WP
2 follow-up statements
000 
WWUS51 KRNK 200119
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
919 PM EDT FRI JUN 19 2009

VAC029-200145-
/O.CON.KRNK.TO.W.0013.000000T0000Z-090620T0145Z/
BUCKINGHAM VA-
919 PM EDT FRI JUN 19 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR EASTERN
BUCKINGHAM COUNTY...

AT 916 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR NEW CANTON...OR 9
MILES SOUTHWEST OF FORK UNION...MOVING SOUTH AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  NEW CANTON...
  LAWFORD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN
DO SO SAFELY.

&&

LAT...LON 3767 7825 3763 7825 3755 7831 3770 7835
      3771 7831 3771 7828 3769 7824 3768 7824
TIME...MOT...LOC 0118Z 359DEG 17KT 3763 7833

$$

WP
000 
WWUS51 KRNK 200138
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
938 PM EDT FRI JUN 19 2009

VAC029-200147-
/O.EXP.KRNK.TO.W.0013.000000T0000Z-090620T0145Z/
BUCKINGHAM VA-
938 PM EDT FRI JUN 19 2009

...THE TORNADO WARNING FOR NORTHEASTERN BUCKINGHAM COUNTY EXPIRES AT 
945 PM EDT...

AT 936 PM...THE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING AS 
EXITING THE COUNTY NEAR LAWFORD. THEREFORE...THE WARNING WILL BE 
ALLOWED TO EXPIRE AT 945 PM.

IF YOU HAD HAIL...HIGH WINDS...OR WIND DAMAGE...PLEASE CONTACT THE 
NATIONAL WEATHER SERVICE IN BLACKSBURG AT...TOLL FREE...1...8 6 
6...2 1 5...4 3 2 4.

LAT...LON 3767 7825 3763 7825 3755 7831 3770 7835
      3771 7831 3771 7828 3769 7824 3768 7824
TIME...MOT...LOC 0137Z 359DEG 17KT 3754 7833

$$

WP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:49 PM EDTSpecial Weather StatementRNKCumberland41 min
Jun 20, 4:59 PM EDTSpecial Weather StatementRNKSmyth31 min

Nearby

Tornado Warnings in Virginia, 2009Every tornado warning in 2009Tornadoes 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.