Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 17, NWS Raleigh, NC

April 16, 2011Granville County, Vance County, North Carolina

NWS Raleigh, NC issued this tornado warning at Apr 16, 2011, 3:25 PM EDT for Granville County, Vance County, North Carolina. It was in force for 50 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 16, 2011, 3:25 PM EDT (19:25 UTC)
Expired: Apr 16, 2011, 4:15 PM EDT
In force: 50 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Granville County, NC, Vance County, NC

The radar

The Raleigh/Durham radar (KRAX), 78 km from the middle of the area, began a volume at 19:26 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.

What was reported inside it

Time	Report	Where	Remark
Apr 16, 3:30 PM EDT	HAIL 1.75	2 Wsw Henderson, NC	1.75 INCH HAIL NEAR HENDERSON
Apr 16, 3:50 PM EDT	HAIL 1.75	Henderson, NC	TIME ESTIMATED.
Apr 16, 4:00 PM EDT	HAIL 0.88	3 N Henderson, NC	NICKEL HAIL IN THE SPRING VALLEY AREA... LASTED FOR 2 MINUTES
Apr 16, 4:00 PM EDT	HAIL 1.75	Henderson, NC	GOLF BALL SIZE HAIL REPORTED IN HENDERSON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 16, 12:02 PM EDT	Tornado Watch PDS	SPC	11 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 7.4 hours before the alert went out and 128 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 480 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 747 m²/s²
0-3 km storm-relative helicity: 975 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.

281 
WFUS52 KRAH 161925
TORRAH
NCC077-181-162015-
/O.NEW.KRAH.TO.W.0017.110416T1925Z-110416T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
325 PM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  VANCE COUNTY IN CENTRAL NORTH CAROLINA
  CENTRAL GRANVILLE COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 415 PM EDT

* AT 322 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER STEM...OR 6 MILES NORTHWEST OF CREEDMOOR...MOVING
  NORTHEAST AT 55 MPH. DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 58
  MPH ARE ALSO LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  BEREA...
  OXFORD...
  DABNEY...
  HENDERSON...
  MIDDLEBURG...
  BULLOCKSVILLE...KERR LAKE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. IF NO SHELTER IS
AVAILABLE LIE DOWN IN A LOW LYING AREA. PROTECT YOURSELF FROM FLYING
DEBRIS.

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING...1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW
ENFORCEMENT AGENCY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3635 7829 3610 7872 3619 7881 3628 7881
      3654 7843 3655 7842 3655 7833
TIME...MOT...LOC 1925Z 231DEG 46KT 3623 7870

$$

VINCENT

1 follow-up statement

746 
WWUS52 KRAH 161934
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
334 PM EDT SAT APR 16 2011

NCC077-181-162015-
/O.CON.KRAH.TO.W.0017.000000T0000Z-110416T2015Z/
VANCE NC-GRANVILLE NC-
334 PM EDT SAT APR 16 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR GRANVILLE
AND VANCE COUNTIES...

AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR OXFORD...MOVING
NORTHEAST AT 55 MPH.

HAZARDS IN THE WARNING INCLUDE...
A TORNADO.
OTHER DAMAGING WINDS IN EXCESS OF 58 MPH.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... DABNEY...SOUTH
HENDERSON...HENDERSON...MIDDLEBURG...BULLOCKSVILLE AND KERR LAKE.

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. IF NO SHELTER IS
AVAILABLE LIE DOWN IN A LOW LYING AREA. PROTECT YOURSELF FROM FLYING
DEBRIS.

WHEN IT IS SAFE TO DO SO...PLEASE CALL IN YOUR REPORTS OF PENNY OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 7 7...6 3 3...6 7 7 2.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3642 7830 3642 7831 3635 7829 3617 7861
      3632 7875 3655 7842 3655 7833
TIME...MOT...LOC 1934Z 227DEG 48KT 3632 7859

$$

VINCENT

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 16, 8:44 AM EDT	Special Weather Statement	RAH	Anson, Davidson, Guilford, Montgomery, Moore, Randolph and 1 more	61 min
Apr 16, 12:17 PM EDT	Special Weather Statement	RAH	Davidson, Forsyth	43 min
Apr 16, 12:26 PM EDT	Severe Thunderstorm Warning	RAH	Davidson	64 min
Apr 16, 12:43 PM EDT	Tornado Warning	RAH	Davidson	47 min
Apr 16, 12:45 PM EDT	Special Weather Statement	RAH	Harnett, Hoke, Lee, Moore, Richmond, Scotland	60 min
Apr 16, 1:03 PM EDT	Tornado Warning	RAH	Anson, Stanly	27 min
Apr 16, 1:07 PM EDT	Severe Thunderstorm Warning	RAH	Guilford, Randolph	53 min
Apr 16, 1:08 PM EDT	Tornado Warning	RAH	Hoke, Scotland	37 min
Apr 16, 1:22 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Stanly	53 min
Apr 16, 1:26 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Lee, Moore	28 min
Apr 16, 1:39 PM EDT	Tornado Warning	RAH	Randolph	21 min
Apr 16, 1:42 PM EDT	Areal Flood Advisory	RAH	Guilford, Randolph	3 hr
Apr 16, 1:43 PM EDT	Severe Thunderstorm Warning	RAH	Alamance	62 min
Apr 16, 1:46 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Moore, Richmond	59 min
Apr 16, 2:02 PM EDT	Tornado Warning	RAH	Alamance	18 min
Apr 16, 2:05 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Guilford, Randolph	55 min
Apr 16, 2:14 PM EDT	Areal Flood Advisory	RAH	Alamance	3 hr
Apr 16, 2:16 PM EDT	Tornado Warning	RAH	Alamance	29 min
Apr 16, 2:17 PM EDT	Severe Thunderstorm Warning	RAH	Orange, Person	58 min
Apr 16, 2:25 PM EDT	Tornado Warning	RAH	Orange	35 min
Apr 16, 2:34 PM EDT	Tornado Warning	RAH	Person	22 min
Apr 16, 2:36 PM EDT	Tornado Warning	RAH	Person	24 min
Apr 16, 2:43 PM EDT	Tornado Warning	RAH	Chatham, Lee, Moore	47 min
Apr 16, 2:44 PM EDT	Areal Flood Advisory	RAH	Durham, Granville, Orange, Person	2 hr
Apr 16, 2:49 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Richmond, Scotland	41 min
Apr 16, 3:02 PM EDT	Tornado Warning	RAH	Hoke, Scotland	43 min
Apr 16, 3:05 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Person, Wake	40 min
Apr 16, 3:06 PM EDT	Flash Flood Warning	RAH	Guilford	110 min
Apr 16, 3:12 PM EDT	Tornado Warning Emergency	RAH	Chatham, Durham, Harnett, Lee, Wake	48 min
Apr 16, 3:26 PM EDT	Tornado Warning Emergency	RAH	Cumberland, Hoke	49 min
Apr 16, 3:38 PM EDT	Areal Flood Advisory	RAH	Cumberland, Edgecombe, Franklin, Granville, Halifax, Harnett and 11 more	3 hr
Apr 16, 3:38 PM EDT	Tornado Warning Emergency	RAH	Franklin, Nash, Wake	37 min
Apr 16, 3:42 PM EDT	Tornado Warning	RAH	Cumberland, Sampson	48 min
Apr 16, 3:53 PM EDT	Tornado Warning Emergency	RAH	Cumberland, Harnett, Sampson	37 min
Apr 16, 3:57 PM EDT	Tornado Warning	RAH	Franklin, Granville, Vance, Warren	48 min
Apr 16, 3:59 PM EDT	Tornado Warning Emergency	RAH	Franklin, Granville, Johnston, Nash, Vance, Wake	46 min
Apr 16, 4:15 PM EDT	Tornado Warning Emergency	RAH	Harnett, Johnston, Sampson	45 min
Apr 16, 4:25 PM EDT	Tornado Warning Emergency	RAH	Franklin, Halifax, Nash, Warren	50 min
Apr 16, 4:29 PM EDT	Tornado Warning Emergency	RAH	Cumberland, Sampson	31 min
Apr 16, 4:53 PM EDT	Tornado Warning Emergency	RAH	Johnston, Nash, Wilson	52 min
Apr 16, 4:59 PM EDT	Tornado Warning	RAH	Sampson, Wayne	46 min
Apr 16, 5:02 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Wake	58 min
Apr 16, 5:12 PM EDT	Tornado Warning	RAH	Halifax	18 min
Apr 16, 5:23 PM EDT	Tornado Warning	RAH	Sampson	41 min
Apr 16, 5:25 PM EDT	Tornado Warning	RAH	Edgecombe, Nash, Wilson	30 min
Apr 16, 5:30 PM EDT	Tornado Warning	RAH	Wayne	14 min
Apr 16, 5:41 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Nash, Wilson	34 min
Apr 16, 5:51 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax, Nash	42 min
Apr 16, 5:51 PM EDT	Severe Thunderstorm Warning	RAH	Wayne, Wilson	24 min
Apr 16, 5:58 PM EDT	Tornado Warning	RAH	Wayne	32 min
Apr 16, 6:08 PM EDT	Tornado Warning	RAH	Sampson	17 min
Apr 16, 6:11 PM EDT	Severe Thunderstorm Warning	RAH	Sampson, Wayne	20 min
Apr 16, 6:20 PM EDT	Tornado Warning	RAH	Wayne	10 min
Apr 16, 7:43 PM EDT	Special Weather Statement	RAH	Edgecombe, Halifax, Sampson, Wayne, Wilson	47 min

Nearby

Tornado Warnings in North Carolina, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.