Alert archive / North Carolina / Tornado Warnings in 2013

Tornado Warning 4, NWS Raleigh, NC

April 19, 2013Granville County, North Carolina

NWS Raleigh, NC issued this tornado warning at Apr 19, 2013, 4:21 PM EDT for Granville County, North Carolina. It was in force for 24 min. 1 report 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 19, 2013, 4:21 PM EDT (20:21 UTC)
Expired
Apr 19, 2013, 4:45 PM EDT
In force
24 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon

County Granville County, NC

The radar

The Raleigh/Durham radar (KRAX), 92 km from the middle of the area, began a volume at 20:23 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

TimeReportWhereRemark
Apr 19, 4:45 PM EDTTSTM WND DMG2 Ne Stovall, NCNUMEROUS DOWNED TREES ALONG HIGHWAY 15 BETWEEN STOVALL AND BULLOCK...AND NORTH TO THE STATE LINE. ALSO A REPORT OF A ROOF BLOWN OFF OF A BARN.

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.

IssuedProductOfficeLasted
Apr 19, 2:00 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.4 hours before the alert went out and 114 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 12:00Z on 2013-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2013-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 250 square meters per square second.19395878Sfc1 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
105 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
250 m²/s²
0-3 km storm-relative helicity
333 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

120 
WFUS52 KRAH 192021
TORRAH
NCC077-192045-
/O.NEW.KRAH.TO.W.0004.130419T2021Z-130419T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
421 PM EDT FRI APR 19 2013

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 445 PM EDT

* AT 419 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES NORTHWEST OF BEREA...OR 10 MILES EAST OF ROXBORO...
  MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OAK HILL...
  KERR LAKE...STOVALL...

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 TO YOUR
LOCAL LAW ENFORCEMENT AGENCY.THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

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

&&

LAT...LON 3655 7845 3654 7845 3652 7847 3652 7849
      3649 7851 3637 7851 3629 7880 3654 7880
      3655 7876
TIME...MOT...LOC 2021Z 226DEG 38KT 3638 7880

$$

10
1 follow-up statement
897 
WWUS52 KRAH 192040
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
440 PM EDT FRI APR 19 2013

NCC077-192045-
/O.CON.KRAH.TO.W.0004.000000T0000Z-130419T2045Z/
GRANVILLE NC-
440 PM EDT FRI APR 19 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR
NORTHEASTERN GRANVILLE COUNTY...

AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR KERR LAKE...OR 9
MILES EAST OF VIRGILINA...MOVING NORTHEAST AT 45 MPH.

HAZARDS IN THE WARNING INCLUDE...
A TORNADO.
QUARTER SIZED HAIL.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... 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.

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

LAT...LON 3655 7845 3654 7845 3653 7847 3652 7847
      3652 7849 3649 7851 3644 7862 3647 7869
      3654 7874
TIME...MOT...LOC 2040Z 226DEG 38KT 3652 7862

$$

10

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 2:37 PM EDTSpecial Weather StatementRAHDavidson38 min
Apr 19, 3:22 PM EDTSpecial Weather StatementRAHGuilford53 min
Apr 19, 3:30 PM EDTTornado WarningRAHAlamance, Orange30 min
Apr 19, 3:39 PM EDTTornado WarningRAHGuilford36 min
Apr 19, 3:42 PM EDTSpecial Weather StatementRAHDavidson33 min
Apr 19, 3:53 PM EDTTornado WarningRAHDurham, Orange, Person37 min
Apr 19, 3:55 PM EDTSevere Thunderstorm WarningRAHDavidson, Guilford, Randolph35 min
Apr 19, 4:31 PM EDTSevere Thunderstorm WarningRAHGuilford, Randolph44 min
Apr 19, 4:34 PM EDTSevere Thunderstorm WarningRAHAnson, Stanly56 min
Apr 19, 4:57 PM EDTSevere Thunderstorm WarningRAHChatham, Randolph48 min
Apr 19, 5:06 PM EDTSevere Thunderstorm WarningRAHAlamance, Guilford, Orange39 min
Apr 19, 5:12 PM EDTSpecial Weather StatementRAHGranville, Person63 min
Apr 19, 5:14 PM EDTSevere Thunderstorm WarningRAHMontgomery, Moore, Richmond61 min
Apr 19, 5:28 PM EDTTornado WarningRAHChatham, Moore, Randolph32 min
Apr 19, 5:44 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Durham, Granville, Lee, Moore and 3 more46 min
Apr 19, 5:45 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Hoke, Scotland60 min
Apr 19, 6:14 PM EDTSevere Thunderstorm WarningRAHFranklin, Vance, Wake, Warren61 min
Apr 19, 6:30 PM EDTSevere Thunderstorm WarningRAHChatham, Durham, Granville, Lee, Orange, Vance and 1 more15 min
Apr 19, 6:45 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Hoke, Johnston, Scotland60 min
Apr 19, 6:55 PM EDTSevere Thunderstorm WarningRAHDurham, Granville35 min
Apr 19, 7:14 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Halifax, Nash, Wilson46 min
Apr 19, 7:18 PM EDTSevere Thunderstorm WarningRAHFranklin, Vance, Warren57 min
Apr 19, 7:42 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Johnston, Sampson, Wayne63 min
Apr 19, 7:52 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Halifax, Nash, Wilson53 min

Nearby

Tornado Warnings in North Carolina, 2013Every tornado warning in 2013Tornadoes in 2013

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.