Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 1, NWS Greenville-Spartanburg, SC

February 28, 2011Iredell County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Feb 28, 2011, 4:59 PM EST for Iredell County, Rowan County, North Carolina. It was in force for 17 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: Feb 28, 2011, 4:59 PM EST (21:59 UTC)
Expired: Feb 28, 2011, 5:16 PM EST
In force: 17 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Iredell County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 143 km from the middle of the area, began a volume at 22:00 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 watch it was issued in

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

Issued	Product	Office	Lasted
Feb 28, 1:29 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.0 hours before the alert went out and 81 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: 948 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 425 m²/s²
0-3 km storm-relative helicity: 499 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.

227 
WFUS52 KGSP 282159
TORGSP
NCC097-159-282230-
/O.NEW.KGSP.TO.W.0001.110228T2159Z-110228T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
459 PM EST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  NORTHWESTERN ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 530 PM EST

* AT 458 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES WEST OF
  CLEVELAND...OR NEAR STATESVILLE...MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLEVELAND...

LAT...LON 3569 8065 3574 8089 3583 8088 3586 8070
      3585 8069 3585 8068 3584 8064
TIME...MOT...LOC 2159Z 271DEG 20KT 3578 8085

$$

KRENTZ

2 follow-up statements

854 
WWUS52 KGSP 282214
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
514 PM EST MON FEB 28 2011

NCC097-282224-
/O.CAN.KGSP.TO.W.0001.000000T0000Z-110228T2230Z/
IREDELL NC-
514 PM EST MON FEB 28 2011

...THE TORNADO WARNING FOR CENTRAL IREDELL COUNTY IS CANCELLED...

LAT...LON 3569 8065 3572 8076 3577 8074 3577 8073
      3584 8071 3585 8070 3584 8064
TIME...MOT...LOC 2214Z 271DEG 20KT 3578 8075

$$

NCC159-282230-
/O.CON.KGSP.TO.W.0001.000000T0000Z-110228T2230Z/
ROWAN NC-
514 PM EST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EST FOR
NORTHWESTERN ROWAN COUNTY...

AT 512 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR CLEVELAND...OR 7
MILES EAST OF STATESVILLE...MOVING EAST AT 25 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.

LAT...LON 3569 8065 3572 8076 3577 8074 3577 8073
      3584 8071 3585 8070 3584 8064
TIME...MOT...LOC 2214Z 271DEG 20KT 3578 8075

$$

KRENTZ

315 
WWUS52 KGSP 282216
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
516 PM EST MON FEB 28 2011

NCC159-282226-
/O.CAN.KGSP.TO.W.0001.000000T0000Z-110228T2230Z/
ROWAN NC-
516 PM EST MON FEB 28 2011

...THE TORNADO WARNING FOR NORTHWESTERN ROWAN COUNTY IS CANCELLED...

LAT...LON 3569 8065 3572 8076 3577 8074 3577 8073
      3584 8071 3585 8070 3584 8064
TIME...MOT...LOC 2216Z 271DEG 20KT 3578 8074

$$

KRENTZ

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 27, 8:21 PM EST	Lake Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	23 hr
Feb 28, 3:46 AM EST	Wind Advisory	GSP	Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 11 more	14 hr
Feb 28, 1:25 PM EST	Special Weather Statement	GSP	Avery	35 min
Feb 28, 2:30 PM EST	Severe Thunderstorm Warning	GSP	Madison, Mitchell, Yancey	45 min
Feb 28, 3:14 PM EST	Severe Thunderstorm Warning	GSP	Graham, Swain	61 min
Feb 28, 3:50 PM EST	Special Weather Statement	GSP	Burke, McDowell	25 min
Feb 28, 3:57 PM EST	Severe Thunderstorm Warning	GSP	Jackson, Macon, Transylvania	63 min
Feb 28, 4:09 PM EST	Severe Thunderstorm Warning	GSP	Alexander, Burke, Caldwell, Catawba, Cleveland, Lincoln and 2 more	66 min
Feb 28, 4:38 PM EST	Severe Thunderstorm Warning	GSP	Henderson, Polk, Rutherford, Transylvania	67 min
Feb 28, 4:39 PM EST	Severe Thunderstorm Warning	GSP	Alexander, Catawba, Iredell	38 min
Feb 28, 5:08 PM EST	Severe Thunderstorm Warning	GSP	Davie, Iredell, Rowan	32 min
Feb 28, 5:45 PM EST	Special Weather Statement	GSP	Cabarrus, Mecklenburg, Union	45 min
Feb 28, 6:06 PM EST	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	54 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.