Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 19, NWS Greenville-Spartanburg, SC

April 16, 2011Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Apr 16, 2011, 1:00 PM EDT for Union County, North Carolina. It was in force for 26 min. 2 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, 1:00 PM EDT (17:00 UTC)
Expired: Apr 16, 2011, 1:26 PM EDT
In force: 26 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

County Union County, NC

The radar

The Columbia radar (KCAE), 148 km from the middle of the area, began a volume at 17:00 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.

What was reported inside it

Time	Report	Where	Remark
Apr 16, 1:00 PM EDT	TORNADO	3 N Monroe, NC	EF0 TORNADO CONFIRMED 3 MILES NORTH OF MONROE NC.
Apr 16, 1:06 PM EDT	TSTM WND DMG	3 Nne Monroe, NC	ROOF AND SIDING DAMAGE TO STRUCTURES ALONG HIGHWAY 601/CONCORD HIGHWAY. TREES DOWN AS WELL.

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, 5:57 AM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.0 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-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: 516 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 605 m²/s²
0-3 km storm-relative helicity: 909 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.

013 
WFUS52 KGSP 161700
TORGSP
NCC179-161730-
/O.NEW.KGSP.TO.W.0019.110416T1700Z-110416T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
100 PM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN UNION COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 130 PM EDT

* AT 1259 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES
  SOUTHWEST OF UNIONVILLE...OR 3 MILES NORTH OF MONROE...MOVING
  NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  UNIONVILLE...
  FAIRVIEW...
  NEW SALEM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR STURDIER SHELTER.
OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF YOUR HOME
OR PLACE OF BUSINESS. MAKE SURE THERE ARE AS MANY WALLS AND FLOORS
BETWEEN YOU AND THE OUTSIDE AS POSSIBLE.

TO REPORT TORNADOES...DAMAGING WINDS...LARGE HAIL...OR FLOODING...
THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3511 8028 3499 8052 3504 8061 3519 8051
      3517 8046 3517 8039 3518 8037 3517 8035
      3520 8028 3519 8027
TIME...MOT...LOC 1700Z 222DEG 40KT 3503 8055

$$
LANE

1 follow-up statement

496 
WWUS52 KGSP 161726
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
126 PM EDT SAT APR 16 2011

NCC179-161735-
/O.CAN.KGSP.TO.W.0019.000000T0000Z-110416T1730Z/
UNION NC-
126 PM EDT SAT APR 16 2011

...THE TORNADO WARNING FOR NORTHEASTERN UNION COUNTY IN THE PIEDMONT
OF NORTH CAROLINA IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.  

LAT...LON 3511 8028 3499 8052 3504 8061 3519 8051
      3517 8046 3517 8039 3518 8037 3517 8035
      3520 8028 3519 8027
TIME...MOT...LOC 1725Z 222DEG 40KT 3524 8032

$$
LANE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 4:20 AM EDT	Flash Flood Warning	GSP	Henderson	6 hr
Apr 16, 4:54 AM EDT	Flash Flood Warning	GSP	Transylvania	6 hr
Apr 16, 7:23 AM EDT	River Flood Warning	GSP	Henderson, Transylvania	60 hr
Apr 16, 7:37 AM EDT	Areal Flood Advisory	GSP	Avery, Mitchell, Yancey	4 hr
Apr 16, 8:35 AM EDT	Flash Flood Warning	GSP	Avery, Burke, Caldwell, McDowell, Mitchell, Yancey	6 hr
Apr 16, 9:48 AM EDT	Areal Flood Warning	GSP	Henderson, Transylvania	6 hr
Apr 16, 10:23 AM EDT	Special Weather Statement	GSP	Cleveland	37 min
Apr 16, 11:01 AM EDT	Special Weather Statement	GSP	Catawba, Gaston, Lincoln	29 min
Apr 16, 11:31 AM EDT	Special Weather Statement	GSP	Alexander, Catawba, Gaston, Iredell, Lincoln, Mecklenburg	29 min
Apr 16, 11:50 AM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Davie, Gaston, Iredell, Lincoln, Mecklenburg and 1 more	40 min
Apr 16, 11:59 AM EDT	Special Weather Statement	GSP	Mecklenburg, Union	46 min
Apr 16, 12:30 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Davie, Rowan	45 min
Apr 16, 12:40 PM EDT	Tornado Warning	GSP	Davie, Rowan	18 min
Apr 16, 12:46 PM EDT	Special Weather Statement	GSP	Union	44 min
Apr 16, 2:16 PM EDT	Areal Flood Warning	GSP	Burke, Caldwell	6 hr
Apr 16, 3:31 PM EDT	Areal Flood Advisory	GSP	Henderson, Transylvania	119 min
Apr 16, 3:52 PM EDT	Lake Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	14 hr
Apr 16, 3:52 PM EDT	Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	4 hr
Apr 16, 7:53 PM EDT	Areal Flood Warning	GSP	Burke, Caldwell	6 hr

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.