Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 13, NWS Columbia, SC

April 3, 2017Calhoun County, Sumter County, South Carolina

NWS Columbia, SC issued this tornado warning at Apr 3, 2017, 5:11 PM EDT for Calhoun County, Sumter County, South Carolina. It was in force for 34 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 3, 2017, 5:11 PM EDT (21:11 UTC)
Expired: Apr 3, 2017, 5:45 PM EDT
In force: 34 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Calhoun County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 53 km from the middle of the area, began a volume at 21:13 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 3, 5:18 PM EDT	TSTM WND DMG	4 Nnw Cameron, SC	DEPUTY FIRE CHIEF REPORTS TREES AND POWER POLES DOWN ALONG SIKES, RD AND MOORER RD NEAR BELLEVILLE, RD. TWO COMMERCIAL STRUCTURES IN THE AREA SUSTAINED MAJOR DAMAGE WITH MINOR ROOF DAMAGE TO SEVERAL HOMES.
Apr 3, 5:18 PM EDT	TORNADO	4 Nnw Cameron, SC	IMAGES FROM CERTIFIED STORM SPOTTER SHOWS MULTIPLE TREES SNAPPED OR UPROOTED, SNAPPED AND KNOCKED OVER POWER POLES AND DAMAGE TO A BARN. STORM SURVEY WILL BE CONDUCTED.

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 3, 2:07 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.2 hours before the alert went out and 106 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: 1059 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

327 
WFUS52 KCAE 032111
TORCAE
SCC017-085-032145-
/O.NEW.KCAE.TO.W.0013.170403T2111Z-170403T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
511 PM EDT MON APR 3 2017

The National Weather Service in Columbia has issued a

* Tornado Warning for...
  East central Calhoun County in central South Carolina...
  Southwestern Sumter County in central South Carolina...

* Until 545 PM EDT
    
* At 510 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near St. Matthews, or near Brookdale, moving northeast
  at 40 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  St. Matthews around 515 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3366 8051 3357 8076 3361 8082 3362 8083
      3374 8065 3375 8064 3375 8061 3378 8060
      3381 8056 3368 8049
TIME...MOT...LOC 2110Z 236DEG 33KT 3360 8079 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

fwa

5 follow-up statements

042 
WWUS52 KCAE 032117
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
517 PM EDT MON APR 3 2017

SCC017-085-032145-
/O.CON.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Calhoun SC-Sumter SC-
517 PM EDT MON APR 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR EAST
CENTRAL CALHOUN AND SOUTHWESTERN SUMTER COUNTIES...
    
At 516 PM EDT, a severe thunderstorm capable of producing a tornado
was located near St. Matthews, or 10 miles northeast of Brookdale,
moving northeast at 40 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
east central Calhoun and southwestern Sumter Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 3366 8051 3357 8076 3361 8082 3362 8083
      3374 8065 3375 8064 3375 8061 3378 8060
      3381 8056 3368 8049
TIME...MOT...LOC 2116Z 236DEG 33KT 3364 8073 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

fwa

571 
WWUS52 KCAE 032121
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
521 PM EDT MON APR 3 2017

SCC017-085-032145-
/O.CON.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Calhoun SC-Sumter SC-
521 PM EDT MON APR 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR EAST
CENTRAL CALHOUN AND SOUTHWESTERN SUMTER COUNTIES...
        
At 521 PM EDT, a confirmed tornado was located near St. Matthews, or
9 miles northeast of Brookdale, moving northeast at 30 mph.

HAZARD...Damaging tornado and quarter size hail. 

SOURCE...Radar confirmed tornado. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
east central Calhoun and southwestern Sumter Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3366 8051 3360 8072 3364 8074 3374 8065
      3375 8064 3375 8061 3378 8060 3381 8056
      3368 8049
TIME...MOT...LOC 2121Z 243DEG 26KT 3362 8072 

TORNADO...OBSERVED
HAIL...1.00IN

$$

fwa

108 
WWUS52 KCAE 032128
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
528 PM EDT MON APR 3 2017

SCC017-085-032145-
/O.CON.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Calhoun SC-Sumter SC-
528 PM EDT MON APR 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR EAST
CENTRAL CALHOUN AND SOUTHWESTERN SUMTER COUNTIES...
    
At 527 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles east of St. Matthews, or 15 miles northeast of
Brookdale, moving northeast at 40 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
east central Calhoun and southwestern Sumter Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3362 8066 3367 8069 3371 8064 3373 8062
      3381 8056 3368 8049 3366 8051
TIME...MOT...LOC 2127Z 237DEG 37KT 3366 8063 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

fwa

644 
WWUS52 KCAE 032135
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
535 PM EDT MON APR 3 2017

SCC017-032144-
/O.CAN.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Calhoun SC-
535 PM EDT MON APR 3 2017

...THE TORNADO WARNING FOR EAST CENTRAL CALHOUN COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has  moved out 
of the warned area. therefore the warning has been cancelled.

A tornado watch remains in effect until 900 PM EDT for central South
Carolina.

LAT...LON 3366 8052 3365 8055 3366 8056 3368 8056
      3368 8058 3370 8059 3371 8060 3372 8062
      3381 8056 3368 8049
TIME...MOT...LOC 2134Z 236DEG 33KT 3370 8056 

$$

SCC085-032145-
/O.CON.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Sumter SC-
535 PM EDT MON APR 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
SOUTHWESTERN SUMTER COUNTY...
    
At 534 PM EDT, a severe thunderstorm capable of producing a tornado
was located 11 miles north of Elloree, or 18 miles southwest of South
Sumter, moving northeast at 40 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
southwestern Sumter County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3366 8052 3365 8055 3366 8056 3368 8056
      3368 8058 3370 8059 3371 8060 3372 8062
      3381 8056 3368 8049
TIME...MOT...LOC 2134Z 236DEG 33KT 3370 8056 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

fwa

155 
WWUS52 KCAE 032142
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
542 PM EDT MON APR 3 2017

SCC085-032151-
/O.EXP.KCAE.TO.W.0013.000000T0000Z-170403T2145Z/
Sumter SC-
542 PM EDT MON APR 3 2017

...THE TORNADO WARNING FOR SOUTHWESTERN SUMTER COUNTY WILL EXPIRE AT
545 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 900 PM EDT for central South
Carolina.

Report large hail...
damaging winds or flooding to local law enforcement. Send reports by
Facebook or Twitter to NWSColumbia, e-
mail us at caewx@noaa.gov or call 803-234-4115.

Remember, a Severe Thunderstorm Warning still remains in effect for
Sumter County until 5 PM.

LAT...LON 3366 8052 3365 8055 3366 8056 3368 8056
      3368 8058 3370 8059 3371 8060 3372 8062
      3381 8056 3368 8049
TIME...MOT...LOC 2141Z 236DEG 33KT 3373 8050 

$$

fwa

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 3:52 AM EDT	Lake Wind Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	20 hr
Apr 3, 12:06 PM EDT	Special Weather Statement	CAE	Edgefield, McCormick	24 min
Apr 3, 1:42 PM EDT	Special Weather Statement	CAE	Aiken	33 min
Apr 3, 2:20 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	48 hr
Apr 3, 2:27 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	2 hr
Apr 3, 2:47 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	58 min
Apr 3, 3:07 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell	53 min
Apr 3, 3:17 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Newberry, Saluda	58 min
Apr 3, 3:28 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield	62 min
Apr 3, 3:31 PM EDT	Tornado Warning	CAE	Edgefield, McCormick	29 min
Apr 3, 3:42 PM EDT	Special Weather Statement	CAE	Kershaw	33 min
Apr 3, 3:42 PM EDT	Tornado Warning	CAE	Barnwell	48 min
Apr 3, 3:57 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Lexington	33 min
Apr 3, 4:10 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	65 min
Apr 3, 4:12 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	3 hr
Apr 3, 4:15 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Newberry, Richland, Saluda	45 min
Apr 3, 4:18 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Orangeburg	42 min
Apr 3, 4:32 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell	28 min
Apr 3, 4:33 PM EDT	Tornado Warning	CAE	Lexington	26 min
Apr 3, 4:51 PM EDT	Flash Flood Warning	CAE	Richland	114 min
Apr 3, 4:51 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lee, Sumter	54 min
Apr 3, 4:55 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Richland, Sumter	50 min
Apr 3, 4:57 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Clarendon, Orangeburg	48 min
Apr 3, 5:01 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Kershaw, Richland	33 min
Apr 3, 5:45 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	15 min
Apr 3, 5:46 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Lee, Orangeburg, Sumter	29 min

Nearby

Tornado Warnings in South Carolina, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.