Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 38, NWS Columbia, SC

April 3, 20174 counties in South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Apr 3, 2017, 5:46 PM EDT for 4 counties in South Carolina. It was in force for 29 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 3, 2017, 5:46 PM EDT (21:46 UTC)
Expired
Apr 3, 2017, 6:15 PM EDT
In force
29 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Clarendon County, SC, Lee County, SC, Orangeburg County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 96 km from the middle of the area, began a volume at 21:50 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 3, 6:07 PM EDTTSTM WND DMG7 Wsw Turbeville, SCHIGHWAY PATROL REPORTED TREES DOWN ACROSS I-95 IN THE SOUTHBOUND LANES AT MILE MARKER 130.

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 3, 2:07 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.8 hours before the alert went out and 80 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, Charleston AFB, SC at 12:00Z on 2017-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Charleston AFB, SC at 12:00Z on 2017-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
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.

156 
WUUS52 KCAE 032146
SVRCAE
SCC027-061-075-085-032215-
/O.NEW.KCAE.SV.W.0038.170403T2146Z-170403T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
546 PM EDT MON APR 3 2017

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Southeastern Lee County in central South Carolina...
  Clarendon County in central South Carolina...
  East central Sumter County in central South Carolina...
  Southeastern Orangeburg County in central South Carolina...

* Until 615 PM EDT

* At 545 PM EDT, severe thunderstorms were located along a line
  extending from near Lamar to Indian Field, moving east at 45 mph.

  HAZARD...70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. 

* Locations impacted include...
  Manning, Holly Hill, Summerton, Santee, Turbeville, Mayesville,
  Lynchburg, Eutawville, Paxville, Vance and Shiloh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

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

LAT...LON 3382 7992 3377 7999 3372 7997 3350 8010
      3348 8015 3345 8015 3345 8022 3330 8025
      3326 8032 3328 8035 3326 8043 3333 8051
      3324 8067 3325 8067 3413 8013 3401 7991
      3399 7989 3395 7998 3388 7994 3388 7988
TIME...MOT...LOC 2145Z 252DEG 39KT 3412 8011 3322 8053 

HAIL...<.75IN
WIND...70MPH
 
$$

fwa
2 follow-up statements
131 
WWUS52 KCAE 032158
SVSCAE

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

SCC027-061-075-085-032215-
/O.CON.KCAE.SV.W.0038.000000T0000Z-170403T2215Z/
Lee SC-Clarendon SC-Sumter SC-Orangeburg SC-
558 PM EDT MON APR 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHEASTERN LEE...CLARENDON...EAST CENTRAL SUMTER AND
SOUTHEASTERN ORANGEBURG COUNTIES...

At 558 PM EDT, severe thunderstorms were located along a line
extending from near Timmonsville to near Holly Hill, moving east at
45 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Manning, Holly Hill, Summerton, Turbeville, Mayesville, Lynchburg,
Eutawville, Vance and Shiloh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

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

LAT...LON 3382 7992 3377 7999 3372 7997 3350 8010
      3348 8015 3345 8015 3345 8022 3330 8025
      3326 8032 3328 8035 3326 8043 3333 8051
      3413 8013 3401 7991 3399 7989 3395 7998
      3388 7994 3388 7988
TIME...MOT...LOC 2158Z 252DEG 39KT 3416 7996 3326 8038 

HAIL...<.75IN
WIND...60MPH
 
$$

fwa
557 
WWUS52 KCAE 032216
SVSCAE

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

SCC027-061-075-085-032225-
/O.EXP.KCAE.SV.W.0038.000000T0000Z-170403T2215Z/
Lee SC-Clarendon SC-Sumter SC-Orangeburg SC-
616 PM EDT MON APR 3 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEE...
CLARENDON...EAST CENTRAL SUMTER AND SOUTHEASTERN ORANGEBURG COUNTIES
HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning has been 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.

LAT...LON 3382 7992 3377 7999 3372 7997 3350 8010
      3348 8015 3345 8015 3345 8022 3330 8025
      3326 8032 3328 8035 3326 8043 3333 8051
      3413 8013 3401 7991 3399 7989 3395 7998
      3388 7994 3388 7988
TIME...MOT...LOC 2215Z 252DEG 39KT 3421 7977 3331 8019 

$$

fwa

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 3:52 AM EDTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more20 hr
Apr 3, 12:06 PM EDTSpecial Weather StatementCAEEdgefield, McCormick24 min
Apr 3, 1:42 PM EDTSpecial Weather StatementCAEAiken33 min
Apr 3, 2:20 PM EDTAreal Flood AdvisoryCAELexington, Richland48 hr
Apr 3, 2:27 PM EDTAreal Flood AdvisoryCAELexington, Richland2 hr
Apr 3, 2:47 PM EDTSevere Thunderstorm WarningCAEMcCormick58 min
Apr 3, 3:07 PM EDTSevere Thunderstorm WarningCAEAiken, Barnwell53 min
Apr 3, 3:17 PM EDTSevere Thunderstorm WarningCAEFairfield, Newberry, Saluda58 min
Apr 3, 3:28 PM EDTSevere Thunderstorm WarningCAEEdgefield62 min
Apr 3, 3:31 PM EDTTornado WarningCAEEdgefield, McCormick29 min
Apr 3, 3:42 PM EDTSpecial Weather StatementCAEKershaw33 min
Apr 3, 3:42 PM EDTTornado WarningCAEBarnwell48 min
Apr 3, 3:57 PM EDTSevere Thunderstorm WarningCAEAiken, Barnwell, Lexington33 min
Apr 3, 4:10 PM EDTSevere Thunderstorm WarningCAEFairfield, Kershaw, Lancaster65 min
Apr 3, 4:12 PM EDTAreal Flood AdvisoryCAELexington, Richland3 hr
Apr 3, 4:15 PM EDTSevere Thunderstorm WarningCAECalhoun, Lexington, Newberry, Richland, Saluda45 min
Apr 3, 4:18 PM EDTSevere Thunderstorm WarningCAEBamberg, Calhoun, Orangeburg42 min
Apr 3, 4:32 PM EDTSevere Thunderstorm WarningCAEAiken, Barnwell28 min
Apr 3, 4:33 PM EDTTornado WarningCAELexington26 min
Apr 3, 4:51 PM EDTFlash Flood WarningCAERichland114 min
Apr 3, 4:51 PM EDTSevere Thunderstorm WarningCAEChesterfield, Kershaw, Lee, Sumter54 min
Apr 3, 4:55 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Richland, Sumter50 min
Apr 3, 4:57 PM EDTSevere Thunderstorm WarningCAEBamberg, Calhoun, Clarendon, Orangeburg48 min
Apr 3, 5:01 PM EDTSevere Thunderstorm WarningCAECalhoun, Kershaw, Richland33 min
Apr 3, 5:11 PM EDTTornado WarningCAECalhoun, Sumter34 min
Apr 3, 5:45 PM EDTSevere Thunderstorm WarningCAEChesterfield15 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017Every severe thunderstorm warning 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.