Alert archive / South Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 120, NWS Columbia, SC

July 9, 20165 counties in South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jul 9, 2016, 12:15 AM EDT for 5 counties in South Carolina. It was in force for 45 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: Jul 9, 2016, 12:15 AM EDT (04:15 UTC)
Expired: Jul 9, 2016, 1:00 AM EDT
In force: 45 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Calhoun County, SC, Clarendon County, SC, Lee County, SC, Richland County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 96 km from the middle of the area, began a volume at 04:15 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
Jul 9, 12:20 AM EDT	TSTM WND DMG	Turbeville, SC	REPORTS OF TREES DOWN IN TURBEVILLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 5 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 4.3 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: 3204 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1436 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 14.0

Open this sounding in Storm Lab

The text

As transmitted.

875 
WUUS52 KCAE 090415
SVRCAE
SCC017-027-061-079-085-090500-
/O.NEW.KCAE.SV.W.0120.160709T0415Z-160709T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1215 AM EDT SAT JUL 9 2016

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA...
  SOUTHEASTERN RICHLAND COUNTY IN CENTRAL SOUTH CAROLINA...
  LEE COUNTY IN CENTRAL SOUTH CAROLINA...
  CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA...
  SUMTER COUNTY IN CENTRAL SOUTH CAROLINA...

* UNTIL 100 AM EDT

* AT 1214 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR LYDIA TO 6 MILES SOUTH OF EASTOVER...MOVING
  SOUTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SUMTER...MANNING...BISHOPVILLE...SOUTH SUMTER...SUMMERTON...
  EASTOVER...MILLWOOD...OAKLAND...MULBERRY...TURBEVILLE...
  MAYESVILLE...PINEWOOD...LYNCHBURG...PAXVILLE...OSWEGO...
  CANE SAVANNAH...WEDGEWOOD...SHILOH...LAKEWOOD AND EAST SUMTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING
WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3382 7992 3377 7999 3372 7997 3346 8015
      3344 8027 3383 8084 3435 8019 3423 8011
      3420 8011 3416 8016 3414 8015 3403 7997
      3400 7990 3398 7990 3395 7998 3388 7994
      3389 7988
TIME...MOT...LOC 0414Z 298DEG 28KT 3428 8017 3379 8067 

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

1 follow-up statement

545 
WWUS52 KCAE 090447
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1247 AM EDT SAT JUL 9 2016

SCC017-061-079-090455-
/O.CAN.KCAE.SV.W.0120.000000T0000Z-160709T0500Z/
CALHOUN SC-RICHLAND SC-LEE SC-
1247 AM EDT SAT JUL 9 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CALHOUN...
SOUTHEASTERN RICHLAND AND LEE COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3382 7992 3377 7999 3372 7997 3349 8013
      3348 8015 3346 8015 3344 8027 3363 8054
      3363 8053 3368 8058 3401 8008 3401 8003
      3404 8000 3400 7990 3398 7990 3395 7998
      3388 7994 3389 7988
TIME...MOT...LOC 0445Z 298DEG 28KT 3417 7993 3368 8043 

$$

SCC027-085-090500-
/O.CON.KCAE.SV.W.0120.000000T0000Z-160709T0500Z/
CLARENDON SC-SUMTER SC-
1247 AM EDT SAT JUL 9 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT
FOR CLARENDON AND CENTRAL SUMTER COUNTIES...

AT 1245 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR TIMMONSVILLE TO 6 MILES NORTHWEST OF SUMMERTON...
MOVING SOUTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MANNING...SUMMERTON...TURBEVILLE...PINEWOOD...PAXVILLE...SHILOH...
PRIVATEER AND LAKEWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

IF ON OR NEAR LAKE MARION...GET AWAY FROM THE WATER AND MOVE INDOORS
OR INSIDE A VEHICLE. DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 3382 7992 3377 7999 3372 7997 3349 8013
      3348 8015 3346 8015 3344 8027 3363 8054
      3363 8053 3368 8058 3401 8008 3401 8003
      3404 8000 3400 7990 3398 7990 3395 7998
      3388 7994 3389 7988
TIME...MOT...LOC 0445Z 298DEG 28KT 3417 7993 3368 8043 

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

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 10:56 PM EDT, 1 hour 19 minutes earlier.

Area forecast discussion, Jul 8, 10:56 PM EDT, 1 hour 19 minutes before

Area Forecast Discussion
National Weather Service Columbia SC
1056 PM EDT FRI JUL 8 2016

.SYNOPSIS...
An upper level disturbance will move across the area tonight.
Otherwise, weak ridging will prevail aloft into the weekend. The
ridging should also help make temperatures a few degrees hotter
into the weekend.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
Showers and thunderstorms continue moving in from the upstate with
several thunderstorms have strong and gusty winds. Expect
thunderstorms to once again cross the central and northern
Midlands with damaging wind gusts again possible as the storms
cross the area. Benefit of the storms will be to quickly cool
temperatures with areas already seeing rainfall dropping into the
middle to upper 70s. Have lowered temperatures a few
degrees...however even with the rainfall debris cloudiness
overnight will keep temperatures for most areas in the middle 70s.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY/...
Additional diurnal convection will be possible both Saturday and
Sunday, with a better chance on Sunday. Overnight lows for
Saturday night will be mostly in the middle to upper 70s. It will
be very hot during the afternoon, with the west flow ahead of an
approaching cold front and the upper ridging. Have continued to
forecast temperatures just above the guidance based on the recent
bias and this hot pattern. Expect heat index values close to the
heat advisory criteria of 110 Saturday especially across the
southern Midlands and portions of the CSRA.

&&

.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...
Heat index values remain just below heat advisory criteria of 110
Monday. The GFS display the front stalled close to the area
through Wednesday. Few changes to the forecasted temperatures
later in the extended period, but max temps tend a lower a bit to
the middle to upper 90s due to some erosion of the upper ridge
over the southeast. Only relief from the afternoon heat may come
in the way of isolated or scattered diurnal convection each day.

&&

.AVIATION /03Z SATURDAY THROUGH WEDNESDAY/...
VFR conditions are expected through most of the taf period.
However...lines of convection stretching from the Upstate into North
Carolina will continue to push southeast this evening through
midnight. Have added vcts to tafs at CAE/CUB/OGB during the late
evening hours through about midnight as this activity could hold
together and affect the central Midlands. Otherwise...models
indicate a low level around 20 to 25 kts which will help keep winds
up across the area. Expect winds from the west around 4 to 8 knots
overnight. Do not expect much fog formation toward morning with
mixing.

On Saturday...expect more scattered cu by midday and winds from the
west southwest/west at around 10 to 12 knots with higher gusts by
18z.

EXTENDED AVIATION OUTLOOK...Restrictions possible in diurnal
convection each afternoon along with late night/early morning
patchy fog.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.

&&

Hazardous weather outlook, Jul 8, 7:38 PM EDT, 4 hours 37 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
738 PM EDT FRI JUL 8 2016

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-092345-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
738 PM EDT FRI JUL 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

AFTERNOON TEMPERATURES ON SATURDAY ARE ONCE AGAIN EXPECTED TO
CLIMB TO AROUND 100 DEGREES TO THE LOWER 100S IN MANY AREAS.
THESE TEMPERATURES WILL COMBINE WITH LOW-LEVEL MOISTURE TO CREATE
HEAT INDEX VALUES BETWEEN 105 AND 109 DEGREES LATE SATURDAY
AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 8, 11:21 PM EDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1121 PM EDT FRI JUL 8 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1002 PM     TSTM WND DMG     8 NE NEWBERRY           34.37N 81.53W
07/08/2016                   NEWBERRY           SC   911 CALL CENTER

            REPORTED A FEW TREES DOWN ALONG WITH ONE
            POWER LINE DOWN IN THE AREA OF MT. BETHEL
            GARMANY ROAD AND HWY. 176. .

&&

LCV

Local storm report, Jul 8, 11:45 PM EDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1145 PM EDT FRI JUL 8 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1039 PM     TSTM WND DMG     3 NNE CHESTERFIELD      34.78N 80.07W
07/08/2016                   CHESTERFIELD       SC   EMERGENCY MNGR

            REPORTED SEVERAL TREES AND POWER LINES DOWN
            BETWEEN THE TOWN OF CHESTERFIELD AND THE
            NORTH CAROLINA LINE. .

&&

LCV

Local storm report, Jul 8, 11:57 PM EDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1157 PM EDT FRI JUL 8 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1147 PM     HAIL             THOMSON                 33.47N 82.50W
07/08/2016  E0.88 INCH       MCDUFFIE           GA   PUBLIC

            PUBLIC AND THE 911 CENTER REPORTED PEA TO
            NICKEL SIZE HAIL AROUND THE TOWN OF THOMSON.

&&

LCV

Local storm report, Jul 9, 12:03 AM EDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1203 AM EDT SAT JUL 9 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1139 PM     TSTM WND DMG     THOMSON                 33.47N 82.50W
07/08/2016                   MCDUFFIE           GA   TRAINED SPOTTER

            REPORTED TREE DOWN ON A POWER LINE IN
            THOMSON. .

&&

LCV

Local storm report, Jul 9, 12:11 AM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1211 AM EDT SAT JUL 9 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1138 PM     TSTM WND DMG     6 ESE CAMDEN            34.24N 80.52W
07/08/2016                   KERSHAW            SC   LAW ENFORCEMENT

            SC HIGHWAY PATROL REPORTED TREES IN THE
            ROADWAY ON BREWER SPRINGS RD. AT HWY 34.
            TIME ESTIMATED BY RADAR.

&&

HC

Local storm report, Jul 9, 12:14 AM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1214 AM EDT SAT JUL 9 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1154 PM     TSTM WND DMG     2 SE BURNETTOWN         33.49N 81.82W
07/08/2016                   AIKEN              SC   LAW ENFORCEMENT

            TREES DOWN NEAR PINE LOG ROAD AND KEY
            PLANTATION ROAD.

&&

LCV

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 8:10 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Lancaster	65 min
Jul 8, 9:41 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster	49 min
Jul 8, 10:08 PM EDT	Special Weather Statement	CAE	Fairfield, Newberry, Saluda	67 min
Jul 8, 10:30 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Lexington, Newberry, Richland, Saluda	45 min
Jul 8, 10:35 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster	40 min
Jul 8, 11:00 PM EDT	Special Weather Statement	CAE	Edgefield, McCormick, Saluda	60 min
Jul 8, 11:07 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Fairfield, Kershaw, Lancaster	38 min
Jul 8, 11:11 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Edgefield, McCormick	49 min
Jul 8, 11:46 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Kershaw, Lee, Richland, Sumter	29 min
Jul 8, 11:50 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Orangeburg	40 min
Jul 9, 12:27 AM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Orangeburg	48 min
Jul 9, 10:37 AM EDT	Heat Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Clarendon	8 hr
Jul 9, 5:21 PM EDT	Special Weather Statement	CAE	Orangeburg	54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2016 Every severe thunderstorm warning in 2016

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.