Alert archive / South Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 134, NWS Columbia, SC

July 15, 2016Fairfield County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jul 15, 2016, 1:26 PM EDT for Fairfield County, South Carolina. It was in force for 33 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 15, 2016, 1:26 PM EDT (17:26 UTC)
Expired: Jul 15, 2016, 1:59 PM EDT
In force: 33 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Fairfield County, SC

The radar

The Columbia radar (KCAE), 59 km from the middle of the area, began a volume at 17:29 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 15, 1:34 PM EDT	TSTM WND DMG	2 Ssw Winnsboro Mills, SC	MULTIPLE TREES DOWN HWY 321, RESERVOIR RD AND HWY 321 BYPASS.

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 8 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 12:00Z, 5.4 hours before the alert went out and 194 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: 1664 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

994 
WUUS52 KCAE 151726
SVRCAE
SCC039-151815-
/O.NEW.KCAE.SV.W.0134.160715T1726Z-160715T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
126 PM EDT FRI JUL 15 2016

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL FAIRFIELD COUNTY IN CENTRAL SOUTH CAROLINA...

* UNTIL 215 PM EDT

* AT 125 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER WINNSBORO...
  MOVING EAST AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  WINNSBORO...RIDGEWAY AND WINNSBORO MILLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3454 8089 3451 8088 3450 8088 3449 8090
      3446 8088 3443 8085 3435 8082 3424 8121
      3445 8129 3455 8090
TIME...MOT...LOC 1725Z 254DEG 13KT 3438 8109 

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

AWP

1 follow-up statement

430 
WWUS52 KCAE 151759
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
159 PM EDT FRI JUL 15 2016

SCC039-151809-
/O.CAN.KCAE.SV.W.0134.000000T0000Z-160715T1815Z/
FAIRFIELD SC-
159 PM EDT FRI JUL 15 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FAIRFIELD COUNTY IS
CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3454 8089 3451 8088 3450 8088 3449 8090
      3446 8088 3443 8085 3435 8082 3424 8121
      3445 8129 3455 8090
TIME...MOT...LOC 1756Z 254DEG 13KT 3441 8094 

$$

FWA

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 15, 12:27 PM EDT, 59 minutes earlier.

Area forecast discussion, Jul 15, 12:27 PM EDT, 59 minutes before

Area Forecast Discussion
National Weather Service Columbia SC
1227 PM EDT FRI JUL 15 2016

.SYNOPSIS...
A pressure ridge will extend westward from the Atlantic into the
northern Gulf of Mexico through Saturday. North of the ridge a
pressure trough will be in the forecast area. There will also be
weak upper troughing over the area. The pattern supports an
increased chance of thunderstorms.

&&

.NEAR TERM /THROUGH TONIGHT/...
Convergence into a weak surface trough plus an increase in
moisture ahead of a weak upper trough supports thunderstorms.
Convection has already begun to occur across the central Midlands.
The NAM displayed the greatest QPF in the afternoon and GFS in the
evening...but expect convection to continue this afternoon. SPC
WRF and ARW had the greatest thunderstorm coverage in the evening.
We followed the high- resolution models with the placement of
highest pops. The NAM displayed surface- based LI's -6 to -7. The
moderate instability supports a possibly of damaging wind with the
thunderstorms. Leaned toward the higher maximum temperature
guidance based on recent verification. Followed the guidance
consensus for the low temperature forecast.

&&

.SHORT TERM /SATURDAY THROUGH SATURDAY NIGHT/...
Continued surface troughing plus weak upper troughing supports
thunderstorms Saturday and Saturday night especially near the time
of maximum heating. Followed the guidance consensus for the pop
forecast. Instability may be moderate. The NAM displayed surface-
based LI's -4 to -6. Damaging wind could possibly occur with the
thunderstorms. Maximum temperatures will likely be lower compared
to previous days because of deeper moisture in the area. The
temperature guidance was close.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
The GFS and ECMWF displayed surface ridging extending from the
Atlantic into the Gulf of Mexico during much of the medium-range
period. The models showed some troughing in the forecast area.
The models indicated upper ridging early but troughing along the
east coast by the middle of the week. The guidance consensus
supported temperatures near normal with chance pops.

&&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
VFR conditions generally expected through the 24-hr TAF period
with restrictions possible in diurnal convection.

Scattered diurnal convection has already begun and will need to
adjust tafs for CAE/CUB as convection continues to develop this
afternoon and evening. Winds will generally be out of the
southwest through the TAF period at 5 knots or less overnight and
picking up to around 5 to 10 kts after 15Z today.

EXTENDED AVIATION OUTLOOK...Increasing potential for restrictions
in convection this weekend.

&&

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

&&

SYNOPSIS...77
NEAR TERM...99
SHORT TERM...99
LONG TERM...99
AVIATION...77

Hazardous weather outlook, Jul 15, 3:41 AM EDT, 9 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
341 AM EDT FRI JUL 15 2016

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-160745-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
341 AM EDT FRI JUL 15 2016

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

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS THIS AFTERNOON AND EVENING COULD POSSIBLY CONTAIN
DAMAGING WIND.

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

THUNDERSTORMS SATURDAY AFTERNOON AND EVENING COULD POSSIBLY
CONTAIN DAMAGING WIND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 15, 12:30 PM EDT, 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1230 PM EDT FRI JUL 15 2016

SCZ015-021-022-028-151715-
RICHLAND-FAIRFIELD-LANCASTER-KERSHAW-
1230 PM EDT FRI JUL 15 2016

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL KERSHAW...
SOUTHEASTERN LANCASTER...NORTHERN RICHLAND AND EAST CENTRAL FAIRFIELD
COUNTIES...

AT 1230 PM EDT...A STRONG THUNDERSTORM WAS 9 MILES NORTHWEST OF
LUGOFF...OR 11 MILES NORTHWEST OF CAMDEN...MOVING NORTHEAST AT 20
MPH.

WIND GUSTS OF 35 TO 45 MPH ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHEASTERN
RICHLAND...EAST CENTRAL FAIRFIELD...SOUTHERN LANCASTER AND WEST
CENTRAL KERSHAW COUNTIES.

IF YOU ARE ON OR NEAR LAKE WATEREE...GET OUT OF THE WATER AND MOVE
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...
YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER
NOW. DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

LAT...LON 3426 8082 3434 8088 3450 8062 3432 8050
TIME...MOT...LOC 1630Z 244DEG 17KT 3433 8079

LCV

Special weather statement, Jul 15, 12:44 PM EDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1244 PM EDT FRI JUL 15 2016

SCZ021-022-027-028-151730-
LEXINGTON-RICHLAND-FAIRFIELD-KERSHAW-
1244 PM EDT FRI JUL 15 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN KERSHAW...
NORTHEASTERN RICHLAND...SOUTHEASTERN FAIRFIELD AND NORTHEASTERN
LEXINGTON COUNTIES...

AT 1244 PM EDT...A STRONG THUNDERSTORM WAS OVER DENTSVILLE...MOVING
NORTHEAST AT 25 MPH.

WIND GUSTS OF 35 TO 45 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
COLUMBIA...WEST COLUMBIA...CAYCE...FOREST ACRES...ST. ANDREWS...
WOODFIELDS...DENTSVILLE...ARCADIA LAKES...WOODFIELD...FIVE POINTS...
FORT JACKSON...BLYTHEWOOD AND SEVEN OAKS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 3397 8106 3408 8116 3434 8089 3411 8064
TIME...MOT...LOC 1644Z 241DEG 21KT 3409 8099

LCV

Special weather statement, Jul 15, 12:52 PM EDT, 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1252 PM EDT FRI JUL 15 2016

SCZ015-016-151730-
CHESTERFIELD-LANCASTER-
1252 PM EDT FRI JUL 15 2016

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL LANCASTER AND
NORTHWESTERN CHESTERFIELD COUNTIES...

AT 1252 PM EDT...A STRONG THUNDERSTORM WAS OVER PAGELAND...OR 15
MILES SOUTHEAST OF MONROE. THE STORM WAS NEARLY STATIONARY.

WIND GUSTS OF 45 TO 55 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
PAGELAND AND MOUNT CROGHAN.

LAT...LON 3481 8046 3481 8024 3477 8019 3465 8045
      3480 8057 3482 8054
TIME...MOT...LOC 1652Z 242DEG 1KT 3478 8042

AWP

Local storm report, Jul 15, 1:12 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
112 PM EDT FRI JUL 15 2016

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

0108 PM     HAIL             5 W ELGIN               34.17N 80.88W
07/15/2016  E0.75 INCH       RICHLAND           SC   PUBLIC

            DIME-SIZE HAIL ON PALMETTO PARK CIRCLE,
            COLUMBIA, SC.

&&

DA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 12:30 PM EDT	Special Weather Statement	CAE	Kershaw	45 min
Jul 15, 12:44 PM EDT	Special Weather Statement	CAE	Richland	46 min
Jul 15, 12:52 PM EDT	Special Weather Statement	CAE	Chesterfield	38 min
Jul 15, 1:00 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lee, Richland	45 min
Jul 15, 1:12 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	33 min
Jul 15, 1:20 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lancaster, Lee	40 min
Jul 15, 1:55 PM EDT	Special Weather Statement	CAE	Bamberg, Calhoun, Orangeburg	65 min
Jul 15, 1:56 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lee, Richland, Sumter	49 min
Jul 15, 2:08 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw	67 min
Jul 15, 2:11 PM EDT	Special Weather Statement	CAE	Clarendon	49 min
Jul 15, 2:21 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	24 min
Jul 15, 2:49 PM EDT	Special Weather Statement	CAE	Lee, Sumter	26 min
Jul 15, 2:59 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Orangeburg	31 min
Jul 15, 3:16 PM EDT	Special Weather Statement	CAE	Sumter	59 min
Jul 15, 3:20 PM EDT	Special Weather Statement	CAE	Clarendon	25 min
Jul 15, 3:46 PM EDT	Special Weather Statement	CAE	Clarendon	29 min
Jul 15, 6:11 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	49 min
Jul 15, 7:26 PM EDT	Special Weather Statement	CAE	Newberry	49 min
Jul 15, 7:45 PM EDT	Special Weather Statement	CAE	Aiken, Lexington	60 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.