Alert archive / South Carolina / Tornado Warnings in 2004

Tornado Warning 17, NWS Columbia, SC

September 7, 2004Clarendon County, South Carolina

NWS Columbia, SC issued this tornado warning at Sep 7, 2004, 9:38 AM EDT for Clarendon County, South Carolina. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 7, 2004, 9:38 AM EDT (13:38 UTC)
Expired: Sep 7, 2004, 10:15 AM EDT
In force: 37 min
Issued by: NWS Columbia, SC
Area: Counties, with a storm outline in the text

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 77 km from the middle of the area, began a volume at 13:42 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 7, 4:00 AM EDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 1.6 hours before the alert went out and 86 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: 2597 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 466 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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.

334 
WFUS52 KCAE 071338
TORCAE
SCC027-071415-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
938 AM EDT TUE SEP 7 2004

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 1015 AM EDT

* AT 932 AM EDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 7
  MILES SOUTHWEST OF SUMMERTON...OR ABOUT 17 MILES SOUTHWEST OF
  MANNING...MOVING NORTH AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PAXVILLE.

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT...1
800...7 7 5...7 1 9 9.

LAT...LON 3346 8052 3353 8031 3384 8017 3369 8050

$$

SJN

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Sep 7, 3:00 AM EDT, 6 hours 38 minutes earlier.

Area forecast discussion, Sep 7, 3:00 AM EDT, 6 hours 38 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
300 AM EDT TUE SEP 7 2004

.SHORT TERM (TODAY THROUGH THURSDAY)...
THE GFS HAS VERIFIED BETTER AND IS CLOSER TO THE TPC TRACK SO PLAN
TO USE THIS MODEL FOR THE FORECAST. THE MAIN FORECAST PROBLEMS ARE
THE TORNADO AND FLOOD THREATS. THE GFS SHOWS HIGH SHEAR CONTINUING
THROUGH TONIGHT WITH H85 WINDS NEAR 40 KNOTS. THE TROPICAL MOISTURE
PLUS LOW LIFTING CONDENSATION LEVELS SUPPORT A POSSIBILITY OF
TORNADOES. THE THREAT MAY BE GREATEST THIS AFTERNOON BECAUSE OF
HEATING. THE CHS RAOB SHOWED PRECIPITABLE WATER NEAR 2.4 INCHES.
TROPICAL MOISTURE AND TRAINING IN THE BANDS ASSOCIATED WITH THE
REMNANTS OF THE HURRICANE SUPPORTS VERY HEAVY RAIN AND POSSIBLE
FLOODING. WE HAVE ISSUED A FLOOD WATCH FOR TODAY AND TONIGHT.

THE REMNANTS OF FRANCES SHOULD BE LIFTING NORTH OF THE REGION FOR
WEDNESDAY AND THURSDAY...BUT THE GFS SHOWS A SURFACE TROUGH
LINGERING IN THE FORECAST AREA. THIS FEATURE SHOULD SUPPORT
CONTINUED SHOWERS AND THUNDERSTORMS. THE H5 TROUGH APPEARS TO LIFT
OUT WITH THE FLOW BECOMING CONFLUENT SO EXPECT COVERAGE WILL DIMINISH
BECAUSE OF THE LACK OF UPPER-LEVEL LIFT.

PLAN TO CUT THE GUIDANCE CONSENSUS HIGHS SLIGHTLY BECAUSE OF
CLOUDINESS AND RAISE THE LOWS SLIGHTLY BECAUSE OF MIXING AND THE
TROPICAL MOISTURE TODAY THROUGH WEDNESDAY NIGHT.
&&

.LONG TERM (FRIDAY THROUGH MONDAY)...
THE GFS SHOWS AN ONSHORE FLOW AND ALSO A COASTAL TROUGH DURING THE
PERIOD. PLAN TO USE THE MEX POPS AND TEMPERATURES.
&&

.AVIATION...
SOUTHEAST LOW-LEVEL FLOW ADVECTING MOISTURE INTO THE REGION.
GENERALLY EXPECT MVFR THROUGH THE PERIOD AS THE REMNANTS OF THE
TROPICAL SYSTEM MOVE NORTHWARD.
&&

.FIRE WEATHER
TODAY     SE 13 1000
WEDNESDAY SE 14 1200
&&

.PRELIMINARY POINT TEMPS/POPS...
COLUMBIA     81  74  84  74 / 100 100  80  50
AUGUSTA      81  74  82  74 / 100 100  80  40
SUMTER       81  74  84  73 / 100 100  80  50
ORANGEBURG   82  74  84  74 / 100 100  80  40
&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...FLOOD WATCH TODAY AND TONIGHT...LAKE WIND ADVISORY TODAY
GA...FLOOD WATCH TODAY AND TONIGHT...LAKE WIND ADVISORY TODAY
&&

05/05

In the hours before

Local storm report, Sep 7, 5:55 AM EDT, 3 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
555 AM EDT TUE SEP 07 2004

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

0446 AM     TORNADO          4 SW EASTOVER           33.84N 80.75W
09/07/2004                   RICHLAND           SC   COUNTY OFFICIAL

            POSSIBLE TOUCHDOWN ON VALLEY DOWNS ROAD NEAR THE CITY OF
            GADSDEN...NO FURTHER INFORMATION AT THIS TIME.

&&

JDB

Local storm report, Sep 7, 6:03 AM EDT, 3 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
603 AM EDT TUE SEP 07 2004

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

0525 AM     TORNADO          2 SE FOREST ACRES       34.01N 80.95W
09/07/2004                   RICHLAND           SC   OTHER FEDERAL

            MILITARY POLICE REPORTED A TORNADO TOUCHDOWN ON FORT
            JACKSON. STRUCTURAL DAMAGE WAS REPORTED BUT DETAILS WERE
            NOT AVAILABLE.

&&

JDB

Local storm report, Sep 7, 6:26 AM EDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT ... CORRECTION
NATIONAL WEATHER SERVICE COLUMBIA SC
626 AM EDT TUE SEP 07 2004

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

0446 AM     TORNADO          4 SW EASTOVER           33.84N 80.75W
09/07/2004                   RICHLAND           SC   COUNTY OFFICIAL

            *** 3 INJ *** TORNADO TOUCHDOWN ON VALLEY DOWNS ROAD NEAR
            THE CITY OF GADSDEN. STRUCTURAL DAMAGE TO HOME.

0525 AM     TORNADO          2 SE FOREST ACRES       34.01N 80.95W
09/07/2004                   RICHLAND           SC   OTHER FEDERAL

            MILITARY POLICE REPORTED A TORNADO TOUCHDOWN ON FORT
            JACKSON. STRUCTURAL DAMAGE TO HOMES AND SEVERAL TREES
            UPROOTED AND POWER LINES DOWN. MINOR STREET FLOODING WAS
            ALSO REPORTED

&&

JDB

Local storm report, Sep 7, 8:23 AM EDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
823 AM EDT TUE SEP 07 2004

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

0655 AM     TORNADO          BARNWELL                33.24N 81.37W
09/07/2004                   BARNWELL           SC   LAW ENFORCEMENT

            UTIILITY POLE DOWN AND STREET SIGNS DAMAGED IN BARNWELL

0812 AM     FLOOD            COLUMBIA                34.04N 80.89W
09/07/2004                   RICHLAND           SC   BROADCAST MEDIA

            3.2 INCHES OF RAIN REPORTED NEAR THE VA HOSPITAL BY JIM
            GANDY, WIS-TV METEOROLOGIST

&&

TTH

Local storm report, Sep 7, 9:13 AM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
913 AM EDT TUE SEP 07 2004

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

0840 AM     TORNADO          3 SW BISHOPVILLE        34.19N 80.29W
09/07/2004                   LEE                SC   TRAINED SPOTTER

            SPOTTER REPORTED TREES DOWN AND DAMAGE TO MOBILE HOME
            FROM TORNADO IN MANVILLE NEAR INTERSECTION OF US15 AND SC
            HIGHWAY 441.

0905 AM     FLASH FLOOD      3 SW BISHOPVILLE        34.19N 80.29W
09/07/2004                   LEE                SC   TRAINED SPOTTER

            SPOTTER REPORTED TORNADO ON THE GROUND NEAR INTERSECTION
            OF SC HIGHWAY 441 AND SPRING HILL ROAD.

&&

TTH

Local storm report, Sep 7, 9:13 AM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
913 AM EDT TUE SEP 07 2004

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

0840 AM     TORNADO          3 SW BISHOPVILLE        34.19N 80.29W
09/07/2004                   LEE                SC   TRAINED SPOTTER

            SPOTTER REPORTED TREES DOWN AND DAMAGE TO MOBILE HOME
            FROM TORNADO IN MANVILLE NEAR INTERSECTION OF US15 AND SC
            HIGHWAY 441.

0905 AM     TORNADO          3 SW BISHOPVILLE        34.19N 80.29W
09/07/2004                   LEE                SC   TRAINED SPOTTER

            SPOTTER REPORTED TORNADO ON THE GROUND NEAR INTERSECTION
            OF SC HIGHWAY 441 AND SPRING HILL ROAD.

&&

TTH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 3:08 AM EDT	Tornado Warning	CAE	Calhoun	37 min
Sep 7, 3:21 AM EDT	Tornado Warning	CAE	Orangeburg	39 min
Sep 7, 4:23 AM EDT	Tornado Warning	CAE	Calhoun	22 min
Sep 7, 4:29 AM EDT	Tornado Warning	CAE	Orangeburg	31 min
Sep 7, 4:38 AM EDT	Tornado Warning	CAE	Richland	37 min
Sep 7, 5:23 AM EDT	Tornado Warning	CAE	Richland	22 min
Sep 7, 6:07 AM EDT	Tornado Warning	CAE	Richland	38 min
Sep 7, 6:12 AM EDT	Tornado Warning	CAE	Barnwell	48 min
Sep 7, 6:47 AM EDT	Flash Flood Warning	CAE	Calhoun, Richland	3 hr
Sep 7, 7:07 AM EDT	Tornado Warning	CAE	Aiken	23 min
Sep 7, 7:44 AM EDT	Tornado Warning	CAE	Clarendon	21 min
Sep 7, 8:27 AM EDT	Tornado Warning	CAE	Sumter	18 min
Sep 7, 8:30 AM EDT	Tornado Warning	CAE	Lee, Sumter	30 min
Sep 7, 9:03 AM EDT	Tornado Warning	CAE	Kershaw, Lee	42 min
Sep 7, 9:37 AM EDT	Tornado Warning	CAE	Calhoun, Orangeburg	23 min
Sep 7, 9:55 AM EDT	Tornado Warning	CAE	Sumter	50 min
Sep 7, 10:34 AM EDT	Tornado Warning	CAE	Lancaster	41 min
Sep 7, 11:05 AM EDT	Tornado Warning	CAE	Kershaw	25 min
Sep 7, 12:33 PM EDT	Tornado Warning	CAE	Orangeburg	27 min
Sep 7, 12:34 PM EDT	Tornado Warning	CAE	Orangeburg	26 min
Sep 7, 3:31 PM EDT	Tornado Warning	CAE	Chesterfield	44 min
Sep 7, 4:07 PM EDT	Tornado Warning	CAE	Bamberg	38 min
Sep 7, 5:55 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	20 min
Sep 7, 6:11 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun	19 min

Nearby

Tornado Warnings in South Carolina, 2004 Every tornado warning in 2004 Tornadoes in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.