Alert archive / South Carolina / Tornado Warnings in 2009

Tornado Warning 17, NWS Columbia, SC

May 28, 2009Chesterfield County, Kershaw County, South Carolina

NWS Columbia, SC issued this tornado warning at May 28, 2009, 8:07 PM EDT for Chesterfield County, Kershaw County, South Carolina. It was in force for 38 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
May 28, 2009, 8:07 PM EDT (00:07 UTC)
Expired
May 28, 2009, 8:45 PM EDT
In force
38 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon

Counties Chesterfield County, SC, Kershaw County, SC

The radar

The Columbia radar (KCAE), 113 km from the middle of the area, began a volume at 00:07 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.1 hours before the alert went out and 173 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, Greensboro/Hi Pt, NC at 00:00Z on 2009-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 146 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2009-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.19395878Sfc1 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
146 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-2 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.

000 
WFUS52 KCAE 290007
TORCAE
SCC025-055-290045-
/O.NEW.KCAE.TO.W.0017.090529T0007Z-090529T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
807 PM EDT THU MAY 28 2009

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  CHESTERFIELD COUNTY IN CENTRAL SOUTH CAROLINA
  NORTHEASTERN KERSHAW COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 845 PM EDT

* AT 805 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO JUST WEST
  OF MCBEE. MOVEMENT WAS EAST-NORTHEAST NEAR 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  THE AREA NEAR MCBEE...AND THE AREA JUST NORTH AND NORTHWEST
  OF MCBEE.
  

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

LAT...LON 3449 8003 3439 8035 3456 8041 3478 8002
      3452 7989
TIME...MOT...LOC 0006Z 235DEG 17KT 3453 8035

$$
3 follow-up statements
000 
WWUS52 KCAE 290012
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
812 PM EDT THU MAY 28 2009

SCC025-055-290045-
/O.CON.KCAE.TO.W.0017.000000T0000Z-090529T0045Z/
CHESTERFIELD SC-KERSHAW SC-
812 PM EDT THU MAY 28 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR KERSHAW
AND CHESTERFIELD COUNTIES...

AT 808 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LIKELY TORNADO.  THIS TORNADO WAS MOVING TOWARD
THE AREA BETWEEN MCBEE AND ANGELUS...AND THE STATE ROAD
145 AREA NORTH OF MCBEE. THE TOWN OF MCBEE MAY ALSO BE THREATENED.

MOVEMENT WAS GENERALLY EAST-NORTHEAST NEAR 15 MPH.

A SMALL INTERIOR ROOM USUALLY OFFER THE BEST PROTECTION
FROM TORNADOES. GET UNDER SOMETHING STURDY.

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

LAT...LON 3449 8003 3439 8035 3456 8041 3478 8002
      3452 7989
TIME...MOT...LOC 0009Z 235DEG 17KT 3454 8034

$$
000 
WWUS52 KCAE 290028
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
828 PM EDT THU MAY 28 2009

SCC055-290035-
/O.CAN.KCAE.TO.W.0017.000000T0000Z-090529T0045Z/
KERSHAW SC-
828 PM EDT THU MAY 28 2009

...THE TORNADO WARNING FOR KERSHAW COUNTY IS CANCELLED...

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

LAT...LON 3449 8003 3444 8030 3458 8034 3478 8002
      3452 7989
TIME...MOT...LOC 0025Z 235DEG 17KT 3458 8027

$$

SCC025-290045-
/O.CON.KCAE.TO.W.0017.000000T0000Z-090529T0045Z/
CHESTERFIELD SC-
828 PM EDT THU MAY 28 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
CHESTERFIELD COUNTY...

AT 825 PM EDT...RADAR SHOWED THE STRONGEST ROTATION NORTH
OF MCBEE IN THE STATE ROAD 145 AREA. MOVEMENT WAS
EAST NEAR 15 MPH. THE AREA FROM JUST NORTHWEST OF
MCBEE TO NEAR PATRICK IS MOST THREATENED BY THIS STORM. 

A SMALL INTERIOR ROOM USUALLY OFFER THE BEST PROTECTION
FROM TORNADOES. GET UNDER SOMETHING STURDY.

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

LAT...LON 3449 8003 3444 8030 3458 8034 3478 8002
      3452 7989
TIME...MOT...LOC 0025Z 235DEG 17KT 3458 8027

$$
000 
WWUS52 KCAE 290044
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
844 PM EDT THU MAY 28 2009

SCC025-290051-
/O.EXP.KCAE.TO.W.0017.000000T0000Z-090529T0045Z/
CHESTERFIELD SC-
844 PM EDT THU MAY 28 2009

...THE TORNADO WARNING FOR CHESTERFIELD COUNTY EXPIRES AT 845 PM
EDT...

RADAR HAS SHOWN A DIMINISHING TREND. THE TORNADO WARNING FOR
CHESTERFIELD COUNTY EXPIRES AT 845 PM.  

LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS. 

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

LAT...LON 3449 8003 3444 8030 3458 8034 3478 8002
      3452 7989
TIME...MOT...LOC 0041Z 235DEG 17KT 3462 8019

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:35 AM EDTRiver Flood AdvisoryCAEKershaw25 hr
May 29, 2:29 PM EDTRiver Flood AdvisoryCAEChesterfield, Marlboro30 hr
May 29, 6:06 PM EDTSevere Thunderstorm WarningCAEClarendon54 min
May 29, 6:58 PM EDTSevere Thunderstorm WarningCAECalhoun, Orangeburg37 min

Nearby

Tornado Warnings in South Carolina, 2009Every tornado warning in 2009Tornadoes in 2009

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.