Alert archive / South Carolina / Tornado Warnings in 2009

Tornado Warning 14, NWS Columbia, SC

May 5, 2009McCormick County, South Carolina

NWS Columbia, SC issued this tornado warning at May 5, 2009, 11:05 PM EDT for McCormick County, South Carolina. It was in force for 25 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 5, 2009, 11:05 PM EDT (03:05 UTC)
Expired
May 5, 2009, 11:30 PM EDT
In force
25 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon

County McCormick County, SC

The radar

The Greer radar (KGSP), 96 km from the middle of the area, began a volume at 03:07 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.1 hours before the alert went out and 204 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, Peachtre/Fal Fld, GA at 00:00Z on 2009-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 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, Peachtre/Fal Fld, GA at 00:00Z on 2009-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
66 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1561 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS52 KCAE 060305
TORCAE
SCC065-060330-
/O.NEW.KCAE.TO.W.0014.090506T0305Z-090506T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1105 PM EDT TUE MAY 5 2009

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN MCCORMICK COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 1130 PM EDT

* AT 1105 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MOUNT
  CARMEL...OR ABOUT 13 MILES SOUTHWEST OF ABBEVILLE...MOVING EAST AT
  15 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

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 3407 8253 3408 8247 3406 8242 3406 8233
      3401 8230 3402 8223 3401 8223 3400 8225
      3401 8225 3401 8230 3400 8230 3397 8258
      3401 8260
TIME...MOT...LOC 0306Z 275DEG 9KT 3406 8254

$$
1 follow-up statement
000 
WWUS52 KCAE 060310
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1110 PM EDT TUE MAY 5 2009

SCC065-060330-
/O.CON.KCAE.TO.W.0014.000000T0000Z-090506T0330Z/
MCCORMICK SC-
1110 PM EDT TUE MAY 5 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
MCCORMICK COUNTY...

AT 1106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LIKELY TORNADO.  THE STORM WAS JUST NORTH OF 
MOUNT CARMEL...MOVING EASTWARD NEAR 15 MPH. THE CALHOUN MILL AND
BELCHER CROSSROADS AREA IS IN THE PATH OF THIS STORM.

A SMALL INTERIOR ROOM USUALLY OFFERS THE BEST PROTECTION FROM
TORNADOES.


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 3407 8253 3408 8247 3406 8242 3406 8233
      3401 8230 3402 8223 3401 8223 3400 8225
      3401 8225 3401 8230 3400 8230 3397 8258
      3401 8260
TIME...MOT...LOC 0308Z 275DEG 9KT 3406 8253

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 11:31 PM EDTTornado WarningCAEEdgefield, McCormick44 min
May 6, 6:03 PM EDTSevere Thunderstorm WarningCAEOrangeburg27 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.