Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 9, NWS Charleston, SC

March 27, 2011Hampton County, Jasper County, South Carolina; Effingham County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Mar 27, 2011, 1:48 PM EDT for Hampton County, Jasper County, South Carolina; Effingham County, Georgia. It was in force for 26 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: Mar 27, 2011, 1:48 PM EDT (17:48 UTC)
Expired: Mar 27, 2011, 2:14 PM EDT
In force: 26 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

Counties Effingham County, GA, Hampton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 31 km from the middle of the area, began a volume at 17:49 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
Mar 27, 1:55 PM EDT	TSTM WND DMG	5 Nw Clyo, GA	ONE TREE DOWN ON POWERLINES ALONG CLYO-KILDARE ROAD.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 27, 9:55 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 5.8 hours before the alert went out and 132 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: 13 J/kg
Mixed-layer CIN: -277 J/kg
Mixed-layer LCL: 1146 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 290 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.

361 
WUUS52 KCHS 271748
SVRCHS
GAC103-SCC049-053-271845-
/O.NEW.KCHS.SV.W.0009.110327T1748Z-110327T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
148 PM EDT SUN MAR 27 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN EFFINGHAM COUNTY IN SOUTHEAST GEORGIA...
  SOUTHWESTERN HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
  WEST CENTRAL JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 245 PM EDT

* AT 144 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR SHAWNEE...MOVING EAST AT 45 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...
  PING PONG SIZE HAIL...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  SHAWNEE...KILDARE...CLYO...GARNETT...TARBORO...ROBERTVILLE...
  TARBORO...TILLMAN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024.

&&

LAT...LON 3260 8139 3261 8140 3263 8113 3238 8109
      3240 8150 3253 8150
TIME...MOT...LOC 1748Z 266DEG 37KT 3250 8139

$$

1 follow-up statement

528 
WWUS52 KCHS 271814
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
214 PM EDT SUN MAR 27 2011

GAC103-SCC049-053-271824-
/O.CAN.KCHS.SV.W.0009.000000T0000Z-110327T1845Z/
EFFINGHAM GA-HAMPTON SC-JASPER SC-
214 PM EDT SUN MAR 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL JASPER...
SOUTHWESTERN HAMPTON AND NORTHERN EFFINGHAM COUNTIES HAS BEEN
CANCELLED...

AT 211 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED
THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT SUNDAY
AFTERNOON FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

LAT...LON 3260 8139 3261 8140 3263 8113 3238 8109
      3240 8150 3253 8150
TIME...MOT...LOC 1814Z 266DEG 37KT 3252 8107

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 8:14 PM EDT	Severe Thunderstorm Warning	CHS	Hampton, Jasper	61 min
Mar 26, 9:22 PM EDT	Special Weather Statement	CHS	Beaufort	38 min
Mar 27, 9:20 AM EDT	Special Weather Statement	CHS	Berkeley	40 min
Mar 27, 9:29 AM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Dorchester	48 min
Mar 27, 10:09 AM EDT	Special Weather Statement	CHS	Berkeley	66 min
Mar 27, 12:52 PM EDT	Special Weather Statement	CHS	Jasper	53 min
Mar 27, 12:57 PM EDT	Severe Thunderstorm Warning	CHS	Jasper	45 min
Mar 27, 1:29 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Jasper	45 min
Mar 27, 1:57 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort	63 min
Mar 27, 2:58 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	62 min
Mar 27, 3:26 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort	33 min
Mar 27, 4:02 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	58 min
Mar 27, 4:11 PM EDT	Severe Thunderstorm Warning	CHS	Jasper	64 min
Mar 27, 4:53 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	48 min
Mar 26, 8:18 PM EDT	Special Weather Statement	CHS	Bulloch	42 min
Mar 27, 11:18 AM EDT	Special Weather Statement	CHS	Jenkins	27 min
Mar 27, 11:47 AM EDT	Special Weather Statement	CHS	Screven	43 min
Mar 27, 1:28 PM EDT	Special Weather Statement	CHS	Effingham	32 min
Mar 27, 1:41 PM EDT	Special Marine Warning	CHS		2 hr
Mar 27, 1:41 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler	64 min
Mar 27, 1:46 PM EDT	Special Weather Statement	CHS	Burke	29 min
Mar 27, 2:13 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Effingham, Screven	62 min
Mar 27, 2:26 PM EDT	Special Marine Warning	CHS		64 min
Mar 27, 2:32 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Evans, Tattnall	58 min
Mar 27, 2:41 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Chatham, Effingham	64 min
Mar 27, 3:05 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Effingham, Evans	55 min
Mar 27, 3:12 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Chatham, Effingham, Evans, Liberty	63 min
Mar 27, 3:20 PM EDT	Special Weather Statement	CHS	McIntosh	25 min
Mar 27, 3:33 PM EDT	Special Marine Warning	CHS		117 min
Mar 27, 3:38 PM EDT	Special Weather Statement	CHS	McIntosh	37 min
Mar 27, 3:45 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Evans, Liberty, Long, Tattnall	60 min
Mar 27, 3:48 PM EDT	Special Marine Warning	CHS		48 min
Mar 27, 4:20 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Evans, Tattnall	34 min
Mar 27, 4:26 PM EDT	Special Weather Statement	CHS	Long	34 min
Mar 27, 4:37 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Evans, Liberty, Long, Tattnall	53 min
Mar 27, 4:46 PM EDT	Areal Flood Advisory	CHS	Chatham	89 min
Mar 27, 4:57 PM EDT	Special Marine Warning	CHS		59 min
Mar 27, 5:09 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Effingham, Liberty	31 min
Mar 27, 5:14 PM EDT	Special Weather Statement	CHS	Long	31 min
Mar 27, 5:52 PM EDT	Special Weather Statement	CHS	Liberty, Long	23 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning in 2011

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.