Alert archive / South Carolina / Tornado Warnings in 2021

Tornado Warning 10, NWS Charleston, SC

July 8, 2021Berkeley County, Charleston County, South Carolina

NWS Charleston, SC issued this tornado warning at Jul 8, 2021, 2:49 AM EDT for Berkeley County, Charleston County, South Carolina. It was in force for 26 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
Jul 8, 2021, 2:49 AM EDT (06:49 UTC)
Expired
Jul 8, 2021, 3:15 AM EDT
In force
26 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Berkeley County, SC, Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 110 km from the middle of the area, began a volume at 06:53 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 7, 7:25 PM EDTTornado WatchSPC11 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 6.8 hours before the alert went out and 19 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, Charleston AFB, SC at 00:00Z on 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1185 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
1185 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

063 
WFUS52 KCHS 080649
TORCHS
SCC015-019-080715-
/O.NEW.KCHS.TO.W.0010.210708T0649Z-210708T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
249 AM EDT Thu Jul 8 2021

The National Weather Service in Charleston has issued a

* Tornado Warning for portions of...
  Charleston County in southeastern South Carolina...
  Berkeley County in southeastern South Carolina...

* Until 315 AM EDT.
    
* At 248 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Fort Johnson, moving north at 55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  North Charleston, Mount Pleasant, Goose Creek, Hanahan, Downtown
  Charleston, Daniel Island, Fort Sumter, Isle Of Palms, Folly Beach,
  Sullivan's Island, Boone Hall Plantation, Sullivans Island, Fort
  Johnson, Don Holt Bridge and Mount Pleasant Towne Centre.

This warning includes the following interstates:
 I-26 between mile markers 219 and 221.
 I-526 between mile markers 22 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes from tropical storms or hurricanes can form and move very
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a tornado
it could be too late. Take action now to immediately protect
yourself.

&&

LAT...LON 3274 7981 3273 7985 3267 7986 3266 7986
      3266 7992 3291 7998 3292 7996 3293 7978
TIME...MOT...LOC 0648Z 181DEG 47KT 3276 7988 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
1 follow-up statement
738 
WFUS52 KCHS 080651
TORCHS
SCC015-019-080715-
/O.NEW.KCHS.TO.W.0010.210708T0651Z-210708T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
Issued by National Weather Service Wilmington NC
251 AM EDT Thu Jul 8 2021

The National Weather Service in Charleston has issued a

* Tornado Warning for portions of...
  Central Charleston County in southeastern South Carolina...
  South central Berkeley County in southeastern South Carolina...

* Until 315 AM EDT.
    
* At 251 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Fort Sumter, moving north at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  North Charleston, Mount Pleasant, Goose Creek, Hanahan, Naval
  Weapons Station Charleston, Downtown Charleston, Daniel Island and
  Fort Sumter.

This warning includes I-526 between mile markers 22 and 31.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3313 7974 3280 7976 3274 7982 3273 7984
      3271 7985 3265 7991 3314 8004
TIME...MOT...LOC 0651Z 181DEG 37KT 3276 7987 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 9:03 PM EDTSpecial Marine WarningCHS117 min
Jul 7, 9:23 PM EDTAreal Flood AdvisoryCHSJasper82 min
Jul 7, 10:39 PM EDTAreal Flood AdvisoryCHSBeaufort, Jasper81 min
Jul 7, 10:46 PM EDTSpecial Marine WarningCHS89 min
Jul 7, 10:58 PM EDTSpecial Marine WarningCHS32 min
Jul 7, 11:23 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Jasper67 min
Jul 7, 11:39 PM EDTTornado WarningCHSBeaufort, Jasper36 min
Jul 7, 11:48 PM EDTSpecial Marine WarningCHS87 min
Jul 8, 12:10 AM EDTAreal Flood AdvisoryCHSBeaufort, Charleston, Colleton, Hampton, Jasper3 hr
Jul 8, 12:23 AM EDTTornado WarningCHSBeaufort, Colleton37 min
Jul 8, 12:49 AM EDTSpecial Marine WarningCHS56 min
Jul 8, 12:57 AM EDTSpecial Marine WarningCHS93 min
Jul 8, 12:59 AM EDTTornado WarningCHSCharleston31 min
Jul 8, 1:08 AM EDTAreal Flood AdvisoryCHSBerkeley, Charleston5 hr
Jul 8, 1:36 AM EDTTornado WarningCHSCharleston24 min
Jul 8, 1:50 AM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Colleton, Dorchester115 min
Jul 8, 1:54 AM EDTSpecial Marine WarningCHS2 hr
Jul 8, 2:13 AM EDTSpecial Weather StatementCHSColleton32 min
Jul 8, 2:21 AM EDTSpecial Marine WarningCHS114 min
Jul 8, 2:23 AM EDTTornado WarningCHSCharleston37 min
Jul 8, 2:30 AM EDTSpecial Marine WarningCHS78 min
Jul 8, 3:08 AM EDTTornado WarningCHSBerkeley39 min
Jul 8, 3:16 AM EDTTornado WarningCHSBerkeley, Charleston14 min
Jul 8, 3:36 AM EDTSpecial Weather StatementCHSDorchester24 min
Jul 8, 3:58 AM EDTSpecial Weather StatementCHSDorchester32 min
Jul 8, 4:05 AM EDTSpecial Marine WarningCHS85 min
Jul 8, 4:16 AM EDTTornado WarningCHSBerkeley, Charleston44 min
Jul 8, 8:05 AM EDTSmall Craft AdvisoryCHS14 hr

Nearby

Tornado Warnings in South Carolina, 2021Every tornado warning in 2021Tornadoes in 2021

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.