Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 11, NWS Charleston, SC

April 5, 2017Berkeley County, Dorchester County, South Carolina

NWS Charleston, SC issued this tornado warning at Apr 5, 2017, 3:38 PM EDT for Berkeley County, Dorchester 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
Apr 5, 2017, 3:38 PM EDT (19:38 UTC)
Expired
Apr 5, 2017, 4:15 PM EDT
In force
37 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Berkeley County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 92 km from the middle of the area, began a volume at 19:43 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
Apr 5, 12:54 PM EDTTornado Watch PDSSPC10 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.6 hours before the alert went out and 52 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 12:00Z on 2017-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 626 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, Charleston AFB, SC at 12:00Z on 2017-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897Sfc1 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
626 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

306 
WFUS52 KCHS 051938
TORCHS
SCC015-035-052015-
/O.NEW.KCHS.TO.W.0011.170405T1938Z-170405T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
338 PM EDT WED APR 5 2017

The National Weather Service in Charleston has issued a

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

* Until 415 PM EDT
    
* At 338 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Saint George, moving northeast at 35 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...
  Saint George, Indian Field, Dorchester, St. George, Harleyville and
  Reevesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.

&&

LAT...LON 3320 8014 3308 8058 3321 8066 3331 8050
      3328 8049 3326 8043 3327 8039 3326 8036
      3328 8035 3327 8030 3330 8025 3335 8024
      3338 8024
TIME...MOT...LOC 1938Z 243DEG 31KT 3318 8059 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
3 follow-up statements
813 
WWUS52 KCHS 051950
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
350 PM EDT WED APR 5 2017

SCC015-035-052015-
/O.CON.KCHS.TO.W.0011.000000T0000Z-170405T2015Z/
Berkeley SC-Dorchester SC-
350 PM EDT WED APR 5 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR BERKELEY
AND DORCHESTER COUNTIES...
    
At 350 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Indian Field, moving northeast at 35 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...
Harleyville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.

&&

LAT...LON 3320 8014 3313 8050 3324 8055 3327 8049
      3326 8043 3327 8039 3326 8036 3328 8035
      3327 8030 3330 8025 3335 8024 3338 8024
TIME...MOT...LOC 1950Z 243DEG 32KT 3322 8048 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
400 
WWUS52 KCHS 051959
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
359 PM EDT WED APR 5 2017

SCC015-035-052015-
/O.CON.KCHS.TO.W.0011.000000T0000Z-170405T2015Z/
Berkeley SC-Dorchester SC-
359 PM EDT WED APR 5 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR BERKELEY
AND DORCHESTER COUNTIES...
    
At 358 PM EDT, a severe thunderstorm capable of producing a tornado
was located 9 miles east of Indian Field, moving northeast at 50 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. 

This tornadic thunderstorm will remain over mainly rural areas of
Berkeley and Dorchester Counties, including the following locations:
Ebenezer...Sandridge...Black Creek...Hussertown...Francis Beidler
Forest and Spring Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.

&&

LAT...LON 3320 8014 3315 8040 3326 8043 3327 8039
      3326 8036 3328 8035 3327 8030 3330 8025
      3332 8021
TIME...MOT...LOC 1958Z 239DEG 42KT 3324 8038 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
187 
WWUS52 KCHS 052012
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
412 PM EDT WED APR 5 2017

SCC015-035-052022-
/O.EXP.KCHS.TO.W.0011.000000T0000Z-170405T2015Z/
Berkeley SC-Dorchester SC-
412 PM EDT WED APR 5 2017

...THE TORNADO WARNING FOR BERKELEY AND DORCHESTER COUNTIES WILL
EXPIRE AT 415 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 800 PM EDT for southeastern
South Carolina.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Charleston.

LAT...LON 3320 8014 3315 8040 3326 8043 3327 8039
      3326 8036 3328 8035 3327 8030 3330 8025
      3332 8021
TIME...MOT...LOC 2012Z 243DEG 31KT 3329 8026 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 3:37 AM EDTGale WatchCHS11 hr
Apr 5, 3:37 AM EDTSmall Craft AdvisoryCHS24 hr
Apr 5, 2:44 PM EDTWind AdvisoryCHSAllendale, Berkeley, Colleton, Dorchester, Hampton29 hr
Apr 5, 2:46 PM EDTSevere Thunderstorm WarningCHSAllendale, Colleton, Dorchester, Hampton59 min
Apr 5, 2:49 PM EDTGale WarningCHS37 hr
Apr 5, 3:11 PM EDTSpecial Weather StatementCHSHampton34 min
Apr 5, 3:28 PM EDTSevere Thunderstorm WarningCHSColleton, Hampton42 min
Apr 5, 4:19 PM EDTSpecial Weather StatementCHSBerkeley26 min
Apr 5, 5:27 PM EDTSevere Thunderstorm WarningCHSHampton63 min
Apr 5, 5:54 PM EDTSpecial Weather StatementCHSHampton36 min
Apr 5, 6:05 PM EDTSevere Thunderstorm WarningCHSJasper55 min
Apr 5, 6:47 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Hampton44 min
Apr 5, 7:23 PM EDTSevere Thunderstorm WarningCHSCharleston, Colleton, Dorchester67 min
Apr 5, 7:34 PM EDTSpecial Weather StatementCHSBeaufort26 min
Apr 5, 7:39 PM EDTSpecial Marine WarningCHS2 hr
Apr 5, 7:42 PM EDTSpecial Marine WarningCHS2 hr
Apr 5, 7:51 PM EDTSpecial Weather StatementCHSCharleston39 min
Apr 5, 7:56 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston64 min

Nearby

Tornado Warnings in South Carolina, 2017Every tornado warning in 2017Tornadoes in 2017

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.