Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 33, NWS Charleston, SC

April 3, 2017Berkeley County, Charleston County, Dorchester County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Apr 3, 2017, 6:36 PM EDT for Berkeley County, Charleston County, Dorchester County, South Carolina. It was in force for 54 min. 2 reports 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: Apr 3, 2017, 6:36 PM EDT (22:36 UTC)
Expired: Apr 3, 2017, 7:30 PM EDT
In force: 54 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Berkeley County, SC, Charleston County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 130 km from the middle of the area, began a volume at 22:37 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
Apr 3, 6:50 PM EDT	HAIL 0.25	Downtown Charleston, SC	MULTIPLE REPORTS RECEIVED THROUGH SOCIAL MEDIA OF PEA SIZED HAIL IN DOWNTOWN CHARLESTON.
Apr 3, 7:06 PM EDT	HAIL 0.75	Mount Pleasant Towne Ce, SC	A REPORT WAS RECEIVED THROUGH TWITTER OF DIME TO PENNY SIZED HAIL NEAR THE ISLE OF PALMS CONNECTOR.

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
Apr 3, 4:36 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.6 hours before the alert went out and 31 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1059 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

819 
WUUS52 KCHS 032236
SVRCHS
SCC015-019-035-032330-
/O.NEW.KCHS.SV.W.0033.170403T2236Z-170403T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
636 PM EDT MON APR 3 2017

The National Weather Service in Charleston has issued a

* Severe Thunderstorm Warning for portions of...
  Charleston County in southeastern South Carolina...
  Berkeley County in southeastern South Carolina...
  Dorchester County in southeastern South Carolina...

* Until 730 PM EDT

* At 636 PM EDT, a severe thunderstorm was located 7 miles south of
  Magnolia Gardens, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Charleston, North Charleston, Mount Pleasant, Goose Creek, Hanahan,
  McClellanville, Middleton Place and Downtown Charleston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3298 7935 3298 7951 3290 7955 3284 7963
      3274 7983 3268 7986 3265 7989 3256 8014
      3288 8020 3321 7950 3313 7927
TIME...MOT...LOC 2236Z 247DEG 54KT 3277 8008 

HAIL...1.00IN
WIND...60MPH
 
$$

NED

5 follow-up statements

621 
WWUS52 KCHS 032244
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
644 PM EDT MON APR 3 2017

SCC015-019-035-032330-
/O.CON.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Charleston SC-Berkeley SC-Dorchester SC-
644 PM EDT MON APR 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CHARLESTON...BERKELEY AND DORCHESTER COUNTIES...

At 644 PM EDT, a severe thunderstorm was located over Charleston,
moving northeast at 60 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Charleston, North Charleston, Mount Pleasant, Goose Creek, Hanahan,
McClellanville, Downtown Charleston and Fort Sumter.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3298 7935 3298 7951 3290 7955 3284 7963
      3274 7983 3265 7989 3260 8003 3292 8011
      3321 7950 3313 7927
TIME...MOT...LOC 2244Z 247DEG 54KT 3282 7994 

HAIL...1.00IN
WIND...60MPH
 
$$

NED

590 
WWUS52 KCHS 032301
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
701 PM EDT MON APR 3 2017

SCC035-032311-
/O.CAN.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Dorchester SC-
701 PM EDT MON APR 3 2017

...THE SEVERE THUNDERSTORM WARNING FOR DORCHESTER COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
southeastern South Carolina.

LAT...LON 3298 7935 3298 7951 3290 7955 3284 7963
      3274 7983 3291 7994 3304 7985 3321 7950
      3313 7927
TIME...MOT...LOC 2301Z 238DEG 41KT 3284 7981 

$$

SCC015-019-032330-
/O.CON.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Charleston SC-Berkeley SC-
701 PM EDT MON APR 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CHARLESTON AND BERKELEY COUNTIES...

At 701 PM EDT, a severe thunderstorm was located near Mount Pleasant,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Charleston, Mount Pleasant, McClellanville, Isle Of Palms, Sullivan's
Island, Awendaw, Boone Hall Plantation and Garris Landing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3298 7935 3298 7951 3290 7955 3284 7963
      3274 7983 3291 7994 3304 7985 3321 7950
      3313 7927
TIME...MOT...LOC 2301Z 238DEG 41KT 3284 7981 

HAIL...1.00IN
WIND...60MPH
 
$$

NED

814 
WWUS52 KCHS 032312
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
712 PM EDT MON APR 3 2017

SCC015-019-032330-
/O.CON.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Charleston SC-Berkeley SC-
712 PM EDT MON APR 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CHARLESTON AND BERKELEY COUNTIES...

At 712 PM EDT, a severe thunderstorm was located 14 miles northeast
of Mount Pleasant, moving northeast at 50 mph.

HAZARD...60 mph wind gusts and penny size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Mount Pleasant, McClellanville, Isle Of Palms, Awendaw, Garris
Landing, Mount Pleasant Regional Airport, Price Inlet and Bull
Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3298 7935 3298 7951 3290 7955 3284 7963
      3278 7975 3293 7981 3302 7978 3321 7950
      3313 7927
TIME...MOT...LOC 2312Z 247DEG 43KT 3290 7965 

HAIL...0.75IN
WIND...60MPH
 
$$

NED

506 
WWUS52 KCHS 032319
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
719 PM EDT MON APR 3 2017

SCC015-032328-
/O.CAN.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Berkeley SC-
719 PM EDT MON APR 3 2017

...THE SEVERE THUNDERSTORM WARNING FOR BERKELEY COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
southeastern South Carolina.

LAT...LON 3307 7931 3298 7935 3298 7951 3290 7955
      3284 7963 3281 7970 3290 7968 3303 7963
      3320 7947 3313 7927
TIME...MOT...LOC 2318Z 265DEG 33KT 3307 7944 

$$

SCC019-032330-
/O.CON.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Charleston SC-
719 PM EDT MON APR 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CHARLESTON COUNTY...

At 718 PM EDT, a severe thunderstorm was located over McClellanville,
moving east at 40 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
McClellanville, Awendaw, Garris Landing, Cape Island, Price Inlet,
Bull Island, Lighthouse Island and Cape Romain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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

&&

LAT...LON 3307 7931 3298 7935 3298 7951 3290 7955
      3284 7963 3281 7970 3290 7968 3303 7963
      3320 7947 3313 7927
TIME...MOT...LOC 2318Z 265DEG 33KT 3307 7944 

HAIL...<.75IN
WIND...60MPH
 
$$

NED

921 
WWUS52 KCHS 032327
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
727 PM EDT MON APR 3 2017

SCC019-032337-
/O.EXP.KCHS.SV.W.0033.000000T0000Z-170403T2330Z/
Charleston SC-
727 PM EDT MON APR 3 2017

...THE SEVERE THUNDERSTORM WARNING FOR CHARLESTON COUNTY WILL EXPIRE
AT 730 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.  However gusty winds
AND heavy rain are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
southeastern South Carolina.

LAT...LON 3307 7931 3298 7935 3298 7951 3290 7955
      3284 7963 3281 7970 3290 7968 3303 7963
      3320 7947 3313 7927
TIME...MOT...LOC 2327Z 247DEG 54KT 3312 7931 

$$

NED

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 3:36 AM EDT	Rip Current Statement	CHS		16 hr
Apr 3, 3:37 AM EDT	Lake Wind Advisory	CHS	Berkeley	19 hr
Apr 3, 4:18 PM EDT	Severe Thunderstorm Warning	CHS	Allendale	31 min
Apr 3, 4:31 PM EDT	Severe Thunderstorm Warning	CHS	Allendale, Hampton	59 min
Apr 3, 4:41 PM EDT	Tornado Warning	CHS	Hampton	24 min
Apr 3, 4:56 PM EDT	Severe Thunderstorm Warning	CHS	Hampton, Jasper	49 min
Apr 3, 4:59 PM EDT	Severe Thunderstorm Warning	CHS	Colleton	61 min
Apr 3, 5:36 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	36 min
Apr 3, 5:46 PM EDT	Severe Thunderstorm Warning	CHS	Dorchester	33 min
Apr 3, 5:56 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Dorchester	31 min
Apr 3, 6:08 PM EDT	Special Marine Warning	CHS		97 min
Apr 3, 6:10 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	65 min
Apr 3, 6:15 PM EDT	Special Weather Statement	CHS	Charleston	30 min
Apr 3, 6:23 PM EDT	Special Weather Statement	CHS	Charleston	37 min
Apr 3, 6:29 PM EDT	Special Marine Warning	CHS		91 min
Apr 3, 6:46 PM EDT	Special Marine Warning	CHS		89 min
Apr 3, 7:06 PM EDT	Special Marine Warning	CHS		84 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.