Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 2, NWS Charleston, SC

January 3, 2017Beaufort County, Charleston County, Colleton County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jan 3, 2017, 2:04 AM EST for Beaufort County, Charleston County, Colleton County, South Carolina. It was in force for 41 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
Jan 3, 2017, 2:04 AM EST (07:04 UTC)
Expired
Jan 3, 2017, 2:45 AM EST
In force
41 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Beaufort County, SC, Charleston County, SC, Colleton County, SC

The radar

The Charleston,SC radar (KCLX), 63 km from the middle of the area, began a volume at 07:07 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.

What was reported inside it

TimeReportWhereRemark
Jan 3, 2:04 AM ESTTSTM WND DMG2 Sse Gardens Corner, SCTREES DOWN NEAR THE INTERSECTION OF TRASK PARKWAY AND JASMINE HALL ROAD. TIME ESTIMATED BASED ON RADAR.

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 7.1 hours before the alert went out and 61 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 2017-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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 00:00Z on 2017-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
14 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

635 
WUUS52 KCHS 030704
SVRCHS
SCC013-019-029-030745-
/O.NEW.KCHS.SV.W.0002.170103T0704Z-170103T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
204 AM EST TUE JAN 3 2017

The National Weather Service in Charleston has issued a

* Severe Thunderstorm Warning for portions of...
  Beaufort County in southeastern South Carolina...
  Charleston County in southeastern South Carolina...
  Colleton County in southeastern South Carolina...

* Until 245 AM EST

* At 203 AM EST, a severe thunderstorm was located near Beaufort,
  moving east at 35 mph.

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

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Beaufort, Port Royal, Edisto Beach, Clarendon, Hollywood, Ravenel,
  Meggett and Bennetts Point.

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 3252 8022 3245 8032 3241 8034 3244 8041
      3241 8040 3234 8040 3233 8041 3235 8079
      3267 8078 3276 8021
TIME...MOT...LOC 0703Z 275DEG 31KT 3250 8075 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
963 
WWUS52 KCHS 030726
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
226 AM EST TUE JAN 3 2017

SCC013-019-029-030745-
/O.CON.KCHS.SV.W.0002.000000T0000Z-170103T0745Z/
Beaufort SC-Charleston SC-Colleton SC-
226 AM EST TUE JAN 3 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EST
FOR BEAUFORT...CHARLESTON AND COLLETON COUNTIES...

At 226 AM EST, severe thunderstorms were located along a line
extending from 18 miles southeast of Walterboro to 8 miles northwest
of Edisto Beach to 8 miles east of Port Royal, moving east at 50 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Beaufort, Port Royal, Edisto Beach, Clarendon, Hollywood, Ravenel,
Meggett and Bennetts Point.

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 3252 8022 3245 8032 3241 8034 3244 8041
      3241 8040 3234 8040 3233 8041 3235 8079
      3267 8078 3276 8021
TIME...MOT...LOC 0726Z 254DEG 43KT 3273 8043 3257 8044 3235 8055 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 1:51 AM ESTSpecial Weather StatementCHSBeaufort, Jasper39 min
Jan 3, 2:39 AM ESTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester49 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017Every 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.