Alert archive / South Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 28, NWS Charleston, SC

April 6, 2022Colleton County, Dorchester County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Apr 6, 2022, 7:55 PM EDT for Colleton County, Dorchester County, South Carolina. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 6, 2022, 7:55 PM EDT (23:55 UTC)
Expired: Apr 6, 2022, 8:44 PM EDT
In force: 49 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Colleton County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 59 km from the middle of the area, began a volume at 23:56 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.

Issued	Product	Office	Lasted
Apr 6, 4:21 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.9 hours before the alert went out and 50 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: 258 J/kg
Mixed-layer CIN: -193 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 6, 5:51 PM EDT, 2 hours 4 minutes earlier.

Area forecast discussion, Apr 6, 5:51 PM EDT, 2 hours 4 minutes before

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Hazardous weather outlook, Apr 6, 4:35 PM EDT, 3 hours 20 minutes before

Hazardous Weather Outlook
National Weather Service Charleston SC
435 PM EDT Wed Apr 6 2022

AMZ330-350-352-354-GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-
047>052-072045-
Charleston Harbor-
Waters from South Santee River to Edisto Beach SC out 20 NM-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-Jenkins-Screven-Candler-Bulloch-
Effingham-Tattnall-Evans-Inland Bryan-Coastal Bryan-Inland Chatham-
Coastal Chatham-Long-Inland Liberty-Coastal Liberty-Inland McIntosh-
Coastal McIntosh-Allendale-Hampton-Inland Colleton-Dorchester-
Inland Berkeley-Inland Jasper-Beaufort-Coastal Colleton-Charleston-
Coastal Jasper-Tidal Berkeley-
435 PM EDT Wed Apr 6 2022

...TORNADO WATCH 102 IN EFFECT UNTIL 11 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters,
southeast Georgia and southeast South Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

AMZ374-072045-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
435 PM EDT Wed Apr 6 2022

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Tonight.

Severe Thunderstorms: Another round of severe weather is possible
this afternoon and evening across Southeast South Carolina and
Southeast Georgia. There will be a risk for winds in excess of 35
knots, hail and even a few waterspouts.

Be ready to take action should severe weather develop. Stay tuned to
NOAA Weather Radio, TV or your local news source for the latest
information from the National Weather Service.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Please relay any reports of hazardous weather including, but not
limited to large hail, damaging winds and flooding to the National
Weather Service in Charleston at 1-888-383-2024.

In the hours before

Local storm report, Apr 6, 6:55 PM EDT, 1 hour before

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Special weather statement, Apr 6, 7:05 PM EDT, 50 minutes before

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Local storm report, Apr 6, 7:26 PM EDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
726 PM EDT WED APR 06 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0725 PM     TSTM WND DMG     HARLEYVILLE             33.21N  80.44W
04/05/2022                   DORCHESTER         SC   BROADCAST MEDIA

            TV MEDIA RELAYED A REPORT OF SOME TREE DAMAGE AT 234 E
            MAIN ST FROM A POSSIBLE TORNADO. TIME ESTIMATED.

&&

EVENT NUMBER CHS2200392

RJB

Special weather statement, Apr 6, 7:29 PM EDT, 26 minutes before

Special Weather Statement
National Weather Service Charleston SC
729 PM EDT Wed Apr 6 2022

SCZ045-070015-
Inland Berkeley-
729 PM EDT Wed Apr 6 2022

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BERKELEY COUNTY...

...MARINERS ON LAKE MOULTRIE AND EASTERN LAKE MARION SHOULD SEEK SAFE
HARBOR...

At 728 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm over Cross, or 12 miles northwest of Moncks
Corner, moving northeast at 30 mph.

HAZARD...strong winds 45 to 55 mph.

SOURCE...Radar Indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects.

Some locations in the path of this storm include...
Eadytown, Eastern Lake Marion, Cross and Northern Lake Moultrie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters on Lake Moultrie and the eastern portions of Lake Marion
should seek safe harbor immediately. If caught on the open water,
stay as low as possible and wear a personal flotation device.
Remember, if you can hear thunder you are at risk for being struck by
lightning.

A tornado watch is in effect. Thunderstorms can produce tornadoes
suddenly, sometimes with little or no warning. Be alert for rapidly
changing weather conditions and be ready to act quickly if severe
weather is observed or a warning is issued.

&&

LAT...LON 3349 7995 3347 7993 3324 8013 3331 8026
      3338 8024 3339 8022 3345 8022 3346 8015
      3345 8014 3348 8015 3350 8012 3350 8009
      3351 8008 3350 8002 3351 7999
TIME...MOT...LOC 2328Z 218DEG 25KT 3332 8017

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

BRM

Local storm report, Apr 6, 7:40 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
740 PM EDT WED APR 06 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0629 PM     HAIL             CROCKETVILLE            32.92N  81.08W
04/06/2022  E1.75 INCH       HAMPTON            SC   BROADCAST MEDIA

            BROADCAST MEDIA RELAYED REPORT VIA SOCIAL MEDIA OF
            QUARTER TO GOLF BALL SIZE HAIL IN CROCKETVILLE.

&&

EVENT NUMBER CHS2200393

CPM

Local storm report, Apr 6, 7:42 PM EDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
742 PM EDT WED APR 06 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0746 PM     TSTM WND DMG     3 N WADMALAW ISLAND     32.72N  80.16W
04/05/2022                   CHARLESTON         SC   BROADCAST MEDIA

            AT LEAST ONE DOWNED TREE AT RESIDENCE ALONG CHISHOLM
            RD. TIME ESTIMATED.

&&

EVENT NUMBER CHS2200394

RJB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 9:14 PM EDT	Special Marine Warning	CHS		31 min
Apr 5, 10:02 PM EDT	Special Marine Warning	CHS		118 min
Apr 6, 2:53 PM EDT	River Flood Warning	CHS	Berkeley, Georgetown, Williamsburg	23 days
Apr 6, 2:56 PM EDT	Small Craft Advisory	CHS		31 hr
Apr 6, 4:30 PM EDT	Special Weather Statement	CHS	Berkeley	45 min
Apr 6, 4:54 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley	66 min
Apr 6, 5:07 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Dorchester	53 min
Apr 6, 5:09 PM EDT	Tornado Warning	CHS	Berkeley	36 min
Apr 6, 5:29 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton	61 min
Apr 6, 5:43 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	62 min
Apr 6, 5:54 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton, Jasper	66 min
Apr 6, 6:04 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley	56 min
Apr 6, 6:21 PM EDT	Severe Thunderstorm Warning	CHS	Dorchester	39 min
Apr 6, 6:35 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Dorchester	55 min
Apr 6, 6:45 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton	13 min
Apr 6, 7:05 PM EDT	Special Weather Statement	CHS	Berkeley	40 min
Apr 6, 7:07 PM EDT	Severe Thunderstorm Warning	CHS	Dorchester	32 min
Apr 6, 7:29 PM EDT	Special Weather Statement	CHS	Berkeley	46 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2022 Every severe thunderstorm warning in 2022

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.