Alert archive / South Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 19, NWS Charleston, SC

April 13, 20205 counties in South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Apr 13, 2020, 7:42 AM EDT for 5 counties in South Carolina. It was in force for 63 min. 22 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 13, 2020, 7:42 AM EDT (11:42 UTC)
Expired: Apr 13, 2020, 8:45 AM EDT
In force: 63 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 100 km from the middle of the area, began a volume at 11:47 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 13, 7:42 AM EDT	TSTM WND DMG	1 Sse Moncks Corner, SC	A NEIGHBORHOOD IN MONCKS CORNER IS REPORTED TO HAVE DAMAGE TO MULTIPLE HOUSES. POSSIBLE TORNADO DAMAGE.
Apr 13, 7:42 AM EDT	TSTM WND DMG	5 S Moncks Corner, SC	POSSIBLE TORNADO. FIVE LARGE DIAMETER TREES EITHER SNAPPED OFF OR UPROOTED. TREES LEANING ON POWER LINES IN THE AREA.
Apr 13, 7:45 AM EDT	TSTM WND DMG	4 Ene Moncks Corner, SC	POSSIBLE TORNADO. HIGHWAY 402, NUMEROUS TREES DOWN, PUBLIC REPORTING DAMAGE TO SEVERAL HOMES.
Apr 13, 7:45 AM EDT	TSTM WND DMG	Moncks Corner, SC	POSSIBLE TORMADO. TWO HOMES SUSTAINED MAJOR DAMAGE ON DENNIS BLVD ON THE EAST SIDE OF MONKS CORNER.
Apr 13, 7:45 AM EDT	TSTM WND DMG	Moncks Corner, SC	TWO HOMES SUSTAINED MAJOR DAMAGE ON DENNIS BLVD ON THE EAST SIDE OF MONKS CORNER. POSSIBLE TORNADO.
Apr 13, 7:50 AM EDT	TSTM WND DMG	3 Nne Beaufort, SC	A VIDEO PROVIDED BY THE MEDIA SHOWED MULTIPLE SNAPPED TREES AND LARGE BRANCHES DOWN (4+ INCHES IN DIAMETER) AS WELL AS A SMALL BOAT FLIPPED OVER ON EAST BAJALA DRIVE. TIME ESTIMATED VIA RADAR DATA.
Apr 13, 7:53 AM EDT	TSTM WND DMG	5 Ne Beaufort, SC	OVER 10 TREES AND LARGE BRANCHES DOWN IN AND AROUND PARK SQUARE OFF COOSAW POINT BOULEVARD. TIME ESTIMATED BY RADAR.
Apr 13, 7:53 AM EDT	TSTM WND DMG	6 Ne Beaufort, SC	A TREE WAS REPORTED DOWN AT COOSAW RIVER DRIVE NEAR SAMS POINT. TIME IS ESTIMATED BY RADAR.
Apr 13, 7:55 AM EDT	TSTM WND DMG	7 N Huger, SC	SPOTTER REPORTED A 6-8 DIAMETER MAGNOLIA TREE SNAPPED OFF HALFWAY UP. SEVERAL SMALLER LIMBS DOWN AROUND THE PROPERTY. TIN ON A SMALL SHED PEELED BACK IN SOME PLACES.
Apr 13, 8:02 AM EDT	TSTM WND DMG	3 Se Jamestown, SC	A RESIDENT SENT PICTURES OF NUMEROUS TREES SNAPPED OR BLOWN DOWN IN THE 1700 BLOCK OF FRENCH SANTEE ROAD NEAR JAMESTOWN. THE RESIDENT ALSO REPORTED THAT A FENCE WAS BLOWN DOWN AND A FRONT PORCH ROOF WAS BLOWN OFF A HOME.
Apr 13, 8:15 AM EDT	TSTM WND DMG	1 Wsw Kiawah Island, SC	A TIN ROOF WAS PARTIALLY BLOWN AND LANDED IN TREES. TIME IS ESTIMATED BY RADAR.
Apr 13, 8:15 AM EDT	TSTM WND DMG	6 Sw Edisto Island, SC	MULTIPLE DAMAGED STRUCTURES AS WELL AS MULTIPLE TREES DOWN OR SNAPPED OFF IN THE 1300 BLOCK OF MYRTLE STREET ON EDISTO ISLAND. ALSO, COLLETON COUNTY FIRE-RESCUE EMERGENCY MANAGEMENT DIVISION REPORTED A TREE DOWN ON AN OCCUPIED STRUCTURE IN THE 3300 BLOCK OF PA
Apr 13, 8:15 AM EDT	TORNADO	6 Sw Edisto Island, SC	STORM SURVEY CONFIRMS EF2 TORNADO. TORNADO RIPPED OFF PORTIONS OR LARGE SECTIONS OF ROOFS OFF OF SIX HOMES. NUMEROUS TREES SNAPPED OFF AND UPROOTED ALONG THE PATH. A BOAT AND SEVERAL VEHICLES DAMAGED AND A TRAILER WAS FLIPPED OVER. NUMEROUS HOMES HAD WINDOWS B
Apr 13, 8:28 AM EDT	TORNADO	1 S Seabrook Island, SC	A NATIONAL WEATHER SERVICE STORM SURVEY TEAM HAS CONFIRMED AN EF-1 TORNADO ON SEABROOK ISLAND. THE TORNADO RESULTED IN DAMAGE ALONG A 1.25 MILE LONG PATH ON THE SOUTHWEST SIDE OF THE ISLAND. PLEASE SEE THE PUBLIC INFORMATION STATEMENT (PNS) REGARDING THIS TORN
Apr 13, 8:29 AM EDT	TSTM WND DMG	1 S Seabrook Island, SC	REPORTS OF SEVERAL LARGE TREES AND BRANCHES DOWN IN NEIGHBORHOOD STREETS AND YARDS, AS WELL AS DAMAGE TO VEHICLES DUE TO FALLEN TREES ALONG HIGH HAMMOCK ROAD, THE BENT TWIG ROAD, AND CAMP CHRISTOPHER LANE. POSSIBLE TORNADO DAMAGE. TIME ESTIMATED VIA RADAR DATA
Apr 13, 8:32 AM EDT	TSTM WND DMG	1 Wsw Kiawah Island, SC	A TIN ROOF WAS PARTIALLY BLOWN AND LANDED IN TREES. TIME IS ESTIMATED BY RADAR.
Apr 13, 8:33 AM EDT	TORNADO	2 Wsw Kiawah Island, SC	A NATIONAL WEATHER SERVICE DAMAGE SURVEY TEAM HAS CONFIRMED AN EF-1 TORNADO ON THE SOUTHWEST SIDE OF THE ISLAND. THE TORNADO RESULTED IN TREE DAMAGE ON A GOLF COURSE AND A NEIGHBORHOOD. PLEASE SEE THE PUBLIC INFORMATION STATEMENT (PNS) REGARDING THIS TORNADO F
Apr 13, 8:35 AM EDT	TSTM WND DMG	1 Wsw Kiawah Island, SC	A LIKELY DOWNBURST SNAPPED OFF TREES AND BRANCHES AND UPROOTED TREES IN AND AROUND NIGHT HERON PARK AND AN ADJACENT APARTMENT COMPLEX. AT THE APARTMENT COMPLEX A TREE FELL INTO AN APARTMENT COMPLEX BREAKING OUT SEVERAL WINDOWS, PRODUCING MINOR ROOF DAMAGE, AND
Apr 13, 8:35 AM EDT	TSTM WND DMG	2 Wsw Kiawah Island, SC	SOCIAL MEDIA REPORT OF SEVERAL LARGE TREES UPROOTED, LARGE BRANCHES DOWN, AND MINOR DAMAGE TO HOMES. MOST OF THE DAMAGE WAS BETWEEN SURFWATCH DR AND NIGHT HERON PARK. THE MOST SIGNIFICANT DAMAGE WAS AT COUGAR GOLF COURSE AND LOW OAK WOODS RD AREA.
Apr 13, 8:35 AM EDT	TSTM WND DMG	2 Wsw Kiawah Island, SC	SOCIAL MEDIA REPORT OF SEVERAL LARGE TREES UPROOTED, LARGE BRANCHES DOWN, AND MINOR DAMAGE TO HOMES ON GREEN WINGED TEAL RD ON KIAWAH.
Apr 13, 8:36 AM EDT	TSTM WND DMG	Kiawah Island, SC	A MEMBER OF THE PUBLIC REPORTED SEVERAL TREES DOWN AROUND THEIR PROPERTY ON AIRY HALL. ROOF DAMAGE WAS CAUSED BY FALLING TREES.
Apr 13, 8:51 AM EDT	TSTM WND DMG	5 Se Cainhoy, SC	TREE SNAPPED AND FELL ON CAR IN CLASSIC COURT.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 20 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 13, 3:20 AM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 11.7 hours before the alert went out and 11 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: 944 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 494 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

489 
WUUS52 KCHS 131142
SVRCHS
SCC013-015-019-029-035-131245-
/O.NEW.KCHS.SV.W.0019.200413T1142Z-200413T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
742 AM EDT Mon Apr 13 2020

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...
  Berkeley County in southeastern South Carolina...
  Dorchester County in southeastern South Carolina...

* Until 845 AM EDT.

* At 741 AM EDT, severe thunderstorms were located along a line
  extending from 7 miles southwest of Jamestown to near Magnolia
  Gardens to near Dale, moving east at 50 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  North Charleston, Mount Pleasant, Summerville, Goose Creek,
  Hanahan, Beaufort, Moncks Corner, McClellanville, Edisto Beach,
  Fort Sumter, Downtown Charleston, West Ashley, Daniel Island, Naval
  Weapons Station Charleston and Johns Island.

This warning includes...
 I-26 between mile markers 197 and 221.
 I-526 between mile markers 11 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage across the area. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows!

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

&&

LAT...LON 3299 7933 3298 7951 3289 7955 3274 7983
      3267 7986 3252 8015 3253 8021 3245 8032
      3241 8034 3244 8041 3242 8041 3247 8075
      3254 8084 3260 8083 3285 8032 3350 7996
      3332 7974 3324 7947 3316 7937 3314 7927
TIME...MOT...LOC 1141Z 257DEG 45KT 3322 7980 3286 8015 3256 8061 

HAIL...0.75IN
WIND...70MPH
 
$$

1 follow-up statement

867 
WWUS52 KCHS 131229
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
829 AM EDT Mon Apr 13 2020

SCC013-131238-
/O.CAN.KCHS.SV.W.0019.000000T0000Z-200413T1245Z/
Beaufort SC-
829 AM EDT Mon Apr 13 2020

...THE SEVERE THUNDERSTORM WARNING FOR BEAUFORT COUNTY IS
CANCELLED...
    
The immediate risk for severe weather has ended. 

LAT...LON 3299 7934 3298 7951 3289 7955 3274 7983
      3267 7986 3252 8015 3253 8021 3241 8035
      3246 8047 3252 8053 3264 8027 3285 8032
      3329 7962 3325 7953 3324 7947 3316 7937
      3314 7927
TIME...MOT...LOC 1228Z 257DEG 45KT 3335 7912 3299 7948 3269 7994 

$$

SCC015-019-029-035-131245-
/O.CON.KCHS.SV.W.0019.000000T0000Z-200413T1245Z/
Charleston SC-Colleton SC-Berkeley SC-Dorchester SC-
829 AM EDT Mon Apr 13 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR CHARLESTON...COLLETON...BERKELEY AND DORCHESTER COUNTIES...

At 828 AM EDT, severe thunderstorms were located along a line
extending from near DeBordieu Colony to near Lighthouse Island to
near Folly Beach, moving east at 50 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Trained weather spotters.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
North Charleston, Mount Pleasant, Summerville, Goose Creek, Hanahan,
McClellanville, Edisto Beach, Fort Sumter, Downtown Charleston, West
Ashley, Daniel Island, Naval Weapons Station Charleston, Johns
Island, I-26/I-526 Interchange and James Island.

This warning includes...
 I-26 between mile markers 205 and 221.
 I-526 between mile markers 11 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage across this area. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows.

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

&&

LAT...LON 3299 7934 3298 7951 3289 7955 3274 7983
      3267 7986 3252 8015 3253 8021 3241 8035
      3246 8047 3252 8053 3264 8027 3285 8032
      3329 7962 3325 7953 3324 7947 3316 7937
      3314 7927
TIME...MOT...LOC 1228Z 257DEG 45KT 3335 7912 3299 7948 3269 7994 

HAIL...0.75IN
WIND...70MPH
 
$$

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 13, 3:54 AM EDT, 3 hours 48 minutes earlier.

Area forecast discussion, Apr 13, 3:54 AM EDT, 3 hours 48 minutes before

Area Forecast Discussion
National Weather Service Charleston SC
354 AM EDT Mon Apr 13 2020

.SYNOPSIS...
A cold front will move through today. Low pressure could impact
the area Tuesday night and Wednesday, then high pressure will
return late week. Unsettled weather is possible next weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
This morning: Obviously, the focus of the forecast is the
impending arrival of a strong line of thunderstorms that has a
history of producing significant severe weather. Reports from
upstream WFO's shows that these storms have produced significant
wind damage and several strong, damaging tornadoes. Regarding
timing, we continue to use the HRRR which has so far done a good
job capturing the forward movement of the convection. With this
in mind, the line of storms should reach our inland-most
counties (Jenkins, Allendale, Screven, Bulloch, Candler, and
Tattnall) around 5-6 am. This would bring the severe threat into
the Savannah area around 7-8 am, and the Charleston area around
8-9 am. Fortunately the line of storms is expected to be off
the coast around 10-11 am, and the threat for severe weather
will end.

The near storm environment that the existing line will be
moving into is extremely impressive. Hi-res models have been
very consistent overnight in showing MLCAPE values surging into
the 1,500-2,000 J/kg range, including some pockets in excess of
2,000 J/kg. The best instability is expected to be aligned
across southeast Georgia northward into Allendale and Hampton
counties across the Savannah River. Regardless, MLCAPE in excess
of 1,000 J/kg is expected across the entire forecast area.
Instability like this is highly anomalous for this time day
(pre-dawn hours), and becomes even more worrisome when
considering the coincident wind fields. Effective deep layer
shear will be on the order of 70 knots with effective storm-
relative helicity in the 400-600 m2/s2 range. Soundings feature
strong veering profiles and large, curved hodographs. The storm
mode is a bit complex, but will generally feature linear
segments with embedded supercells. Strong damaging wind gusts
are expected, and the risk for tornadoes is rather significant
and increasing. This combination of shear and instability will
set the stage for a potentially significant severe weather
event, with the possibility of seeing a few long-tracked
supercells producing strong (EF2 or higher) tornadoes.

After the convection moves off the coast, skies will steadily
clear through the rest of the afternoon. We could see isolated
convection develop along the Georgia coast near the Altamaha,
but nothing significant is expected. Temperatures will warm
nicely into the low to mid 80s. Strong winds will continue this
morning until the thunderstorms pass, and the Wind Advisory
remains in effect for portions of the area through noon. This
afternoon, winds will diminish as the pressure gradient relaxes
and the low level jet shifts east of the area.

Tonight: The primary cold front will reach the coast and then
stall. Showers will form along the frontal zone, but mainly
impact the coastal waters. Some coverage is possible for
portions of coastal southeast Georgia and rain chances are held
in the 20-30 percent range south of I-16. Lows are forecast to
fall into the upper 50s inland, ranging to the low/mid 60s at
the coast.

&&

.SHORT TERM /TUESDAY THROUGH THURSDAY/...
High pressure will briefly build over the area from the
northwest on Tuesday though the continued broad upper trough to
our west will spur the development of coastal low pressure along
the stalled offshore front. A few showers could move into
southern areas on Tuesday, though greater coverage of
precipitation is expected late Tuesday night into Wednesday when
the strongest isentropic ascent will develop. Dry high pressure
will gradually build in Wednesday night and Thursday, pushing
any lingering showers off the coast.

Temperatures on Tuesday will likely be fairly warm in the low
80s due to persistent low-level warm air advection. A northerly
boundary layer flow Wednesday into Thursday will yield high
temps in the upper 60s to low 70s with lows in the 40s/50s.

&&

.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
A series of upper shortwaves could bring occasional showers to
the area late week into the weekend. Temps will be close to
normal.

&&

.AVIATION /08Z MONDAY THROUGH FRIDAY/...
Widespread MVFR ceilings and wind gusts into the 35-40 knot
range will continue through much of the morning. We could see
periodic IFR ceilings, but still think that MVFR will prevail.
The main forecast challenge is timing in the arrival of a very
strong line of thunderstorms. Current thinking is that the line
will impact KSAV around 12z and KCHS around 13z. The line will
bring even stronger wind gusts, so the forecast features up to
45 knots. The line will move through quickly, with a brief shot
of IFR conditions. Things will improve quickly thereafter as
winds steadily subside into the afternoon with clearing skies
and VFR conditions.

Extended Aviation Outlook: Low ceilings likely Tuesday night
and Wednesday, along with brief visibility reductions in
showers, as a coastal low pressure system moves through.

&&

.MARINE...
Today through Tonight: The worst marine conditions will occur
over the next few hours and Gale Warnings continue for all
zones. Improvement is expected this afternoon behind the
departed line of thunderstorms and Small Craft Advisories will
likely be needed to account for lingering high seas and elevated
winds. Mariners should be aware that thunderstorms will impact
the local waters today, and strong wind gusts in excess of 50
knots and waterspouts will be possible this morning. Overnight,
winds will steadily decrease and turn more westerly and then
northerly with time. Seas will diminish, becoming 3-5 feet by
sunrise Tuesday.

Marginal Small Craft Advisory conditions possible over offshore
portions of the waters Wednesday night and Thursday as a
northeast gradient develops behind a departing surface low.

Rip Currents: A High Risk of rip currents continues for today.

&&

.TIDES/COASTAL FLOODING...
High Surf: Strong southerly flow ahead of a cold front will
result in building nearshore seas through this evening. With
seas as high as 9-11 ft within 20 NM of shore, especially across
the SC coast, and breaker heights could exceed 5 ft at times. A
High Surf Advisory has been hoisted for late tonight into
though noon Monday for the Charleston County coast.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...High Rip Current Risk through this evening for GAZ117-119-139-
     141.
     Wind Advisory until noon EDT today for GAZ118-119.
SC...High Rip Current Risk through this evening for SCZ048>051.
     Wind Advisory until noon EDT today for SCZ044-045-048>052.
     High Surf Advisory until noon EDT today for SCZ050.
MARINE...Gale Warning until noon EDT today for AMZ330-352-354.
     Gale Warning until 2 PM EDT this afternoon for AMZ350-374.

&&

NEAR TERM...BSH
SHORT TERM...JRL
LONG TERM...JRL
AVIATION...BSH/JRL
MARINE...BSH/JRL
TIDES/COASTAL FLOODING...

Hazardous weather outlook, Apr 13, 3:22 AM EDT, 4 hours 20 minutes before

Hazardous Weather Outlook
National Weather Service Charleston SC
322 AM EDT Mon Apr 13 2020

GAZ087-088-099>101-114>116-137-138-140-SCZ040-042-043-047-140730-
Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-
Inland Bryan-Long-Inland Liberty-Inland McIntosh-Allendale-Hampton-
Inland Colleton-Inland Jasper-
322 AM EDT Mon Apr 13 2020

...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for southeast Georgia and
southeast South Carolina.

.DAY ONE...Today and 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...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.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.

GAZ117-139-141-140730-
Coastal Bryan-Coastal Liberty-Coastal McIntosh-
322 AM EDT Mon Apr 13 2020

...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for southeast Georgia.

.DAY ONE...Today and tonight.

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

   Tornado Watch.
   High Risk for Rip Currents.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.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.

GAZ119-SCZ048-049-051-140730-
Coastal Chatham-Beaufort-Coastal Colleton-Coastal Jasper-
322 AM EDT Mon Apr 13 2020

...WIND ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for southeast Georgia and
southeast South Carolina.

.DAY ONE...Today and tonight.

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

   Wind Advisory.
   Tornado Watch.
   High Risk for Rip Currents.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

GAZ118-SCZ044-045-052-140730-
Inland Chatham-Dorchester-Inland Berkeley-Tidal Berkeley-
322 AM EDT Mon Apr 13 2020

...WIND ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for southeast Georgia and
southeast South Carolina.

.DAY ONE...Today and tonight.

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

   Wind Advisory.
   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

AMZ350-374-140730-
Waters from South Santee River to Edisto Beach SC out 20 NM-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
322 AM EDT Mon Apr 13 2020

...GALE WARNING IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...
...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.
   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.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.

AMZ330-352-354-140730-
Charleston Harbor-
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-
322 AM EDT Mon Apr 13 2020

...GALE WARNING IN EFFECT UNTIL NOON EDT TODAY...
...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.
   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.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.

SCZ050-140730-
Charleston-
322 AM EDT Mon Apr 13 2020

...HIGH SURF ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
...WIND ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
...TORNADO WATCH 117 IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for southeast South Carolina.

.DAY ONE...Today and tonight.

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

   High Surf Advisory.
   Wind Advisory.
   Tornado Watch.
   High Risk for Rip Currents.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.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 13, 7:00 AM EDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
700 AM EDT MON APR 13 2020

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

0548 AM     TSTM WND DMG     DOVER                   32.58N  81.71W
04/13/2020                   SCREVEN            GA   911 CALL CENTER

            A TREE WAS REPORTED DOWN ON DOVER ROAD. TIME IS
            ESTIMATED BY RADAR.

&&

EVENT NUMBER CHS2000133

Local storm report, Apr 13, 7:22 AM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
722 AM EDT MON APR 13 2020

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

0652 AM     TSTM WND DMG     WALTERBORO              32.91N  80.67W
04/13/2020                   COLLETON           SC   TRAINED SPOTTER

            TREE ON A HOUSE IN WALTERBORO. ALSO SEVERAL TREES DOWN
            ALONG ROUTE US 17 ALONG THE SOUTH SIDE OF THE CITY
            LIMITS.

&&

EVENT NUMBER CHS2000134

MTE

Local storm report, Apr 13, 7:25 AM EDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
725 AM EDT MON APR 13 2020

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

0654 AM     TSTM WND DMG     WALTERBORO              32.91N  80.67W
04/13/2020                   COLLETON           SC   TRAINED SPOTTER

            SPOTTER REPORTED NUMEROUS TREES DOWN IN WALTERBORO NEAR
            THE COURTHOUSE. A USED CAR LOT HAS BEEN DAMAGED AND A
            METAL SHED HAS BEEN BLOWN INTO THE ROAD. DAMAGE FROM
            POSSIBLE TORNADO.

&&

EVENT NUMBER CHS2000135

JRL

Local storm report, Apr 13, 7:29 AM EDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
729 AM EDT MON APR 13 2020

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

0654 AM     TSTM WND DMG     WALTERBORO              32.91N  80.67W
04/13/2020                   COLLETON           SC   PUBLIC

            POSSIBLE TORNADO. ON HAMPTON ROAD, TREES IN BACK YARD
            SNAPPED OFF UPROOTED OR GONE. PART OF A ROOF FROM
            ANOTHER RESIDENCE IN BACK YARD. POWER LINES DOWN.

&&

EVENT NUMBER CHS2000136

MTE

Local storm report, Apr 13, 7:33 AM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
733 AM EDT MON APR 13 2020

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

0710 AM     TSTM WND DMG     ELLABELL                32.12N  81.49W
04/13/2020                   BRYAN              GA   911 CALL CENTER

            A TREE WAS REPORTED DOWN IN ELLABELL. TIME IS ESTIMATED
            BY RADAR.

&&

EVENT NUMBER CHS2000137

Local storm report, Apr 13, 7:40 AM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
740 AM EDT MON APR 13 2020

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

0654 AM     TSTM WND DMG     2 E WALTERBORO          32.91N  80.64W
04/13/2020                   COLLETON           SC   TRAINED SPOTTER

            A TRAINED SPOTTER REPORTED THAT TWO INDIVIDUALS ARE
            TRAPPED IN A HOUSE WITH TWO TREES ON IT. THE LOWCOUNTRY
            AIRPORT ALSO HAS UNKNOWN DAMAGE. POSSIBLE TORNADO
            DAMAGE.

&&

EVENT NUMBER CHS2000138

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 10:23 PM EDT	Coastal Flood Advisory	CHS		4 hr
Apr 13, 5:33 AM EDT	Severe Thunderstorm Warning	CHS	Allendale, Hampton, Jasper	57 min
Apr 13, 5:54 AM EDT	Tornado Warning	CHS	Allendale, Hampton	36 min
Apr 13, 6:02 AM EDT	Tornado Warning	CHS	Allendale	14 min
Apr 13, 6:18 AM EDT	Tornado Warning Tornado observed	CHS	Colleton, Hampton	27 min
Apr 13, 6:22 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Dorchester, Hampton, Jasper	53 min
Apr 13, 6:38 AM EDT	Tornado Warning EmergencyTornado observed	CHS	Colleton, Hampton	37 min
Apr 13, 6:53 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Berkeley, Charleston, Colleton, Dorchester	52 min
Apr 13, 7:01 AM EDT	Tornado Warning Tornado observedConsiderable damage threat	CHS	Colleton, Dorchester	29 min
Apr 13, 7:08 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	67 min
Apr 13, 7:15 AM EDT	Severe Thunderstorm Warning	CHS	Jasper	60 min
Apr 13, 7:26 AM EDT	Tornado Warning	CHS	Berkeley, Dorchester	34 min
Apr 13, 7:47 AM EDT	Special Marine Warning	CHS		88 min
Apr 13, 7:50 AM EDT	Special Marine Warning	CHS		115 min
Apr 13, 7:54 AM EDT	Tornado Warning Tornado observed	CHS	Berkeley	18 min
Apr 13, 8:00 AM EDT	Tornado Warning	CHS	Charleston, Colleton	30 min
Apr 13, 8:13 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	62 min
Apr 13, 8:26 AM EDT	Tornado Warning	CHS	Charleston	34 min
Apr 13, 8:42 AM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	33 min
Apr 13, 9:06 AM EDT	Special Marine Warning	CHS		54 min
Apr 13, 9:38 AM EDT	Special Marine Warning	CHS		86 min
Apr 13, 9:41 AM EDT	Special Marine Warning	CHS		82 min
Apr 13, 9:53 AM EDT	Small Craft Advisory	CHS		17 hr

Nearby

Severe Thunderstorm Warnings in South Carolina, 2020 Every severe thunderstorm warning in 2020

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.