Alert archive / South Carolina / Tornado Warnings in 2017
Tornado Warning 25, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at May 23, 2017, 6:47 PM EDT for Charleston County, Colleton County, South Carolina. It was in force for 28 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
- May 23, 2017, 6:47 PM EDT (22:47 UTC)
- Expired
- May 23, 2017, 7:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Charleston County, SC, Colleton County, SC
The radar
The Charleston,SC radar (KCLX), 79 km from the middle of the area, began a volume at 22:49 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 |
|---|---|---|---|
| May 23, 2:45 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.8 hours before the alert went out and 46 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.
- Mixed-layer CAPE
- 403 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
486
WFUS52 KCHS 232247
TORCHS
SCC019-029-232315-
/O.NEW.KCHS.TO.W.0025.170523T2247Z-170523T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
647 PM EDT TUE MAY 23 2017
The National Weather Service in Charleston has issued a
* Tornado Warning for portions of...
Charleston County in southeastern South Carolina...
Colleton County in southeastern South Carolina...
* Until 715 PM EDT
* At 647 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Edisto Beach, 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...
Edisto Beach, Seabrook Island, Kiawah Island, Rockville and Edisto
Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3252 8015 3252 8021 3253 8021 3248 8026
3246 8036 3250 8039 3267 8013 3255 8007
TIME...MOT...LOC 2247Z 237DEG 29KT 3250 8035
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$2 follow-up statements
961
WWUS52 KCHS 232258
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
658 PM EDT TUE MAY 23 2017
SCC029-232307-
/O.CAN.KCHS.TO.W.0025.000000T0000Z-170523T2315Z/
Colleton SC-
658 PM EDT TUE MAY 23 2017
...THE TORNADO WARNING FOR COLLETON COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. therefore the warning has been cancelled.
LAT...LON 3252 8015 3253 8021 3249 8028 3251 8029
3252 8026 3254 8026 3253 8027 3253 8030
3255 8031 3267 8013 3255 8007
TIME...MOT...LOC 2257Z 237DEG 30KT 3255 8025
$$
SCC019-232315-
/O.CON.KCHS.TO.W.0025.000000T0000Z-170523T2315Z/
Charleston SC-
658 PM EDT TUE MAY 23 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR
CHARLESTON COUNTY...
At 657 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Edisto Beach, 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...
Seabrook Island, Kiawah Island, Rockville and Edisto Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3252 8015 3253 8021 3249 8028 3251 8029
3252 8026 3254 8026 3253 8027 3253 8030
3255 8031 3267 8013 3255 8007
TIME...MOT...LOC 2257Z 237DEG 30KT 3255 8025
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$895
WWUS52 KCHS 232308
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
708 PM EDT TUE MAY 23 2017
SCC019-232318-
/O.EXP.KCHS.TO.W.0025.000000T0000Z-170523T2315Z/
Charleston SC-
708 PM EDT TUE MAY 23 2017
...THE TORNADO WARNING FOR CHARLESTON COUNTY WILL EXPIRE AT 715 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Charleston.
LAT...LON 3252 8015 3253 8021 3249 8028 3251 8029
3252 8026 3254 8026 3253 8027 3253 8030
3255 8031 3267 8013 3255 8007
TIME...MOT...LOC 2308Z 237DEG 29KT 3259 8017
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:34 AM EDT | Flash Flood Watch | CHS | Allendale, Berkeley, Colleton, Dorchester, Hampton | 20 hr |
| May 23, 3:35 AM EDT | Small Craft Advisory | CHS | 70 hr | |
| May 23, 1:28 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston | 92 min |
| May 23, 2:48 PM EDT | Areal Flood Advisory | CHS | Charleston | 57 min |
| May 23, 3:48 PM EDT | Special Marine Warning | CHS | 57 min | |
| May 23, 4:38 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston, Colleton | 52 min |
| May 23, 5:23 PM EDT | Flash Flood Warning | CHS | Charleston | 6 hr |
| May 23, 5:29 PM EDT | Special Marine Warning | CHS | 61 min | |
| May 23, 5:56 PM EDT | Special Marine Warning | CHS | 94 min | |
| May 23, 6:15 PM EDT | Special Weather Statement | CHS | Beaufort | 30 min |
| May 23, 6:32 PM EDT | Special Marine Warning | CHS | 88 min | |
| May 23, 6:42 PM EDT | Special Marine Warning | CHS | 2 hr | |
| May 23, 7:15 PM EDT | Severe Thunderstorm Warning | CHS | Charleston | 25 min |
| May 23, 7:28 PM EDT | Special Marine Warning | CHS | 47 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.