Alert archive / South Carolina / Tornado Warnings in 2017
Tornado Warning 33, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Sep 11, 2017, 1:49 PM EDT for Charleston County, Colleton County, Dorchester County, South Carolina. It was in force for 26 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
- Sep 11, 2017, 1:49 PM EDT (17:49 UTC)
- Expired
- Sep 11, 2017, 2:15 PM EDT
- In force
- 26 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Charleston County, SC, Colleton County, SC, Dorchester County, SC
The radar
The Charleston,SC radar (KCLX), 72 km from the middle of the area, began a volume at 17:54 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 |
|---|---|---|---|
| Sep 10, 11:50 PM EDT | Tornado Watch | SPC | 14 hr |
| Sep 11, 1:46 PM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 5.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 547 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 902 m²/s²
- 0-3 km storm-relative helicity
- 1081 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
884
WFUS52 KCHS 111749
TORCHS
SCC019-029-035-111815-
/O.NEW.KCHS.TO.W.0033.170911T1749Z-170911T1815Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
149 PM EDT MON SEP 11 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...
Dorchester County in southeastern South Carolina...
* Until 215 PM EDT
* At 149 PM EDT, a severe thunderstorm capable of producing a tornado
was located 14 miles southwest of Magnolia Gardens, moving
northwest at 55 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...
Hollywood, Ravenel, Meggett, Delemar Crossroads, Yonges Island,
Adams Run, Jacksonboro and Bears Bluff.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Tornadoes from tropical storms or hurricanes can form and move very
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a tornado
it could be too late. Take action now to immediately protect
yourself.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3273 8011 3260 8021 3275 8057 3292 8038
TIME...MOT...LOC 1749Z 120DEG 48KT 3269 8020
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$2 follow-up statements
318
WWUS52 KCHS 111804
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
204 PM EDT MON SEP 11 2017
SCC019-029-035-111815-
/O.CON.KCHS.TO.W.0033.000000T0000Z-170911T1815Z/
Charleston SC-Colleton SC-Dorchester SC-
204 PM EDT MON SEP 11 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR
CHARLESTON...COLLETON AND DORCHESTER COUNTIES...
At 203 PM EDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southwest of Middleton Place, moving northwest at
65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Hollywood, Ravenel, Meggett, Delemar Crossroads, Wadmalaw Island and
Yonges Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Tornadoes from tropical storms or hurricanes can form and move very
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a tornado
it could be too late. Take action now to immediately protect
yourself.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3273 8011 3265 8017 3269 8022 3271 8018
3272 8020 3270 8021 3271 8023 3269 8023
3284 8047 3292 8038
TIME...MOT...LOC 1803Z 132DEG 58KT 3281 8026
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$926
WWUS52 KCHS 111817 RRA
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
217 PM EDT MON SEP 11 2017
SCC019-029-035-111827-
/O.EXP.KCHS.TO.W.0033.000000T0000Z-170911T1815Z/
Charleston SC-Colleton SC-Dorchester SC-
217 PM EDT MON SEP 11 2017
...THE TORNADO WARNING FOR CHARLESTON...COLLETON AND DORCHESTER
COUNTIES HAS EXPIRED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area therefore the warning has been allowed to expire.
LAT...LON 3273 8011 3265 8017 3269 8022 3271 8018
3272 8020 3270 8021 3271 8023 3269 8023
3284 8047 3292 8038
TIME...MOT...LOC 1817Z 120DEG 48KT 3290 8045
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 11:30 PM EDT | Hurricane Warning | CHS | 9 hr | |
| Sep 11, 3:12 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 3:12 AM EDT | Special Marine Warning | CHS | 63 min | |
| Sep 11, 3:49 AM EDT | Special Marine Warning | CHS | 56 min | |
| Sep 11, 4:19 AM EDT | Special Marine Warning | CHS | 86 min | |
| Sep 11, 5:18 AM EDT | Special Marine Warning | CHS | 117 min | |
| Sep 11, 7:01 AM EDT | Special Marine Warning | CHS | 119 min | |
| Sep 11, 7:41 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 7:45 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 8:16 AM EDT | Flash Flood Warning | CHS | Jasper | 8 hr |
| Sep 11, 8:36 AM EDT | Areal Flood Advisory | CHS | Beaufort, Jasper | 84 min |
| Sep 11, 9:22 AM EDT | Flash Flood Warning | CHS | Beaufort, Jasper | 8 hr |
| Sep 11, 9:31 AM EDT | Areal Flood Advisory | CHS | Allendale, Hampton, Jasper | 119 min |
| Sep 11, 9:41 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 9:50 AM EDT | Special Marine Warning | CHS | 115 min | |
| Sep 11, 10:31 AM EDT | Special Marine Warning | CHS | 119 min | |
| Sep 11, 10:44 AM EDT | Flash Flood Warning | CHS | Allendale, Hampton, Jasper | 7 hr |
| Sep 11, 10:45 AM EDT | River Flood Warning | CHS | Berkeley, Georgetown, Williamsburg | 24 hr |
| Sep 11, 11:24 AM EDT | Flash Flood Warning | CHS | Berkeley, Charleston, Colleton, Dorchester | 15 hr |
| Sep 11, 11:38 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 11:44 AM EDT | Areal Flood Advisory | CHS | Allendale | 2 hr |
| Sep 11, 11:51 AM EDT | Areal Flood Advisory | CHS | Allendale, Colleton, Dorchester, Hampton | 114 min |
| Sep 11, 12:01 PM EDT | Tornado Warning | CHS | Beaufort, Charleston, Colleton | 29 min |
| Sep 11, 12:23 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Sep 11, 12:37 PM EDT | Tornado Warning | CHS | Charleston | 23 min |
| Sep 11, 12:40 PM EDT | Special Marine Warning | CHS | 65 min | |
| Sep 11, 12:54 PM EDT | Flash Flood Warning | CHS | Allendale, Colleton, Dorchester, Hampton | 9 hr |
| Sep 11, 12:59 PM EDT | Tornado Warning | CHS | Charleston, Dorchester | 31 min |
| Sep 11, 1:10 PM EDT | Tornado Warning | CHS | Charleston, Colleton | 35 min |
| Sep 11, 1:53 PM EDT | Tornado Warning | CHS | Charleston, Dorchester | 24 min |
| Sep 11, 2:11 PM EDT | Special Marine Warning | CHS | 94 min | |
| Sep 11, 2:45 PM EDT | Tornado Warning | CHS | Beaufort, Colleton | 30 min |
| Sep 11, 2:46 PM EDT | Tornado Warning | CHS | Berkeley, Charleston, Dorchester | 16 min |
| Sep 11, 3:10 PM EDT | Flash Flood Warning | CHS | Berkeley, Colleton, Dorchester | 7 hr |
| Sep 11, 3:58 PM EDT | Special Marine Warning | CHS | 32 min | |
| Sep 11, 4:43 PM EDT | Special Marine Warning | CHS | 62 min | |
| Sep 11, 4:48 PM EDT | Areal Flood Warning | CHS | Jasper | 7 hr |
| Sep 11, 5:16 PM EDT | Areal Flood Warning | CHS | Allendale, Beaufort, Hampton, Jasper | 7 hr |
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.