Alert archive / South Carolina / Tornado Warnings in 2017
Tornado Warning 28, NWS Columbia, SC
NWS Columbia, SC issued this tornado warning at Oct 23, 2017, 12:39 PM EDT for Calhoun County, Orangeburg County, South Carolina. It was in force for 36 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
- Oct 23, 2017, 12:39 PM EDT (16:39 UTC)
- Expired
- Oct 23, 2017, 1:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Calhoun County, SC, Orangeburg County, SC
The radar
The Columbia radar (KCAE), 74 km from the middle of the area, began a volume at 16:40 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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 4.7 hours before the alert went out and 82 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
- 252 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
214
WFUS52 KCAE 231639
TORCAE
SCC017-075-231715-
/O.NEW.KCAE.TO.W.0028.171023T1639Z-171023T1715Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
1239 PM EDT MON OCT 23 2017
The National Weather Service in Columbia has issued a
* Tornado Warning for...
Southeastern Calhoun County in central South Carolina...
South central Orangeburg County in central South Carolina...
* Until 115 PM EDT
* At 1239 PM EDT, a severe thunderstorm capable of producing a
tornado was located near Bowman, or 17 miles southeast of
Orangeburg, moving north at 30 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.
* This dangerous storm will be near...
Elloree around 115 PM EDT.
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.
&&
LAT...LON 3323 8072 3363 8069 3359 8051 3359 8050
3358 8052 3356 8050 3355 8050 3328 8060
3323 8070
TIME...MOT...LOC 1639Z 190DEG 26KT 3331 8066
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CJR3 follow-up statements
354
WWUS52 KCAE 231649
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
1249 PM EDT MON OCT 23 2017
SCC017-075-231715-
/O.CON.KCAE.TO.W.0028.000000T0000Z-171023T1715Z/
Calhoun SC-Orangeburg SC-
1249 PM EDT MON OCT 23 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
SOUTHEASTERN CALHOUN AND CENTRAL ORANGEBURG COUNTIES...
At 1246 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Bowman, moving north at 30 mph. The storm will
cross I-26 between exits 159 and 165.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Elloree around 110 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3331 8070 3362 8065 3359 8051 3359 8050
3358 8052 3356 8050 3330 8062
TIME...MOT...LOC 1646Z 191DEG 27KT 3337 8064
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CJR197
WWUS52 KCAE 231658
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
1258 PM EDT MON OCT 23 2017
SCC017-075-231715-
/O.CON.KCAE.TO.W.0028.000000T0000Z-171023T1715Z/
Calhoun SC-Orangeburg SC-
1258 PM EDT MON OCT 23 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
SOUTHEASTERN CALHOUN AND CENTRAL ORANGEBURG COUNTIES...
At 1257 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northeast of Bowman, or 13 miles southeast of
Brookdale, moving north at 30 mph. The storm has moved north of I-20.
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.
This dangerous storm will be near...
Elloree around 115 PM EDT.
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.
&&
LAT...LON 3340 8067 3362 8065 3359 8051 3359 8050
3358 8052 3356 8051 3339 8060
TIME...MOT...LOC 1657Z 194DEG 24KT 3343 8062
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CJR625
WWUS52 KCAE 231706
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
106 PM EDT MON OCT 23 2017
SCC017-075-231715-
/O.CON.KCAE.TO.W.0028.000000T0000Z-171023T1715Z/
Calhoun SC-Orangeburg SC-
106 PM EDT MON OCT 23 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
SOUTHEASTERN CALHOUN AND CENTRAL ORANGEBURG COUNTIES...
At 106 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Elloree, or 13 miles east of Brookdale, moving
north at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Elloree around 110 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3362 8063 3359 8051 3358 8051 3358 8052
3357 8052 3346 8058 3347 8064
TIME...MOT...LOC 1706Z 195DEG 26KT 3350 8060
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CJRThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 1:13 PM EDT | Tornado Warning | CAE | Calhoun, Clarendon, Sumter | 29 min |
| Oct 23, 3:35 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Orangeburg | 40 min |
| Oct 23, 4:10 PM EDT | Tornado Warning | CAE | Calhoun, Orangeburg | 35 min |
| Oct 23, 5:05 PM EDT | Special Weather Statement | CAE | Lancaster | 55 min |
| Oct 23, 6:01 PM EDT | Special Weather Statement | CAE | Bamberg, Orangeburg | 44 min |
| Oct 23, 6:02 PM EDT | Special Weather Statement | CAE | Kershaw, Lancaster | 28 min |
| Oct 23, 6:18 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Orangeburg | 57 min |
| Oct 23, 6:52 PM EDT | Special Weather Statement | CAE | Chesterfield, Kershaw, Lee, Sumter | 53 min |
| Oct 23, 7:51 PM EDT | Special Weather Statement | CAE | Chesterfield | 39 min |
| Oct 23, 7:54 PM EDT | Special Weather Statement | CAE | Clarendon | 66 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.