Alert archive / South Carolina / Tornado Warnings in 2017
Tornado Warning 3, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Jan 21, 2017, 2:58 PM EST for Allendale County, South Carolina; Screven County, Georgia. It was in force for 32 min. 1 report 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
- Jan 21, 2017, 2:58 PM EST (19:58 UTC)
- Expired
- Jan 21, 2017, 3:30 PM EST
- In force
- 32 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Screven County, GA, Allendale County, SC
The radar
The Charleston,SC radar (KCLX), 38 km from the middle of the area, began a volume at 20:00 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 |
|---|---|---|---|
| Jan 21, 2:58 PM EST | TORNADO | 4 Ne Sylvania, GA | A NWS SURVEY TEAM CONFIRMED AN EF-1 TORNADO IN SCREVEN COUNTY. THE TORNADO CONTINUED A NORTHEAST PATH ALONG FRIENDSHIP ROAD...DAMAGING A FIREHOUSE...UPROOTING SEVERAL LARGE TREES AND PRODUCING ROOF DAMAGE TO TWO RESIDENCES AND A COUPLE OF OUTBUILDINGS. THE TOR |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 21, 1:51 PM EST | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 8.0 hours before the alert went out and 125 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
- 138 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
783
WFUS52 KCHS 211958
TORCHS
GAC251-SCC005-212030-
/O.NEW.KCHS.TO.W.0003.170121T1958Z-170121T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
258 PM EST SAT JAN 21 2017
The National Weather Service in Charleston has issued a
* Tornado Warning for portions of...
Screven County in southeastern Georgia...
Allendale County in southeastern South Carolina...
* Until 330 PM EST
* At 258 PM EST, a severe thunderstorm capable of producing a tornado
was located near Sylvania, moving northeast at 50 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...
Allendale, Fairfax and Barton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3294 8123 3291 8124 3289 8128 3284 8126
3281 8129 3275 8156 3283 8164 3304 8133
TIME...MOT...LOC 1958Z 244DEG 42KT 3281 8155
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 3:27 AM EST | Small Craft Advisory | CHS | 3 days | |
| Jan 21, 3:06 PM EST | Severe Thunderstorm Warning | CHS | Allendale, Beaufort, Colleton, Hampton, Jasper | 54 min |
| Jan 21, 3:16 PM EST | Tornado Warning | CHS | Hampton, Jasper | 29 min |
| Jan 21, 3:38 PM EST | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 67 min |
| Jan 21, 3:56 PM EST | Severe Thunderstorm Warning | CHS | Beaufort, Berkeley, Charleston, Colleton, Dorchester, Jasper | 49 min |
| Jan 21, 4:22 PM EST | Special Marine Warning | CHS | 83 min | |
| Jan 21, 4:33 PM EST | Gale Watch | CHS | 11 hr | |
| Jan 21, 5:04 PM EST | Special Weather Statement | CHS | Berkeley | 26 min |
| Jan 21, 5:17 PM EST | Special Marine Warning | CHS | 58 min | |
| Jan 21, 5:33 PM EST | Special Marine Warning | CHS | 117 min | |
| Jan 21, 2:13 PM EST | Severe Thunderstorm Warning | CHS | Bulloch, Candler, Evans, Jenkins, Screven, Tattnall | 62 min |
| Jan 21, 2:21 PM EST | Tornado Warning | CHS | Jenkins, Screven | 24 min |
| Jan 21, 2:44 PM EST | Tornado Warning | CHS | Long, Tattnall | 31 min |
| Jan 21, 4:00 PM EST | Special Weather Statement | CHS | McIntosh | 30 min |
Nearby
Tornado Warnings in South Carolina, 2017Tornado Warnings in Georgia, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.