Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 31, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at May 4, 2021, 3:45 PM EDT for 4 counties in South Carolina. It was in force for 45 min. 3 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
- May 4, 2021, 3:45 PM EDT (19:45 UTC)
- Expired
- May 4, 2021, 4:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lexington County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC
The radar
The Columbia radar (KCAE), 36 km from the middle of the area, began a volume at 19:46 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 |
|---|---|---|---|
| May 4, 4:05 PM EDT | TSTM WND DMG | 2 Sse Chapin, SC | SC HIGHWAY PATROL REPORTS TREES BLOCKING ROADWAY AT OLD LEXINGTON HIGHWAY AND SID BRICKLEY RD. TIME ESTIMATED BY RADAR. |
| May 4, 4:14 PM EDT | TSTM WND DMG | 4 N Lake Murray Of Rich, SC | NUMEROUS TREES SNAPPED AND UPROOTED IN PORTRAIT HILL NEIGHBORHOOD. |
| May 4, 4:15 PM EDT | TSTM WND DMG | 2 S Chapin, SC | RETIRED NWS EMPLOYEE REPORTS PARTIAL ROOFING AND SIDING RIPPED FROM HOUSES NEAR CHAPIN ELEMENTARY SCHOOL AS WELL AS SEVERAL TREES DOWN. TIME ESTIMATED BY RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 7.8 hours before the alert went out and 192 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
- 573 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
591
WUUS52 KCAE 041945
SVRCAE
SCC063-071-079-081-042030-
/O.NEW.KCAE.SV.W.0031.210504T1945Z-210504T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
345 PM EDT Tue May 4 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Southeastern Newberry County in central South Carolina...
Northwestern Lexington County in central South Carolina...
Eastern Saluda County in central South Carolina...
Northwestern Richland County in central South Carolina...
* Until 430 PM EDT.
* At 345 PM EDT, a severe thunderstorm was located near Saluda, or 9
miles northwest of Batesburg-Leesville, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Irmo, Batesburg-Leesville, Saluda, Prosperity, Dreher Island State
Park, Ballentine, Chapin, Little Mountain, Pomaria, Peak, Cedar
Grove Fire Station, South Shore Marina, Oswald Park, Saluda Co
Sheriff's Office, Bundrick Island, Putnam's Landing, White Rock,
Rocky Point Recreation Area, Hollywood Elementary School and Emory.
This includes Interstate 26 between mile markers 80 and 100.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
Excessive cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck by lightning.
Severe thunderstorms can produce large capsizing waves and frequent
lightning. If on or near Lake Murray move away from the water and
take shelter!
&&
LAT...LON 3437 8139 3435 8137 3431 8136 3430 8134
3427 8134 3424 8131 3423 8128 3420 8125
3420 8122 3418 8118 3419 8117 3414 8111
3385 8164 3398 8181
TIME...MOT...LOC 1945Z 228DEG 30KT 3397 8169
HAIL...1.00IN
WIND...60MPH
$$
JAQ2 follow-up statements
816
WWUS52 KCAE 042003
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
403 PM EDT Tue May 4 2021
SCC063-071-079-081-042030-
/O.CON.KCAE.SV.W.0031.000000T0000Z-210504T2030Z/
Newberry SC-Lexington SC-Saluda SC-Richland SC-
403 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHEASTERN NEWBERRY...NORTHWESTERN LEXINGTON...NORTHEASTERN
SALUDA AND NORTHWESTERN RICHLAND COUNTIES...
At 403 PM EDT, a severe thunderstorm was located near Dreher Island
State Park, or 11 miles southwest of VC Summer Nuclear Station,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Irmo, Batesburg-Leesville, Prosperity, Dreher Island State Park,
Ballentine, Chapin, Little Mountain, Pomaria, Peak, Cedar Grove Fire
Station, South Shore Marina, Oswald Park, Bundrick Island, Putnam's
Landing, White Rock, Rocky Point Recreation Area, Hollywood
Elementary School, Delmar, Hollow Creek Public Park and Melvin Park.
This includes Interstate 26 between mile markers 80 and 101.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck by lightning.
Severe thunderstorms can produce large capsizing waves and frequent
lightning. If on or near Lake Murray move away from the water and
take shelter!
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways or
walk through high water.
&&
LAT...LON 3437 8139 3435 8137 3431 8136 3430 8134
3427 8134 3424 8131 3423 8128 3420 8125
3420 8122 3418 8118 3419 8117 3414 8111
3392 8151 3403 8175
TIME...MOT...LOC 2003Z 227DEG 41KT 3417 8144
HAIL...1.00IN
WIND...60MPH
$$
JAQ168
WWUS52 KCAE 042032
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
432 PM EDT Tue May 4 2021
SCC063-071-079-081-042041-
/O.EXP.KCAE.SV.W.0031.000000T0000Z-210504T2030Z/
Newberry SC-Lexington SC-Saluda SC-Richland SC-
432 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NEWBERRY...
NORTHWESTERN LEXINGTON...NORTHEASTERN SALUDA AND NORTHWESTERN
RICHLAND COUNTIES HAS EXPIRED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been allowed to expire.
LAT...LON 3437 8139 3435 8137 3431 8136 3430 8134
3427 8134 3424 8131 3423 8128 3420 8125
3420 8122 3418 8118 3419 8117 3414 8111
3392 8151 3403 8175
TIME...MOT...LOC 2031Z 228DEG 30KT 3432 8124
$$
JAQThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:29 PM EDT | Special Weather Statement | CAE | Saluda | 31 min |
| May 4, 3:42 PM EDT | Special Weather Statement | CAE | Lexington | 33 min |
| May 4, 3:50 PM EDT | Special Weather Statement | CAE | Newberry | 25 min |
| May 4, 3:52 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Richland | 41 min |
| May 4, 3:54 PM EDT | Special Weather Statement | CAE | McCormick | 36 min |
| May 4, 3:54 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 36 min |
| May 4, 4:00 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry, Saluda | 45 min |
| May 4, 4:16 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Kershaw, Lancaster, Newberry, Richland | 59 min |
| May 4, 4:22 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Fairfield, Kershaw, Lancaster, Lee | 53 min |
| May 4, 4:38 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick, Saluda | 53 min |
| May 4, 4:46 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Lexington, Newberry, Richland | 44 min |
| May 4, 5:03 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster, Lee | 57 min |
| May 4, 5:30 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Lexington, Orangeburg | 60 min |
| May 4, 6:03 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Barnwell, Calhoun, Orangeburg, Richland | 57 min |
| May 4, 6:07 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Richland, Sumter | 53 min |
| May 4, 6:57 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon | 48 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2021Every severe thunderstorm warning in 2021
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.