Alert archive / South Carolina / Special Weather Statements in 2018
Special Weather Statement, NWS Columbia, SC
NWS Columbia, SC issued this special weather statement at Aug 6, 2018, 9:18 PM EDT for Edgefield County, Saluda County, South Carolina. It was in force for 42 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
- Aug 6, 2018, 9:18 PM EDT (01:18 UTC)
- Expired
- Aug 6, 2018, 10:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Columbia, SC
Counties Edgefield County, SC, Saluda County, SC
The radar
The Columbia radar (KCAE), 65 km from the middle of the area, began a volume at 01:21 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 00:00Z, 1.3 hours before the alert went out and 206 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
- 1693 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
450
WWUS82 KCAE 070118
SPSCAE
Special Weather Statement
National Weather Service Columbia SC
918 PM EDT MON AUG 6 2018
SCZ025-026-070200-
Saluda SC-Edgefield SC-
918 PM EDT MON AUG 6 2018
...Strong Thunderstorms Will Impact Portions of central Saluda and
northeastern Edgefield Counties Until 1000 PM EDT....
At 917 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Saluda, or 18 miles northwest of Batesburg,
moving south at 15 mph.
HAZARD...gusty winds 35 to 45 mph, excessive cloud to ground
lightning and localized minor flooding.
IMPACT...expect minor damage to tree limbs and blowing around of
light, unsecured objects. All outdoor activities should
cease. Move indoors immediately. Localized, minor
flooding of low lying and poor drainage areas is also
possible.
Some locations in the path of this storm include...
Edgefield, Saluda, Johnston, Ridge Spring, Monetta and Ward.
Heavy rainfall is occurring with this storm, and may cause localized
flooding. Do not drive your vehicle through flooded roadways.
Move indoors immediately. Excessive cloud to ground lightning is
occurring with this storm. If you can hear thunder, you are close
enough to be struck by lightning.
LAT...LON 3414 8174 3385 8160 3375 8197 3392 8208
TIME...MOT...LOC 0117Z 346DEG 11KT 3405 8183
$$
hcWhat forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before this special weather statement went out at Aug 6, 7:40 PM EDT, 1 hour 38 minutes earlier.
Area forecast discussion, Aug 6, 7:40 PM EDT, 1 hour 38 minutes before
Area Forecast Discussion National Weather Service Columbia SC 740 PM EDT Mon Aug 6 2018 .SYNOPSIS... An upper ridge will extend westward from the Atlantic into our region through Thursday. This will allow a return to more typical summerlike weather with scattered mainly afternoon and evening thunderstorms, along with a warming trend. The upper ridge will gradually weaken late this week into this weekend as an upper trough digs into the eastern US. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... Current satellite imagery and radar returns show thunderstorms in the Pee Dee region and along the southern coast of SC. Numerous outflow boundaries continue to develop and cross the area resulting in additional cells developing. With sunset instability will begin weakening however expect some cells to develop where outflow boundaries collide. As instability weakens potential for severe thunderstorms will also lower with overnight concern for locally heavy rainfall as pwat values remain 1.8 inches or greater. Convection will dissipate late this evening with convective debris cloudiness persisting overnight. With light winds and cloud cover overnight lows will be in the low to mid 70s. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/... The Atlantic ridge will retrograde and build over the region through the middle of the week. Despite the increased subsidence, mainly scattered diurnal convection is expected both Tuesday and Wednesday as precipitable water values remain up around 1.75 to 2 inches and a weak lee side trough sets up at the surface across the area. In addition, it appears that several weak upper disturbances will cross the area along the northern periphery of the ridge, and could aid in convective development. High temperatures will in the lower to mid 90s both Tuesday and Wednesday, with nighttime lows in the lower to mid 70s. && .LONG TERM /THURSDAY THROUGH MONDAY/... A westerly flow will prevail aloft on Thursday before the upper ridge retrogrades into the Gulf of Mexico and a trough digs across the TN valley on Friday. The upper trough axis will swing through on Saturday, with a deeper trough then settling in across the eastern US late in the weekend into early next week. Precipitation chances will increase over the weekend as a result, but the bulk of convection is expected to remain diurnally driven. High temperatures should be near or even slightly below normal through the long term period given the increased rain chances and potential for cloud cover. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... Another active convective day appears to be winding down with only a few storms northwest of Columbia on the radar. Not confident that the storms will hold together to reach CAE/CUB so not including thunder in the forecast but may have to amend shortly after 00z if it continues to reach those terminals. Elsewhere, generally high debris clouds blanket the area with no restrictions expected through much of the night. Thinning of the cirrus clouds later tonight may yield some fog at prone locations OGB/AGS and have included some fog there. Hit AGS hard again going with persistence and forecasting IFR vsbys 08z-12z with possible intermittent LIFR vsbys and cigs during that time. Winds will generally be light and variable to calm overnight before picking up from the southwest after 14z. Isolated convection again Tuesday afternoon but timing and location too uncertain to include at this time. EXTENDED AVIATION OUTLOOK...Mainly diurnal scattered thunderstorms are forecast each day. Widespread stratus and fog may occur during the late nights and early mornings. && .CAE WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. &&
Hazardous weather outlook, Aug 6, 2:42 AM EDT, 18 hours 36 minutes before
Hazardous Weather Outlook National Weather Service Columbia SC 242 AM EDT Mon Aug 6 2018 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-070645- Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- 242 AM EDT Mon Aug 6 2018 This Hazardous Weather Outlook is for the Midlands of South Carolina and the Central Savannah River area of Georgia. .DAY ONE...Today and Tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 6, 4:02 PM EDT, 5 hours 16 minutes before
Special Weather Statement
National Weather Service Columbia SC
402 PM EDT MON AUG 6 2018
GAZ077-SCZ035-036-041-062030-
Burke GA-Orangeburg SC-Barnwell SC-Bamberg SC-
402 PM EDT MON AUG 6 2018
...Strong Thunderstorms Will Impact Portions of southeastern Burke...
south central Orangeburg...southeastern Barnwell and Bamberg Counties
Until 430 PM EDT....
At 402 PM EDT...National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near Bamberg to
Sardis, moving east at 20 mph.
HAZARD...gusty winds 40 to 50 mph, excessive cloud to ground
lightning and localized minor flooding.
IMPACT...expect minor damage to tree limbs and blowing around of
light, unsecured objects. All outdoor activities should
cease. Move indoors immediately. Localized, minor
flooding of low lying and poor drainage areas is also
possible.
Some locations in the path of these storms include...
Barnwell, Bamberg, Denmark, Branchville, Sardis, Ehrhardt, Hilda,
Rowesville, Olar, Kline, Girard and Govan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is occurring with these storms, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Move indoors immediately. Excessive cloud to ground lightning is
occurring with these storms. If you can hear thunder, you are close
enough to be struck by lightning.
These storms may intensify. Monitor NOAA Weather Radio, local radio
and television stations for additional information and possible
warnings from the National Weather Service.
&&
LAT...LON 3295 8182 3295 8189 3298 8190 3315 8169
3338 8097 3337 8075 3328 8060 3313 8088
3305 8111 3312 8119 3311 8136 3314 8148
3316 8154 3310 8162 3304 8156 3291 8176
TIME...MOT...LOC 2002Z 290DEG 19KT 3328 8099 3300 8177
RCLocal storm report, Aug 6, 4:33 PM EDT, 4 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
433 PM EDT MON AUG 6 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0229 PM TSTM WND DMG 1 NE BURNETTOWN 33.52N 81.85W
08/06/2018 AIKEN SC LAW ENFORCEMENT
AIKEN EMERGENCY MANAGER REPORTED THAT THE
STEEPLE FROM LANGLEY FIRST BAPTIST CHURCH
HAD BEEN BLOWN OFF THE CHURCH.
&&
HCLocal storm report, Aug 6, 4:58 PM EDT, 4 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
458 PM EDT MON AUG 6 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0310 PM TSTM WND DMG 5 SW WILLISTON 33.36N 81.48W
08/06/2018 BARNWELL SC LAW ENFORCEMENT
BARNWELL DISPATCH REPORTED POWERLINES DOWN
ON HWY 278 NEAR HWY 39.
&&
HCSpecial weather statement, Aug 6, 7:05 PM EDT, 2 hours 13 minutes before
Special Weather Statement
National Weather Service Columbia SC
705 PM EDT MON AUG 6 2018
SCZ021-062330-
Fairfield SC-
705 PM EDT MON AUG 6 2018
...Strong Thunderstorms Will Impact Portions of northwestern
Fairfield County Until 730 PM EDT....
At 704 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Chester State Park, or 7 miles southwest of
Chester, moving south at 10 mph.
HAZARD...strong winds 45 to 55 mph, up to nickel sized hail,
excessive cloud to ground lightning and localized minor
flooding.
IMPACT...expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely. All outdoor activities should cease. Move
indoors immediately. Localized, minor flooding of low
lying and poor drainage areas is also possible.
Some locations in the path of this storm include...
Blackstock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is occurring with this storm, and may cause localized
flooding. Do not drive your vehicle through flooded roadways.
Move indoors immediately. Excessive cloud to ground lightning is
occurring with this storm. If you can hear thunder, you are close
enough to be struck by lightning.
This storm may intensify. Monitor NOAA Weather Radio, local radio and
television stations for additional information and possible warnings
from the National Weather Service.
&&
LAT...LON 3456 8112 3449 8107 3439 8139 3446 8142
3449 8142 3456 8143 3457 8142
TIME...MOT...LOC 2304Z 342DEG 9KT 3465 8132
RCSpecial weather statement, Aug 6, 7:53 PM EDT, 1 hour 25 minutes before
Special Weather Statement
National Weather Service Columbia SC
753 PM EDT MON AUG 6 2018
SCZ020-026-070045-
Newberry SC-Saluda SC-
753 PM EDT MON AUG 6 2018
...Strong Thunderstorms Will Impact Portions of southwestern Newberry
and northwestern Saluda Counties Until 845 PM EDT....
At 752 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm 9 miles northeast of Greenwood State Park, or 11
miles west of Newberry, moving south at 15 mph.
HAZARD...gusty winds 40 to 50 mph and up to penny sized hail.
IMPACT...expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely.
Some locations in the path of this storm include...
Chappells.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify. Monitor NOAA Weather Radio, local radio and
television stations for additional information and possible warnings
from the National Weather Service.
&&
LAT...LON 3425 8191 3430 8190 3431 8188 3431 8176
3407 8169 3407 8193 3413 8187 3416 8191
3418 8190 3418 8192 3419 8192 3420 8194
TIME...MOT...LOC 2352Z 359DEG 14KT 3427 8182
RCSpecial weather statement, Aug 6, 9:18 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Columbia SC
918 PM EDT MON AUG 6 2018
SCZ025-026-070200-
Saluda SC-Edgefield SC-
918 PM EDT MON AUG 6 2018
...Strong Thunderstorms Will Impact Portions of central Saluda and
northeastern Edgefield Counties Until 1000 PM EDT....
At 917 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Saluda, or 18 miles northwest of Batesburg,
moving south at 15 mph.
HAZARD...gusty winds 35 to 45 mph, excessive cloud to ground
lightning and localized minor flooding.
IMPACT...expect minor damage to tree limbs and blowing around of
light, unsecured objects. All outdoor activities should
cease. Move indoors immediately. Localized, minor
flooding of low lying and poor drainage areas is also
possible.
Some locations in the path of this storm include...
Edgefield, Saluda, Johnston, Ridge Spring, Monetta and Ward.
Heavy rainfall is occurring with this storm, and may cause localized
flooding. Do not drive your vehicle through flooded roadways.
Move indoors immediately. Excessive cloud to ground lightning is
occurring with this storm. If you can hear thunder, you are close
enough to be struck by lightning.
LAT...LON 3414 8174 3385 8160 3375 8197 3392 8208
TIME...MOT...LOC 0117Z 346DEG 11KT 3405 8183
hcThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:45 PM EDT | Special Weather Statement | CAE | Lexington | 45 min |
| Aug 7, 3:31 PM EDT | Special Weather Statement | CAE | Chesterfield | 59 min |
| Aug 7, 3:47 PM EDT | Severe Thunderstorm Warning | CAE | Aiken | 43 min |
| Aug 7, 3:52 PM EDT | Special Weather Statement | CAE | Richland | 38 min |
| Aug 7, 3:56 PM EDT | Special Weather Statement | CAE | Lexington | 49 min |
| Aug 7, 4:06 PM EDT | Areal Flood Advisory | CAE | Aiken, Edgefield | 114 min |
| Aug 7, 4:32 PM EDT | Areal Flood Advisory | CAE | Lexington | 58 min |
| Aug 7, 4:40 PM EDT | Special Weather Statement | CAE | Calhoun | 50 min |
| Aug 7, 5:51 PM EDT | Special Weather Statement | CAE | Columbia, McDuffie | 24 min |
| Aug 7, 7:05 PM EDT | Special Weather Statement | CAE | Burke | 55 min |
Nearby
Special Weather Statements in South Carolina, 2018Every special weather statement in 2018
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.